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"Identifier": "405.1", "Context": "TestAmerica", "Name": "405.1", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-24T18:19:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "5", "Identifier": "415.1", "Context": "LADEQ QAPP", "Name": "415.1", "QualifierType": "", "Description": "EPA Method for TOC", "LastChangeDate": "2009-06-02T13:39:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60956", "Identifier": "445.0", "Context": "445.0", "Name": "445.0", "QualifierType": "Routine Sampling", "Description": "", "LastChangeDate": "2024-05-24T09:36:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2366", "Identifier": "4500-CN I 18TH ED", "Context": "Pace Analytical Svcs.(Formerly Heritage)", "Name": "4500-CN I 18TH ED", "QualifierType": "", "Description": "", 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"1361", "Identifier": "525.2 IDEM", "Context": "ISDH", "Name": "525.2 IDEM", "QualifierType": "", "Description": "", "LastChangeDate": "2011-10-27T07:51:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2373", "Identifier": "525.3 IDEM", "Context": "ISDH", "Name": "525.3 IDEM", "QualifierType": "", "Description": "", "LastChangeDate": "2026-06-24T14:22:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61153", "Identifier": "5540C", "Context": "SYCEO_WQX", "Name": "5540C", "QualifierType": "", "Description": "Lab Prep Method from FGL for MBAS, Calc. as LAS, MW 320", "LastChangeDate": "2026-01-24T15:03:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1392", "Identifier": "INC", "Context": "MEDEP_WQX", "Name": "60-DAY INCUBATION AT 20 DEGREES C.", "QualifierType": "", "Description": "", "LastChangeDate": "2014-09-02T11:07:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2374", "Identifier": "608", "Context": "Pace Analytical Svcs.(Formerly Heritage)", "Name": "608", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-03T10:31:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61149", "Identifier": "608.3", "Context": "SYCEO_WQX", "Name": "608.3", "QualifierType": "", "Description": "Lab Prep Method from FGL", "LastChangeDate": "2025-11-21T19:01:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61148", "Identifier": "624.1", "Context": "SYCEO_WQX", "Name": "624.1", "QualifierType": "", "Description": "Lab Prep Method from FGL", "LastChangeDate": "2025-11-21T19:01:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample 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"2379", "Identifier": "9060", "Context": "Pace Analytical (formerly EnChem)", "Name": "9060", "QualifierType": "", "Description": "", "LastChangeDate": "2025-12-01T10:37:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2609", "Identifier": "9222-D", "Context": "APHA", "Name": "9222-D", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-05T13:13:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2380", "Identifier": "9223B", "Context": "ISDH", "Name": "9223B", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-25T09:36:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1362", "Identifier": "9223B", "Context": "ISDH", "Name": "9223B", "QualifierType": "", "Description": "", "LastChangeDate": "2011-10-27T07:50:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2610", "Identifier": "9230-C", "Context": "APHA", "Name": "9230-C", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-05T13:10:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1022", "Identifier": "A-SCALE", "Context": "EPA_GLNPO", "Name": "A-SCALE", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "49053", "Identifier": "A2540 D-11", "Context": "INSTOR_WQX", "Name": "A2540 D-11", "QualifierType": "", "Description": "", "LastChangeDate": "2025-09-18T09:34:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60921", "Identifier": "A2540 D-15", "Context": "INSTOR_WQX", "Name": "A2540 D-15", "QualifierType": "", "Description": "", "LastChangeDate": "2025-09-11T10:17:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1940", "Identifier": "00436", "Context": "00436", "Name": "ACIDITY, MINERAL AS CACO3", "QualifierType": "Ambient Sampling", "Description": "010", "LastChangeDate": "2014-11-20T15:55:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2094", "Identifier": "543", "Context": "543", "Name": "ALDRIN", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28136", "Identifier": "00410M", "Context": "00410M", "Name": "ALKALINITY AS CaCO3 @ pH 3.9", "QualifierType": "Routine Sampling", "Description": "412", "LastChangeDate": "2025-11-17T12:39:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1939", "Identifier": "00410", "Context": "00410", "Name": "ALKALINITY AS CaCO3 @ pH 4.5", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2678", "Identifier": "00410", "Context": "00410", "Name": "ALKALINITY REPORTED @ pH 4.5", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2020-04-11T15:01:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2024", "Identifier": "01106A", "Context": "01106A", "Name": "ALUMINUM, DISSOLVED (WATER & WASTE) BY ICP", "QualifierType": "Routine Sampling", "Description": "018", "LastChangeDate": "2025-11-18T08:52:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2725", "Identifier": "01106H", "Context": "01106H", "Name": "ALUMINUM, DISSOLVED (WATER & WASTE) BY ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2025", "Identifier": "01106H", "Context": "01106H", "Name": "ALUMINUM, DISSOLVED (WATER & WASTE) BY ICPMS", "QualifierType": "Routine Sampling", "Description": "015", "LastChangeDate": "2026-08-05T10:22:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "23107", "Identifier": "01106D", "Context": "01106D", "Name": "ALUMINUM, DISSOLVED 0.1 micron filter BY ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2026-08-05T10:20:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28147", "Identifier": "01104A", "Context": "01104A", "Name": "ALUMINUM, RECOVERABLE (WATER & WASTE) ICP", "QualifierType": "Routine Sampling", "Description": "086", "LastChangeDate": "2021-08-16T15:56:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2022", "Identifier": "01105A", "Context": "01105A", "Name": "ALUMINUM, TOTAL (WATER & WASTE) BY ICP", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2723", "Identifier": "01105A", "Context": "01105A", "Name": "ALUMINUM, TOTAL (WATER & WASTE) BY ICP", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2023", "Identifier": "01105H", "Context": "01105H", "Name": "ALUMINUM, TOTAL (WATER & WASTE) ICPMS", "QualifierType": "Routine Sampling", "Description": "010", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2724", "Identifier": "01105H", "Context": "01105H", "Name": "ALUMINUM, TOTAL (WATER & WASTE) ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28140", "Identifier": "01105Z", "Context": "01105Z", "Name": "ALUMINUM, TOTAL (MINE DRAINAGE) BY ICP", "QualifierType": "Routine Sampling", "Description": "757", "LastChangeDate": "2021-08-18T11:28:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3549", "Identifier": "AMME_BRG_HCL", "Context": "11NPSWRD_WQX", "Name": "AMME Marine Plants Lab Preparation by Doty and Marsh", "QualifierType": "", "Description": "The algal turf species present in each plastic-bag sample from Able Dock seawall in Tanapag Harbor, Saipan by Doty and Marsh in 1976 were placed in a 10% HCl solution to remove the carbonates. Doty, J.E., and J.A. Marsh, Jr.; 1977; Marine Survey of Tanapag Harbor, Saipan: The Power Barge Impedance, University of Guam Marine Laboratory Technical Report No. 33, Prepared for Marianas Planner, Government of the Northern Marianas as per Trust Territory Contract No. 002819.; The Marine Laboratory, University of Guam, Mangilao, Guam; 147 pp.", "LastChangeDate": "2021-04-30T11:48:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3550", "Identifier": "AMME_MSED_PREP", "Context": "11NPSWRD_WQX", "Name": "AMME Sediment Lab Preparation by Matson", "QualifierType": "", "Description": "Sediments collected from San Roque Bay, Saipan by Matson were routinely dried at 50° C, homogenized, and subsampled for several types of analyses. Reagent-grade hydrochloric acid (HCl) was diluted to 20% by volume with reverse-osmosis, deionized tap water and was used to extract labile aluminum, iron, and ammonium. Approximately 2 to 10 grams of dried sediment was weighed into acid-cleaned Erlenmeyer flasks or glass dissection dishes, followed by the addition of the 20% HCl. Extraction time was over 24 hours at room temperature. The particulate residue left after the carbonate digestion (%HL = percent loss in HCl) was collected by filtration onto pre-combusted, pre-weighed, Gelman type A\E glass fiber filters. The filtrate was stored in acid-cleaned LPE bottles. Matson, E.A.; 1986; Terrigenous Material in Coastal Zone Sediments of Guam and Saipan: WERI Technical Report No. 73 - Project Completion Report for Distribution and Diagenesis of Terrigenous Sediment in the Estuaries and Reef-flats of Guam, Project No. 14-08-0001-G1012.; Water and Energy Research Institute of the Western Pacific, University of Guam, Mangilao, Guam; 32 pp.", "LastChangeDate": "2021-04-30T11:53:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3554", "Identifier": "AMME_W01P_SHA", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2001 Sediment Lab Preparation for Mercury & Arsenic", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the entire contents of each sediment core liner were dislodged into a glass bowl and thoroughly mixed with a polyethylene spatula following the removal of large rocks, shells and other such bulky materials. Samples for mercury and arsenic analysis were placed in acid cleaned, polyethylene vials and dried to constant weight at 60oC. Residual amounts of sediment samples were stored in pre-cleaned glass jars at -20oC for further analysis if necessary. Upon drying, sediments were disaggregated in non-contaminating containers with a heavy Teflon rod. Samples for metal analysis were sieved through a 1 mm nylon sieve and stored in polyethylene vials at room temperature until required for analysis. Approximately 2 g of dried sediment was accurately weighed into a 125-ml glass Erlenmeyer flask followed by the slow addition of 15 ml of concentrated nitric acid. After all effervescence had subsided, the flask was capped with a Teflon stopper and heated in a boiling water bath for 3 h. After cooling, the contents of each flask were diluted to 75 ml with deionized water, thoroughly mixed and set aside to allow residual particulates to settle out. The solutions were then decanted into clean glass vials and stored at 4oC until required for analysis. Denton, G.R.W., B. Bearden, L.P. Concepcion, H.G. Siegrist, D.T. Vann, H.R. Wood; 2001; Contaminant Assessment of Surface Sediment from Tanapag Lagoon, Saipan: WERI Technical Report No. 93; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 110 pp.", "LastChangeDate": "2021-04-30T11:54:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3553", "Identifier": "AMME_W01P_SME", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2001 Sediment Lab Preparation for Metals", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the entire contents of each sediment core liner were dislodged into a glass bowl and thoroughly mixed with a polyethylene spatula following the removal of large rocks, shells and other such bulky materials. Samples for heavy metal analysis were placed in acid cleaned, polyethylene vials and dried to constant weight at 60oC. Residual amounts of sediment samples were stored in pre-cleaned glass jars at -20oC for further analysis if necessary. Upon drying, sediments were disaggregated in non-contaminating containers with a heavy Teflon rod. Samples for metal analysis were sieved through a 1 mm nylon sieve and stored in polyethylene vials at room temperature until required for analysis. The digestion of sediments for heavy metal analysis was accomplished by wet oxidation in concentrated hydrochloric and\or nitric acids. The extraction procedures were essentially similar to EPA method 3050A. Approximately 2 g of the dried sediment samples were weighed into 125 ml Erlenmeyer glass flasks, loosely capped with a Teflon stopper and digested with approximately 15 ml of concentrated nitric acid at 110-135oC for 2 days. The digests were then evaporated to dryness and re-dissolved in 20 ml of 10% nitric acid with gentle warming. The contents of each flask were thoroughly mixed and allowed to stand for several minutes prior to analysis to permit settlement of residual particulates. Denton, G.R.W., B. Bearden, L.P. Concepcion, H.G. Siegrist, D.T. Vann, H.R. Wood; 2001; Contaminant Assessment of Surface Sediment from Tanapag Lagoon, Saipan: WERI Technical Report No. 93; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 110 pp.", "LastChangeDate": "2021-04-30T11:54:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3557", "Identifier": "AMME_W01P_SPAH", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2001 Sediment Lab Preparation for PAHs", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the entire contents of each sediment core liner were dislodged into a glass bowl and thoroughly mixed with a polyethylene spatula following the removal of large rocks, shells and other such bulky materials. Samples for polycyclic aromatic hydrocarbon (PAH) analysis were air dried in the dark in shallow aluminum pans. Residual amounts of sediment samples were stored in pre-cleaned glass jars at -20oC for further analysis if necessary. Upon drying, sediments were disaggregated in non-contaminating containers with a heavy Teflon rod. Samples for PAH analysis were sieved through a 1 mm stainless steel screen into clean glass vials for storage at -20oC. Sediment samples (1-1.5 g) were subjected to microwave extraction in the same way as described above for PCB, except that methylene chloride (3 ml) was used as the extracting solvent instead of hexane, and 50 µl of deuterated acenaphthene and benzo[a]pyrene (20 ng\µl) were used as the surrogate standards. Also, the heating cycles were of shorter duration (30, 15 and 15 seconds) owing to the lower boiling point of methylene chloride. Following centrifugation, the samples were decanted into 10 ml graduated glass centrifuge tubes, placed in a warm water bath (approximately 45oC) and reduced in volume (approximately 0.75 ml). Solvent exchange into hexane (approximately 1.25 ml) and further reduction in volume (approximately 0.5 ml) was necessary prior to cleanup on silica gel (EPA method 3630C). The silica gel (230-400 mesh) was activated at 700oC and stored at 110oC prior to use. A slurry of silica gel in methylene chloride was loaded into a series of disposable glass Pasteur pipettes. Gentle tapping facilitated settling and even packing of the columns which, on completion, were 4 cm in length and contained approximately 0.5 g of adsorbent. The columns were pre-eluted with 2 x 1-ml volumes of hexane to remove the methylene chloride and kept under hexane until required. Laboratory temperatures were maintained at or below 27oC to prevent methylene chloride vapor pockets from forming in the columns during the preparation process. The sample extracts (approximately 0.5 ml) were transferred to the columns using clean glass pipettes and allowed to drain into the adsorbent. Approximately 0.25 ml of hexane was used to rinse each centrifuge tube and complete the transfer process. The columns were eluted with 1 ml of hexane to remove PCBs, sulfur, and aliphatic hydrocarbons, followed by 2 ml of methylene chloride\pentane (2:3, v\v) to recover the PAHs. After cleanup, the eluates were reduced in volume (approximately 0.5 ml) prior to solvent exchange with acetonitrile (1.0 ml). Further reduction in volume (0.1 ml) preceded transfer to clean, glass auto-sampler vials with small volume (250 ul) inserts. Finally, 10 µl of the internal standard, decafluorobiphenyl (500 ng\µl), was added to each vial before chromatographic analysis. Denton, G.R.W., B. Bearden, L.P. Concepcion, H.G. Siegrist, D.T. Vann, H.R. Wood; 2001; Contaminant Assessment of Surface Sediment from Tanapag Lagoon, Saipan: WERI Technical Report No. 93; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 110 pp.", "LastChangeDate": "2021-04-30T11:54:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3556", "Identifier": "AMME_W01P_SPCB", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2001 Sediment Lab Preparation for PCBs", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the entire contents of each sediment core liner were dislodged into a glass bowl and thoroughly mixed with a polyethylene spatula following the removal of large rocks, shells and other such bulky materials. Samples for polychlorinated biphenyl (PCB) analysis were air dried in the dark in shallow aluminum pans. Residual amounts of sediment samples were stored in pre-cleaned glass jars at -20oC for further analysis if necessary. Upon drying, sediments were disaggregated in non-contaminating containers with a heavy Teflon rod. Samples for PCB analysis were sieved through a 1 mm stainless steel screen into clean glass vials for storage at -20oC. Approximately 1 g of air-dried sediment was accurately weighed into a 10 ml Teflon centrifuge tube along with 0.25 g of activated copper to remove elemental sulfur (EPA method 3665A). The samples were extracted with 3 ml of n-hexane in a commercial microwave oven (700 watt-high energy setting) for sequential periods of 60, 30 and 15 seconds. A rotating turntable insured homogeneous distribution of microwave radiation within the unit. Each tube was touched against a Vortex Genie for 5 seconds between heating cycles to ensure the extract was thoroughly mixed. After standing overnight the samples were vortexed again before centrifuging at 2500 rpm for 5 minutes. The clear extracts were decanted into 3 ml graduated glass centrifuge tubes, placed in a warm water bath (45oC) and reduced in volume (approximately 0.25 ml) under a gentle stream of nitrogen. Cleanup was accomplished with 60-100 mesh Florisil, activated and stored at 110oC. The Florisil columns (approximately 0.25 g) were made up in disposable glass Pasteur pipettes (see EPA method 3620B) and rinsed with 2 x 1 ml volumes of hexane prior to use. Approximately 0.25 ml of hexane was used to complete the transfer process. Each column was then eluted with hexane under gentle pressure. The PCB fraction was recovered in the first 1.5 ml of hexane through the column. The cleaned-up extract was reduced in volume to 0.1 ml and transferred to a clean, glass auto-sampler vial fitted with a small-volume (250 ul) insert. Denton, G.R.W., B. Bearden, L.P. Concepcion, H.G. Siegrist, D.T. Vann, H.R. Wood; 2001; Contaminant Assessment of Surface Sediment from Tanapag Lagoon, Saipan: WERI Technical Report No. 93; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 110 pp.", "LastChangeDate": "2021-04-30T11:54:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3551", "Identifier": "AMME_W01P_SPS", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2001 Sediment Lab Preparation for Particle Size", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the entire contents of each sediment core liner were dislodged into a glass bowl and thoroughly mixed with a polyethylene spatula following the removal of large rocks, shells and other such bulky materials. Samples for petrographic and particle size analysis were immediately set aside to dry at room temperature. Residual amounts of sediment samples were stored in pre-cleaned glass jars at -20oC for further analysis if necessary. Upon drying, sediments were disaggregated in non-contaminating containers with a heavy Teflon rod. Denton, G.R.W., B. Bearden, L.P. Concepcion, H.G. Siegrist, D.T. Vann, H.R. Wood; 2001; Contaminant Assessment of Surface Sediment from Tanapag Lagoon, Saipan: WERI Technical Report No. 93; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 110 pp.", "LastChangeDate": "2021-04-30T11:54:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3555", "Identifier": "AMME_W01P_SSN", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2001 Sediment Lab Preparation for Tin", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the entire contents of each sediment core liner were dislodged into a glass bowl and thoroughly mixed with a polyethylene spatula following the removal of large rocks, shells and other such bulky materials. Samples for tin analysis were placed in acid cleaned, polyethylene vials and dried to constant weight at 60oC. Residual amounts of sediment samples were stored in pre-cleaned glass jars at -20oC for further analysis if necessary. Upon drying, sediments were disaggregated in non-contaminating containers with a heavy Teflon rod. Samples for metal analysis were sieved through a 1 mm nylon sieve and stored in polyethylene vials at room temperature until required for analysis. Sediment samples (approximately 2 g) were initially digested with concentrated hydrochloric acid (approximately 8 ml) to decompose the carbonates present. Following overnight evaporation to dryness on a hot-plate at 100oC, the samples were further digested in 10 ml of aqua regia (3:1 HCl and HNO3) at 100oC for 3 h. Upon cooling, sample volumes were adjusted to 100 ml with deionized water. Denton, G.R.W., B. Bearden, L.P. Concepcion, H.G. Siegrist, D.T. Vann, H.R. Wood; 2001; Contaminant Assessment of Surface Sediment from Tanapag Lagoon, Saipan: WERI Technical Report No. 93; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 110 pp.", "LastChangeDate": "2021-04-30T11:54:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3552", "Identifier": "AMME_W01P_STOC", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2001 Sediment Lab Preparation for Total Organic Carbon", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the entire contents of each sediment core liner were dislodged into a glass bowl and thoroughly mixed with a polyethylene spatula following the removal of large rocks, shells and other such bulky materials. Samples for total organic carbon (TOC) analysis were placed in acid cleaned, polyethylene vials and dried to constant weight at 60oC. Residual amounts of sediment samples were stored in pre-cleaned glass jars at -20oC for further analysis if necessary. Upon drying, sediments were disaggregated in non-contaminating containers with a heavy Teflon rod. Denton, G.R.W., B. Bearden, L.P. Concepcion, H.G. Siegrist, D.T. Vann, H.R. Wood; 2001; Contaminant Assessment of Surface Sediment from Tanapag Lagoon, Saipan: WERI Technical Report No. 93; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 110 pp.", "LastChangeDate": "2021-04-30T11:54:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3561", "Identifier": "AMME_W88P_AAHS", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 & 2018 Algae Lab Preparation for Mercury, Arsenic & Selenium", "QualifierType": "", "Description": "Gross particulate material was rinsed from the University of Guam Water and Environmental Research Institute (WERI) algae samples beforehand by vigorously shaking the samples back and forth in clean seawater; the holdfasts and older, more encrusted portions of the plants were discarded. All cleaned and separated biota samples were placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. Wet tissue was used for the mercury, arsenic, and selenium analyses. Approximately 5 g of the samples were weighed into 80-ml polypropylene digestion tubes specifically made for a MOD BLOCK digestion block (CPI International). The tubes were loosely capped with Teflon stoppers and refluxed with 15-20 ml of 2:1 concentrated nitric to sulfuric acid as an overnight, cold-digestion. The digests were topped up to 50 ml with distilled water ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:55:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3560", "Identifier": "AMME_W88P_AME", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 & 2018 Algae Lab Preparation for Metals", "QualifierType": "", "Description": "Gross particulate material was rinsed from the University of Guam Water and Environmental Research Institute (WERI) algae samples beforehand by vigorously shaking the samples back and forth in clean seawater; the holdfasts and older, more encrusted portions of the plants were discarded. All cleaned and separated biota samples were placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. The digestion was performed on samples dried to constant weight at 60oC for cadmium, chromium, copper, lead, nickel, silver, and zinc. Approximately 1 g of the dried samples were weighed into 80 ml glass tubes and digested with approximately 10 ml of concentrated nitric acid as an overnight, cold-digestion in a MOD BLOCK digestion block (CPI International). The digests were then subjected to two 3-hour digestion\drying cycles with hot nitric acid prior to topping up to final volume with 10% nitric acid. The contents of each flask were thoroughly mixed, allowed to stand for several minutes to permit settlement of residual particulates, and then decanted into clean polypropylene vials ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:55:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3567", "Identifier": "AMME_W88P_BAHS", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 & 2018 Bivalve Lab Preparation for Mercury, Arsenic & Selenium", "QualifierType": "", "Description": "Bivalves were scrubbed clean of adhering particulates and purged of their gut contents in clean seawater for 48 hours prior to freezing in the University of Guam Water and Environmental Research Institute (WERI) laboratory. Subsequently, the entire soft parts of the thawed specimens were taken for analysis. All cleaned and separated biota samples were placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. Wet tissue was used for mercury, arsenic, and selenium analyses. Approximately 5 g of the samples were weighed into 80-ml polypropylene digestion tubes specifically made for a MOD BLOCK digestion block (CPI International). The tubes were loosely capped with Teflon stoppers and refluxed with 15-20 ml of 2:1 concentrated nitric to sulfuric acid as an overnight, cold-digestion. The digests were topped up to 50 ml with distilled water ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:55:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3566", "Identifier": "AMME_W88P_BME", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 & 2018 Bivalve Lab Preparation for Metals", "QualifierType": "", "Description": "Bivalves were scrubbed clean of adhering particulates and purged of their gut contents in clean seawater for 48 hours prior to freezing in the University of Guam Water and Environmental Research Institute (WERI) laboratory. Subsequently, the entire soft parts of the thawed specimens were taken for analysis. All cleaned and separated biota samples were placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. The digestion was performed on samples dried to constant weight at 60oC for cadmium, chromium, copper, lead, nickel, silver, and zinc. Approximately 1 g of the dried samples were weighed into 80 ml glass tubes and digested with approximately 10 ml of concentrated nitric acid as an overnight, cold-digestion in a MOD BLOCK digestion block (CPI International). The digests were then subjected to two 3-hour digestion\drying cycles with hot nitric acid prior to topping up to final volume with 10% nitric acid. The contents of each flask were thoroughly mixed, allowed to stand for several minutes to permit settlement of residual particulates, and then decanted into clean polypropylene vials ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:55:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3563", "Identifier": "AMME_W88P_GAHS", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 & 2018 Seagrass Lab Preparation for Mercury, Arsenic & Selenium", "QualifierType": "", "Description": "All cleaned and separated University of Guam Water and Environmental Research Institute (WERI) seagrass sampleswere placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. Wet tissue was used for mercury, arsenic, and selenium analyses. Approximately 5 g of the samples were weighed into 80-ml polypropylene digestion tubes specifically made for a MOD BLOCK digestion block (CPI International). The tubes were loosely capped with Teflon stoppers and refluxed with 15-20 ml of 2:1 concentrated nitric to sulfuric acid as an overnight, cold-digestion. The digests were topped up to 50 ml with distilled water ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:55:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3562", "Identifier": "AMME_W88P_GME", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 & 2018 Seagrass Lab Preparation for Metals", "QualifierType": "", "Description": "All cleaned and separated University of Guam Water and Environmental Research Institute (WERI) seagrass samples were placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. Digestions were performed on samples dried to constant weight at 60oC for cadmium, chromium, copper, lead, nickel, silver, and zinc. Approximately 1 g of the dried samples were weighed into 80 ml glass tubes and digested with approximately 10 ml of concentrated nitric acid as an overnight, cold-digestion in a MOD BLOCK digestion block (CPI International). The digests were then subjected to two 3-hour digestion\drying cycles with hot nitric acid prior to topping up to final volume with 10% nitric acid. The contents of each flask were thoroughly mixed, allowed to stand for several minutes to permit settlement of residual particulates, and then decanted into clean polypropylene vials ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:55:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3568", "Identifier": "AMME_W08P_JHA", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 Juvenile Fish Lab Preparation for Mercury & Arsenic", "QualifierType": "", "Description": "Axial muscle was taken for analysis from pooled samples of the thawed juvenile fish in the University of Guam Water and Environmental Research Institute (WERI) laboratory. Pool sizes generally ranged from one to six fish depending upon the species and size of individuals caught. All cleaned and separated biota samples were placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. The mercury and arsenic analyses were performed on wet tissue samples. Approximately 5 g of the samples were weighed into 80-ml polypropylene digestion tubes specifically made for a MOD BLOCK digestion block (CPI International). The tubes were loosely capped with Teflon stoppers and refluxed with 15-20 ml of 2:1 concentrated nitric to sulfuric acid as an overnight, cold-digestion. The digests were topped up to 50 ml with distilled water ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:54:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3565", "Identifier": "AMME_W08P_CHA", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 Seacumber Lab Preparation for Mercury & Arsenic", "QualifierType": "", "Description": "Seacucumbers were dissected live in the University of Guam Water and Environmental Research Institute (WERI) laboratory to prevent tissue fluid cross-contamination that can occur during the thawing of frozen specimens. Dorsal sections of the body wall and the portions of the hemal system were separated out for analysis from these organisms. All cleaned and separated biota samples were placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. The mercury and arsenic analyses were performed on wet tissue samples. Approximately 5 g of the samples were weighed into 80-ml polypropylene digestion tubes specifically made for a MOD BLOCK digestion block (CPI International). The tubes were loosely capped with Teflon stoppers and refluxed with 15-20 ml of 2:1 concentrated nitric to sulfuric acid as an overnight, cold-digestion. The digests were topped up to 50 ml with distilled water ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:54:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3564", "Identifier": "AMME_W08P_CME", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 Seacumber Lab Preparation for Metals", "QualifierType": "", "Description": "Seacucumbers were dissected live in the University of Guam Water and Environmental Research Institute (WERI) laboratory to prevent tissue fluid cross-contamination that can occur during the thawing of frozen specimens. Dorsal sections of the body wall and the portions of the hemal system were separated out for analysis from these organisms. All cleaned and separated biota samples were placed in acid-washed, polypropylene vials (80 ml) and stored at -20oC until required for analysis. The digestion was performed on samples dried to constant weight at 60oC for cadmium, chromium, copper, lead, nickel, silver, and zinc. Approximately 1 g of the dried samples were weighed into 80 ml glass tubes and digested with approximately 10 ml of concentrated nitric acid as an overnight, cold-digestion in a MOD BLOCK digestion block (CPI International). The digests were then subjected to two 3-hour digestion\drying cycles with hot nitric acid prior to topping up to final volume with 10% nitric acid. The contents of each flask were thoroughly mixed, allowed to stand for several minutes to permit settlement of residual particulates, and then decanted into clean polypropylene vials ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:54:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3559", "Identifier": "AMME_W08P_SHA", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 Sediment Lab Preparation for Mercury & Arsenic", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, surface sediment samples were dried at either approximately 30oC for mercury or approximately 60oC for arsenic analysis and sieved through a 1-mm Teflon screen in preparation for digestion. Approximately 5 g of sieved sediment samples were weighed into 80-ml polypropylene digestion tubes specifically made for a MOD BLOCK digestion block (CPI International). The tubes were loosely capped with Teflon stoppers and refluxed with 15-20 ml of concentrated nitric acid at 100oC for 3 hours. Upon cooling the digests were topped up to 50 ml with distilled water ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:54:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3558", "Identifier": "AMME_W08P_SME", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2008 Sediment Lab Preparation for Metals", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, surface sediment samples were dried at approximately 60oC for analysis of cadmium, chromium, copper, lead, nickel, silver, and zinc, and sieved through a 1-mm Teflon screen in preparation for digestion. Approximately 1 g of the dried sediment samples were weighed into 80 ml glass tubes and digested with approximately 10 ml of concentrated nitric acid at 110-135oC for 3 hours in a MOD BLOCK digestion block (CPI International). The digests were then evaporated to dryness and re-dissolved in 10 ml of 10% nitric acid with gentle warming. The contents of each flask were thoroughly mixed, allowed to stand for several minutes to permit settlement of residual particulates, and then decanted into clean polypropylene vials ready for analysis. Denton, G.R.W., B.G. Bearden, P. Houk, J.A. Starmer, H.R. Wood; 2008; Heavy Metals in Biotic Representatives from the Intertidal Zone and Nearshore Waters of Tanapag Lagoon, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): WERI Technical Report No. 123; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 50 pp.", "LastChangeDate": "2021-04-30T11:54:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3569", "Identifier": "AMME_W10P_FHA", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2010 Fish Lab Preparation for Mercury & Arsenic", "QualifierType": "", "Description": "At the Saipan Division of Fish and Wildlife laboratory, the fish collected were weighed, measured (fork length) and their reproductive status assessed. All tissue dissections were performed using high-quality, stainless steel instruments. Axial muscle was taken from directly under the dorsal fin on the left side of the fish for mercury and arsenic analyses. Hepatic tissues, if available, were analyzed for arsenic and mercury only. Tissues for mercury and arsenic analyses were stored in acid cleaned polypropylene vials. The great majority of fish were processed within a few hours of capture. The remainder were deep-frozen as quickly as possible and processed within one month. All tissue samples for chemical analyses were stored at -20oC prior to shipment to the University of Guam Water and Environmental Research Institute (WERI) laboratory. Arsenic and mercury analyses were performed on wet tissues. The digestion procedure involved approximately 1 g of wet fish tissue in 10 ml of 2:1 concentrated nitric and sulfuric acids in 80-ml polypropylene tubes. The charged tubes were loosely capped with Teflon stoppers and allowed to cold digest overnight before refluxing at 100oC for 3 hours. Upon cooling, the digests were topped up to 50 ml with distilled water ready for final analysis. Denton, G.R.W., M.S. Trianni, M. Tenorio; 2010; Impact of Land-Based Sources of Pollution on Coastal Water Quality of Saipan, Commonwealth of the Northern Mariana Islands (CNMI): Arsenic, Mercury and PCBs in Popular Table Fish from Saipan Lagoon - WERI Technical Report No. 130; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 98 pp.", "LastChangeDate": "2021-04-30T11:55:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3570", "Identifier": "AMME_W10P_FPCB", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2010 Fish Lab Preparation for PCBs", "QualifierType": "", "Description": "At the Saipan Division of Fish and Wildlife laboratory, the fish collected were weighed, measured (fork length) and their reproductive status assessed. All tissue dissections were performed using high-quality, stainless steel instruments. Axial muscle was taken from directly under the dorsal fin on the right side of the fish for PCB determinations. Tissues for PCB determinations were individually wrapped in aluminum foil and sealed in Ziploc® bags. The great majority of fish were processed within a few hours of capture. The remainder were deep-frozen as quickly as possible and processed within one month. All tissue samples for chemical analyses were stored at -20oC prior to shipment to the University of Guam Water and Environmental Research Institute (WERI) laboratory. Extraction for PCB analysis was performed on freeze dried samples. Frozen tissue homogenates were lyophilized for 24 hours in glass jars loosely covered with aluminum foil, then re-homogenized and stored in glass vials at -20°C for later analysis. Samples underwent pressurized fluid extraction with n-hexane in a DIONEX Accelerated Solvent Extractor 200 (ASE) equipped with 22-ml extraction cells. Each cell was loaded with 5.0g of Florisil followed by approximately 0.5g of sample mixed with 1.0 g Hydromatrix (diatomaceous earth). This arrangement achieved in-cell clean-up of the sample extracts. Each cell was then spiked with 25µl of 2ppm of the surrogate standard 4,4'-dibromooctafluorobiphenyl (DBOFB) before topping with Hydromatrix and capping. Extraction conditions were as follows: oven temperature: 125°C; pressure: 1750 psi; static time: 5 min (after 5 min pre-heat equilibration); flush volume: 70% of the cell volume; nitrogen purge: 50 sec at 150 psi; static cycles: 2. The extracts were collected in calibrated vials and concentrated to approximately 0.1 ml under a gentle stream of filtered air in a Zymark® TurboVap. The concentrated extracts were spiked with 25µl of 2 mg\L of the internal standard, pentachloronitrobenzene (PCNB) and adjusted to final volumes of 0.2 ml with hexane using a Pasteur pipette. After gently touching each sample to a vortex mixer, they were transferred to 2ml glass vials fitted with 250 µl inserts, capped and stored at 4°C. Denton, G.R.W., M.S. Trianni, M. Tenorio; 2010; Impact of Land-Based Sources of Pollution on Coastal Water Quality of Saipan, Commonwealth of the Northern Mariana Islands (CNMI): Arsenic, Mercury and PCBs in Popular Table Fish from Saipan Lagoon - WERI Technical Report No. 130; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 98 pp.", "LastChangeDate": "2021-04-30T11:55:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3572", "Identifier": "AMME_W18P_SHS", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2018 Sediment Lab Preparation for Mercury & Selenium", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the mercury and selenium sediment samples were oven dried in their vials to constant weight at approximately 30oC and disaggregated in clean Ziploc bags between finger and thumb. Site replicates were then combined and dry sieved through a 1-mm Teflon screen in preparation for analysis. The digestion procedure followed EPA method 3050A, SW-846 (USEPA 1995) with minor modifications. Sediment fractions >1 mm were discarded. Approximately 2 g of sieved, sediment samples were weighed into 80-ml polypropylene digestion tubes specifically made for a MOD BLOCK digestion block (CPI International). The tubes were loosely capped with Teflon stoppers and refluxed with approximately 20 ml of concentrated nitric acid at 100oC for 3 hours. Upon cooling, the digests were reheated to 100oC for 15 minutes following the addition of 5 ml of concentrated hydrochloric acid to reduce Se6+ to Se4+. Each digest was then topped up to a final 50-ml volume with 10% hydrochloric acid. Denton, G.R.W., J.O. Cruz, M.N.C. Duenas, M.J. Gawel, J.S. Mills, K.G. Brookins; 2018; Heavy Metal Assessment of Sediments and Selected Biota from American Memorial Park Nearshore Waters, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): Arsenic, Mercury and PCBs in Popular Table Fish from Saipan Lagoon; WERI Technical Report No. 130; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 95 pp.", "LastChangeDate": "2021-04-30T11:55:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3571", "Identifier": "AMME_W18P_SME", "Context": "11NPSWRD_WQX", "Name": "AMME WERI 2018 Sediment Lab Preparation for Metals", "QualifierType": "", "Description": "In the University of Guam Water and Environmental Research Institute (WERI) laboratory, the heavy metal sediment samples were oven dried in their vials to constant weight at approximately 30oC and disaggregated in clean Ziploc bags between finger and thumb. Site replicates were then combined and dry sieved through a 1-mm Teflon screen in preparation for analysis. Sediment fractions >1 mm were discarded. The digestion procedure followed EPA method 3050A, SW-846 (USEPA 1995) with minor modifications. Approximately 1 g of each dried sediment sample was weighed into an 80-ml glass MOD BLOCK tube and digested with approximately 10 ml of concentrated nitric acid at 100oC for 3 hours. The digests were then evaporated to near dryness at 135oC and allowed to cool before re-dissolving in 10 ml of 10% nitric acid with gentle warming. The contents of each tube were thoroughly mixed and allowed to stand for several hours at room temperature to permit residual particulates to settle out. Clear aliquots of each sample were then decanted into clean polypropylene vials ready for analysis. Denton, G.R.W., J.O. Cruz, M.N.C. Duenas, M.J. Gawel, J.S. Mills, K.G. Brookins; 2018; Heavy Metal Assessment of Sediments and Selected Biota from American Memorial Park Nearshore Waters, Saipan, Commonwealth of the Northern Mariana Islands (CNMI): Arsenic, Mercury and PCBs in Popular Table Fish from Saipan Lagoon; WERI Technical Report No. 130; Water and Environmental Research Institute (WERI) of the Western Pacific, University of Guam, Mangilao, Guam; 95 pp.", "LastChangeDate": "2021-04-30T11:55:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2682", "Identifier": "00608A", "Context": "00608A", "Name": "AMMONIA DISSOLVED AS NITROGEN", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1948", "Identifier": "00608A", "Context": "00608A", "Name": "AMMONIA DISSOLVED AS NITROGEN", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1949", "Identifier": "00610A", "Context": "00610A", "Name": "AMMONIA TOTAL AS NITROGEN", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2683", "Identifier": "00610A", "Context": "00610A", "Name": "AMMONIA TOTAL AS NITROGEN", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1027", "Identifier": "ANL_MTHD", "Context": "EPA_GLNPO", "Name": "ANL_MTHD", "QualifierType": "", "Description": "", "LastChangeDate": "2024-01-25T10:46:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2021", "Identifier": "01097H", "Context": "01097H", "Name": "ANTIMONY, TOTAL (WATER &WASTE) BY ICPMS", "QualifierType": "Routine Sampling", "Description": "087", "LastChangeDate": "2026-08-05T10:22:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1005", "Identifier": "4500-CN(E)", "Context": "CDATRUST", "Name": "APHA 4500-CN(E) Cyanide Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2013-03-26T13:50:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1396", "Identifier": "NOAA1998M", "Context": "MEDEP_WQX", "Name": "AQUA-REGIA TISSUE DIGESTION BASED ON NOAA 1998 STATUS AND TRENDS METHOD UPDATES PAGE 78, MODIFIED", "QualifierType": "", "Description": "", "LastChangeDate": "2014-06-20T13:06:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61709", "Identifier": "ARI Sample Prep", "Context": "PUYALLUP_WQX", "Name": "ARI Sample Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-12-19T20:57:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28135", "Identifier": "1056", "Context": "1056", "Name": "AROCHLOR 1016", "QualifierType": "Routine Sampling", "Description": "PCBF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2115", "Identifier": "595", "Context": "595", "Name": "AROCHLOR 1221", "QualifierType": "Routine Sampling", "Description": "PCBF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2116", "Identifier": "596", "Context": "596", "Name": "AROCHLOR 1232", "QualifierType": "Routine Sampling", "Description": "PCBF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2117", "Identifier": "597", "Context": "597", "Name": "AROCHLOR 1242", "QualifierType": "Routine Sampling", "Description": "PCBF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2118", "Identifier": "598", "Context": "598", "Name": "AROCHLOR 1248", "QualifierType": "Routine Sampling", "Description": "PCBF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2119", "Identifier": "599", "Context": "599", "Name": "AROCHLOR 1254", "QualifierType": "Routine Sampling", "Description": "PCBF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2120", "Identifier": "600", "Context": "600", "Name": "AROCHLOR 1260", "QualifierType": "Routine Sampling", "Description": "PCBF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1351", "Identifier": "EPA 8082", "Context": "21MSWQ_WQX", "Name": "AROCHLORS (PCBs)", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-24T13:26:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1979", "Identifier": "01000H", "Context": "01000H", "Name": "ARSENIC, DISSOLVED (WATER & WASTE) BY ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2026-08-05T08:59:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2702", "Identifier": "01000H", "Context": "01000H", "Name": "ARSENIC, DISSOLVED (WATER & WASTE) BY ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1980", "Identifier": "01002H", "Context": "01002H", "Name": "ARSENIC, TOTAL (WATER & WASTE) BY ICPMS", "QualifierType": "Routine Sampling", "Description": "083", "LastChangeDate": "2026-08-05T10:22:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2523", "Identifier": "ASE Extraction HRMS", "Context": "ASE Extraction for sediments-HRGCMS", "Name": "ASE Extraction for sediments-HRGCMS", "QualifierType": "", "Description": "", "LastChangeDate": "2026-01-16T00:18:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1030", "Identifier": "C29", "Context": "EPA_GLNPO", "Name": "ASTM C29", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1062", "Identifier": "D2850", "Context": "EPA_GLNPO", "Name": "ASTM D2850", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-18T16:40:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1063", "Identifier": "D2937", "Context": "EPA_GLNPO", "Name": "ASTM D2937", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:27:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2381", "Identifier": "ASTM D2974", "Context": "Pace Analytical (Wisconsin)", "Name": "ASTM D2974", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-16T13:44:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2382", "Identifier": "ASTM D2974-8", "Context": "Pace Analytical (Wisconsin)", "Name": "ASTM D2974-8", "QualifierType": "", "Description": "", "LastChangeDate": "2017-11-30T12:47:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59725", "Identifier": "ASTM D2974-8", "Context": "WQXTEST", "Name": "ASTM D2974-8", "QualifierType": "", "Description": "", "LastChangeDate": "2023-06-29T20:39:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36366", "Identifier": "ASTM D2974-87", "Context": "Pace Analytical (Wisconsin)", "Name": "ASTM D2974-87", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:30:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2383", "Identifier": "ASTM D2974-87", "Context": "Pace Analytical (Wisconsin)", "Name": "ASTM D2974-87", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-06T08:28:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60315", "Identifier": "ASTM D2974-87", "Context": "Pace Analytical (Wisconsin)", "Name": "ASTM D2974-87", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-01T19:05:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37020", "Identifier": "ASTM D2974-87", "Context": "Pace Analytical (Wisconsin)", "Name": "ASTM D2974-87", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T18:02:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1065", "Identifier": "D3080", "Context": "EPA_GLNPO", "Name": "ASTM D3080", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1066", "Identifier": "D420", "Context": "EPA_GLNPO", "Name": "ASTM D420", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61081", "Identifier": "ASTM D422", "Context": "Pace Analytical (Wisconsin)", "Name": "ASTM D422", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-06T08:28:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1067", "Identifier": "D4310", "Context": "EPA_GLNPO", "Name": "ASTM D4310", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1070", "Identifier": "D7263", "Context": "EPA_GLNPO", "Name": "ASTM D7263", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-18T14:26:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1071", "Identifier": "D7363", "Context": "EPA_GLNPO", "Name": "ASTM D7363", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T11:27:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1072", "Identifier": "E1109", "Context": "EPA_GLNPO", "Name": "ASTM E1109", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1394", "Identifier": "MLA-007-E1", "Context": "MEDEP_WQX", "Name": "AXYS INTERNAL METHOD FOR DETERMINATION OF ORGANOCHLORINE PESTICIDES IN WATER BY CAPILLARY GAS CHROMATOGRAPHY", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T13:07:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1395", "Identifier": "MLA-007-E2", "Context": "MEDEP_WQX", "Name": "AXYS INTERNAL METHOD FOR E2 PESTICIDE METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T13:07:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60950", "Identifier": "Accurate-Routine", "Context": "OWRB-Lakes", "Name": "Accurate, Inc.", "QualifierType": "", "Description": "Method for the analysis of water quality samples in surface waters.", "LastChangeDate": "2024-04-23T15:13:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2079", "Identifier": "411", "Context": "411", "Name": "Acetone", "QualifierType": "Routine Sampling", "Description": "VOAWW", "LastChangeDate": "2021-08-19T09:42:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1412", "Identifier": "ACID DIGEST", "Context": "21FLSJWM", "Name": "Acid Digest", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-17T10:42:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1536", "Identifier": "ACID DIGEST", "Context": "21FLSUW", "Name": "Acid Digest", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-11T12:24:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1769", "Identifier": "3010-A", "Context": "USEPA", "Name": "Acid Digestion of Aqueous Samples and Extracts for Total Metals for Analysis fy FLAA 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For information on the details of the SOP, please contact Caltest at 707-258-4000 or 1885 North Kelly Rd. Napa, California 94558.", "LastChangeDate": "2017-04-26T15:15:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2384", "Identifier": "Carbonaceous", "Context": "Pace Analytical (Indy)", "Name": "Carbonaceous", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-17T16:08:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "23105", "Identifier": "00418C", "Context": "00418C", "Name": "Carbonate Alkalinity", "QualifierType": "Routine Sampling", "Description": "122", "LastChangeDate": "2026-08-05T10:20:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60998", "Identifier": "PREPCARDINALLABS", "Context": "SOUTHUTE", "Name": "Cardinal Labs", "QualifierType": "", "Description": "", "LastChangeDate": "2025-02-20T07:22:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1796", "Identifier": "GLKN_CAT", "Context": "11NPSWRD_WQX", "Name": "Cations (Ca, Na, Mg, K)", "QualifierType": "", "Description": "filter using a 0.45 um Millipore filter, preserve with HNO3, refrigerate Magdalene, S., D.R. Engstrom, and J.E. Elias; 2007; Standard operating procedure #7: Processing water samples and analytical laboratory requirements. in Magdalene, S., D.R. Engstrom, and J.E. Elias. 2007. Large rivers water quality monitoring protocol, Version 1.0.; National Park Service, Great Lakes Network; 11 pp.", "LastChangeDate": "2026-07-13T13:43:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60936", "Identifier": "Lab", "Context": "Lab", "Name": "Certified Lab", "QualifierType": "", "Description": "", "LastChangeDate": "2024-08-29T14:34:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59746", "Identifier": "Thaw\Extraction", "Context": "USEPA", "Name": "Chesapeake Biological Laboratory", "QualifierType": "", "Description": "", "LastChangeDate": "2026-07-31T14:38:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59745", "Identifier": "Thaw\Digestion", "Context": "USEPA", "Name": "Chesapeake Biological Laboratory", "QualifierType": "", "Description": "", "LastChangeDate": "2026-07-31T14:38:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59744", "Identifier": "Thaw", "Context": "Chesapeake Biological Laboratory", "Name": "Chesapeake Biological Laboratory", "QualifierType": "", "Description": "", "LastChangeDate": "2026-07-31T14:38:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2204", "Identifier": "EPA325.3", "Context": "21FLORAN", "Name": "Chloride", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-21T18:18:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1215", "Identifier": "LMMB060", "Context": "EPA_GLNPO", "Name": "Chloride - Automated Flow Injection Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1116", "Identifier": "LG205", "Context": "EPA_GLNPO", "Name": "Chloride and Silica in Lake Water", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T10:24:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1227", "Identifier": "LMMB072", "Context": "EPA_GLNPO", "Name": "Chloride and Silica in Lake Water (Lachat Method)", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1752", "Identifier": "325.2(PREP)", "Context": "21FLACEP", "Name": "Chloride by Colorimetric Analysis II (Preparation)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:15:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2229", "Identifier": "SM4500CLE", "Context": "21FLORAN", "Name": "Chloride in Water by Colorimetry- Automated Ferricyanide Method", "QualifierType": "", "Description": "", "LastChangeDate": "2016-05-05T16:06:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1798", "Identifier": "GLKN_CL", "Context": "11NPSWRD_WQX", "Name": "Chlorides", "QualifierType": "", "Description": "filter through a 0.45 um filter, no preservative, refrigerate Magdalene, S., D.R. Engstrom, and J.E. Elias; 2007; Standard operating procedure #7: Processing water samples and analytical laboratory requirements. in Magdalene, S., D.R. Engstrom, and J.E. Elias. 2007. Large rivers water quality monitoring protocol, Version 1.0.; National Park Service, Great Lakes Network; 11 pp.", "LastChangeDate": "2026-07-13T13:43:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1375", "Identifier": "515.3", "Context": "USEPA", "Name": "Chlorinated Acids by GC\ECD", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-22T11:45:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2149", "Identifier": "F50060", "Context": "F50060", "Name": "Chlorine, Total Residual****", "QualifierType": "Routine Sampling", "Description": "", "LastChangeDate": "2021-08-19T09:42:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2132", "Identifier": "82", "Context": "82", "Name": "Chloroethane****", "QualifierType": "Routine Sampling", "Description": "VOA-1", "LastChangeDate": "2014-11-20T15:23:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3058", "Identifier": "UVAVTSSS_UVA_CHLOROF", "Context": "UVAVTSSS_WQX", "Name": "Chloroform Preservation", "QualifierType": "", "Description": "Sample unfiltered, 0.5 mL chloroform added per 500 mL volume, stored at room temperature. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2020-04-09T19:33:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33330", "Identifier": "UVA_CHLOROFORM", "Context": "UVAVTSSS_WQX", "Name": "Chloroform Preservation", "QualifierType": "", "Description": "Sample unfiltered, 0.5 mL chloroform added per 500 mL volume, stored at room temperature. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-01-25T15:48:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "48991", "Identifier": "UVA_CHLOROFORM", "Context": "WQXTEST", "Name": "Chloroform Preservation", "QualifierType": "", "Description": "Sample unfiltered, 0.5 mL chloroform added per 500 mL volume, stored at room temperature. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2024-02-20T15:46:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1907", "Identifier": "UVA_CHLOROFORM", "Context": "11NPSWRD_WQX", "Name": "Chloroform Preservation", "QualifierType": "", "Description": "Sample unfiltered, 0.5 mL chloroform added per 500 mL volume, stored at room temperature. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-12-16T14:04:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1819", "Identifier": "MIDN_UVA_CHLOROFORM", "Context": "11NPSWRD_WQX", "Name": "Chloroform preservation", "QualifierType": "", "Description": "Sample unfiltered, 0.5 mL chloroform added per 500 mL volume, stored at room temperature. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2019-11-01T11:29:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1870", "Identifier": "PEFO_UVA_CHLOROFORM", "Context": "11NPSWRD_WQX", "Name": "Chloroform preservation", "QualifierType": "", "Description": "Sample unfiltered, 0.5 mL chloroform added per 500 mL volume, stored at room temperature. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2020-02-27T09:22:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1812", "Identifier": "GRSM_UVA_CHLOROFORM", "Context": "11NPSWRD_WQX", "Name": "Chloroform preservation", "QualifierType": "", "Description": "Sample unfiltered, 0.5 mL chloroform added per 500 mL volume, stored at room temperature. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2020-02-27T11:33:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2031", "Identifier": "113", "Context": "113", "Name": "Chloromethane****", "QualifierType": "Routine Sampling", "Description": "VOA-1", "LastChangeDate": "2014-11-20T15:23:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1527", "Identifier": "SM 10200H", "Context": "21FLHILL", "Name": "Chlorophyll", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-06T13:14:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1241", "Identifier": "LMMB086", "Context": "EPA_GLNPO", "Name": "Chlorophyll - Spectrophotometric", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2527", "Identifier": "Chlorophyll 10200H", "Context": "Chlorophyll 10200H Prep", "Name": "Chlorophyll 10200H Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2026-08-18T03:43:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2270", "Identifier": "445", "Context": "21FLAVON", "Name": "Chlorophyll A Prep Procedure", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-11T16:57:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1457", "Identifier": "SOP-BB02", "Context": "21FLA", "Name": "Chlorophyll Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-14T12:29:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2493", "Identifier": "CHLA", "Context": "21FLTBW", "Name": "Chlorophyll Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T16:03:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2221", "Identifier": "SM10200H", "Context": "21FLORAN", "Name": "Chlorophyll Suite", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1797", "Identifier": "GLKN_CHLA", "Context": "11NPSWRD_WQX", "Name": "Chlorophyll a", "QualifierType": "", "Description": "filter through a Whatman GF\C filter, fold filter to 1\4 size - filtrate side in, wrap in tin foil, place in plastic baggie, freeze Magdalene, S., D.R. Engstrom, and J.E. Elias; 2007; Standard operating procedure #7: Processing water samples and analytical laboratory requirements. in Magdalene, S., D.R. Engstrom, and J.E. Elias. 2007. Large rivers water quality monitoring protocol, Version 1.0.; National Park Service, Great Lakes Network; 11 pp.", "LastChangeDate": "2026-07-13T13:43:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2056", "Identifier": "32230", "Context": "32230", "Name": "Chlorophyll a", "QualifierType": "Routine Sampling", "Description": "B019", "LastChangeDate": "2023-01-04T14:24:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1135", "Identifier": "LG404", "Context": "EPA_GLNPO", "Name": "Chlorophyll a Sampling", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "10", "Identifier": "GRE:Chl_Phae", "Context": "EMAP_GRE", "Name": "Chlorophyll a and pheophytin a extraction method", "QualifierType": "", "Description": "Chlorophyll a and pheophytin filters were processed using a 95% acetone extraction method prior to analysis (Sellers and Bukaveckas, 2003).", "LastChangeDate": "2009-08-07T10:20:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2234", "Identifier": "10200-H", "Context": "21FLMCGL", "Name": "Chlorophyll a-b-c Determination", "QualifierType": "", "Description": "", "LastChangeDate": "2019-01-22T15:52:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3162", "Identifier": "NLA Chl-a", "Context": "NARS_WQX", "Name": "Chlorophyll-a (Chl-a) Extraction 90% acetone analysis by fluorometry", "QualifierType": "", "Description": "", "LastChangeDate": "2022-06-03T16:10:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "23096", "Identifier": "962", "Context": "962", "Name": "Chlorophyll-a (fluorometric)", "QualifierType": "Routine Sampling", "Description": "B029", "LastChangeDate": "2026-08-05T10:22:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1165", "Identifier": "LMMB015", "Context": "EPA_GLNPO", "Name": "Chlorophyll-a Sampling Method: Field Procedure", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1240", "Identifier": "LMMB085", "Context": "EPA_GLNPO", "Name": "Chlorophyll-a and Pheophytin-a", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28131", "Identifier": "71939", "Context": "71939", "Name": "Chromium in fish, wet weight*", "QualifierType": "Routine Sampling", "Description": "059", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1087", "Identifier": "GC-ITTMS", "Context": "EPA_GLNPO", "Name": "Clarkson Univ-Ion Trap Tandem MS", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1088", "Identifier": "GC-NICIMS", "Context": "EPA_GLNPO", "Name": "Clarkson Univ-Negative Ion Chemical Ionization MS", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1057", "Identifier": "Clarkson-%DW", "Context": "EPA_GLNPO", "Name": "Clarkson Univ. - % Dry Weight", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1059", "Identifier": "Clarkson-Hg", "Context": "EPA_GLNPO", "Name": "Clarkson Univ. - Hg SOP", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "25428", "Identifier": "COARSE", "Context": "COARSE", "Name": "Coarse - Fraction Concentration *", "QualifierType": "Routine Sampling", "Description": "618", "LastChangeDate": "2026-08-05T10:20:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1020", "Identifier": "A-CWT", "Context": "EPA_GLNPO", "Name": "Coded wire tag", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1177", "Identifier": "LMMB027", "Context": "EPA_GLNPO", "Name": "Coho Sampling", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1172", "Identifier": "LMMB022", "Context": "EPA_GLNPO", "Name": "Collection of Benthic Invertebrates for Contaminant Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1169", "Identifier": "LMMB019", "Context": "EPA_GLNPO", "Name": "Collection of Sediment Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2222", "Identifier": "SM2120B", "Context": "21FLORAN", "Name": "Color", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1742", "Identifier": "110.2(PREP)", "Context": "21FLACEP", "Name": "Color Analysis Using Platinum\Cobalt (Preparation)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:15:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2494", "Identifier": "COLOR", "Context": "21FLTBW", "Name": "Color preparation SM2120B", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T16:03:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61715", "Identifier": "WRST_EPACM_DESL", "Context": "11NPSWRD_WQX", "Name": "Combined Method for Extraction of Diesel Fuel, EPA 3510 & EPA 3550", "QualifierType": "", "Description": "U.S. Environmental Protection Agency (USEPA); 1986; Test Methods for Evaluating Solid Waste, Physical\Chemical Methods, SW-846, 3rd edition, November 1986; U.S. Environmental Protection Agency, Washington, D.C.; 1 vol.", "LastChangeDate": "2026-05-14T13:57:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2507", "Identifier": "CENTRIFUGE", "Context": "MDEQ-WQ_WQX", "Name": "Concentrate Suspended Particulates by Centrifuge", "QualifierType": "", "Description": "", "LastChangeDate": "2020-01-06T09:46:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1817", "Identifier": "GWCA_MSSC_METL", "Context": "11NPSWRD", "Name": "Concentration of Metals in Water Samples by Pyrrolidine Dithiocarbamic Acid Chelation and Chloroform Extraction", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-08T18:19:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2268", "Identifier": "USEPA 3520-C", "Context": "USEPA", "Name": "Continuous Liquid-Liquid Extraction for Organics", "QualifierType": "", "Description": "", "LastChangeDate": "2009-11-20T16:36:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1775", "Identifier": "3520-C", "Context": "USEPA", "Name": "Continuous Liquid-Liquid Extraction for Organics", "QualifierType": "", "Description": "USEPA; 1998; Test Methods for Evaluating Solid Waste, Physical\Chemical Methods, 3rd Edition, Final Update III.; USEPA; SW-846_III", "LastChangeDate": "2022-01-12T18:39:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2514", "Identifier": "USEPA 3520-C", "Context": "USEPA", "Name": "Continuous Liquid-Liquid Extraction for Organics", "QualifierType": "", "Description": "", "LastChangeDate": "2009-12-03T13:19:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28130", "Identifier": "71937", "Context": "71937", "Name": "Copper in fish, wet weight*", "QualifierType": "Routine Sampling", "Description": "059", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61171", "Identifier": "WAPA_W151_CRLTISS", "Context": "11NPSWRD_WQX", "Name": "Coral Tissue Preparation for PCB Analyses by Welch et al. 2015", "QualifierType": "", "Description": "The frozen Sinularia polydactyla coral tissue samples were lyophilized by Welch and others in a freeze-dryer for 24 hours, in glass jars, loosely capped with aluminum foil. Once dried, they were ground to a fine powder with pestle and mortar, transferred into pre-cleaned glass vials with Teflon caps, and stored at -20°C. Welch, P.M., P.J. Schupp, G.R.W. Denton; 2015; Utility of the Soft Coral, Sinularia polydactyla as a Biomonitor of Polychlorinated Biphenyls (PCBs) in Tropical Marine Waters: A Preliminary Assessment, Water and Energy Research Institute of the Western Pacific (WERI) Technical Report No. 151, March 2015; Water and Energy Research Institute of the Western Pacific (WERI), University of Guam, Mangilao, Guam; 49 pp. + appendices", "LastChangeDate": "2026-03-23T10:26:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28155", "Identifier": "1623C", "Context": "1623C", "Name": "Cryptosporidium Oocysts", "QualifierType": "Emerging Contaminant", "Description": "B023", "LastChangeDate": "2021-08-19T09:41:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2528", "Identifier": "Cyanide 4500 CN- C", "Context": "Cyanide 4500 CN- C Prep", "Name": "Cyanide 4500 CN- C Prep", "QualifierType": 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Magdalene, S., D.R. Engstrom, and J.E. Elias; 2007; Standard operating procedure #7: Processing water samples and analytical laboratory requirements. in Magdalene, S., D.R. Engstrom, and J.E. Elias. 2007. Large rivers water quality monitoring protocol, Version 1.0.; National Park Service, Great Lakes Network; 11 pp.", "LastChangeDate": "2026-07-13T13:43:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2692", "Identifier": "00681", "Context": "00681", "Name": "Dissolved Organic Carbon", "QualifierType": "Stormwater Sampling", "Description": "121", "LastChangeDate": "2014-10-31T09:51:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1962", "Identifier": "00681", "Context": "00681", "Name": "Dissolved Organic Carbon", "QualifierType": "Ambient Sampling", "Description": "200", "LastChangeDate": "2026-08-05T10:22:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2208", "Identifier": "EPA360.2", "Context": "21FLORAN", "Name": "Dissolved Oxygen", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "23098", "Identifier": "F00301", "Context": "F00301", "Name": "Dissolved Oxygen - Field****", "QualifierType": "Routine Sampling", "Description": "", "LastChangeDate": "2026-08-05T10:22:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1140", "Identifier": "LG501", "Context": "EPA_GLNPO", "Name": "Dissolved Oxygen Micro Method, Winkler Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-18T20:47:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1141", "Identifier": "LG501A", "Context": "EPA_GLNPO", "Name": "Dissolved Oxygen Micro Method, Winkler Titration (no azide)", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1143", "Identifier": "LG501Y", "Context": "EPA_GLNPO", "Name": "Dissolved Oxygen mehod using YSI meter", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1959", "Identifier": "00666A", "Context": "00666A", "Name": "Dissolved Phosphorus as P", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2689", "Identifier": "00666A", "Context": "00666A", "Name": "Dissolved Phosphorus as P", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1228", "Identifier": "LMMB073", "Context": "EPA_GLNPO", "Name": "Dissolved Reactive Phosphorous (Lachat Method)", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3031", "Identifier": "Distill\Ammonia", "Context": "Eurofins TestAmerica - Phoenix", "Name": "Distill\Ammonia", "QualifierType": "", "Description": "", "LastChangeDate": "2020-08-20T11:40:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33311", "Identifier": "Distill\Ammonia", "Context": "Eurofins TestAmerica Chicago", "Name": "Distill\Ammonia", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-13T15:02:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1764", "Identifier": "Distillation", "Context": "21FLACEP", "Name": "Distillation", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-06T15:02:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1827", "Identifier": "NIOB_ML_TESTAMC_DP", "Context": "11NPSWRD_WQX", "Name": "Distillation of Phenols by TestAmerica Chicago For NIOB Mistake Lake Storm Water Project", "QualifierType": "", "Description": "Unknown; 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Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2471", "Identifier": "EPA 200.7", "Context": "EPA", "Name": "EPA 200.7", "QualifierType": "", "Description": "", "LastChangeDate": "2025-02-12T22:50:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37026", "Identifier": "EPA 200.7", "Context": "Pace Analytical (Indy)", "Name": "EPA 200.7", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T18:05:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1415", "Identifier": "EPA 200.7", "Context": "21FLSJWM", "Name": "EPA 200.7", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-14T10:57:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2395", "Identifier": "EPA 200.7", "Context": "Pace Analytical (Indy)", "Name": "EPA 200.7", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-02T12:16:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36372", "Identifier": "EPA 200.7", "Context": "Pace Analytical (Indy)", "Name": "EPA 200.7", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:33:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60569", "Identifier": "EPA 200.7", "Context": "Pace Analytical (Indy)", "Name": "EPA 200.7", "QualifierType": "", "Description": "", "LastChangeDate": "2023-08-22T10:33:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2396", "Identifier": "EPA 200.7 Di", "Context": "Test America (Dayton)", "Name": "EPA 200.7 Di", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-31T08:48:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1363", "Identifier": "EPA 200.7 To", "Context": "Test America (Dayton)", "Name": "EPA 200.7 To", "QualifierType": "", "Description": "", "LastChangeDate": "2011-08-18T15:17:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2397", "Identifier": "EPA 200.7 To", "Context": "Test America (Dayton)", "Name": "EPA 200.7 To", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-10T09:48:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3040", "Identifier": "EPA 200.7P", "Context": "XENCO LABORATORIES - TEMPE", "Name": "EPA 200.7P", "QualifierType": "", "Description": "", "LastChangeDate": "2020-08-31T12:07:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61009", "Identifier": "EPA 200.8", "Context": "FONDULAC_WQX", "Name": "EPA 200.8", "QualifierType": "", "Description": "Extraction Method - Pace Lab", "LastChangeDate": "2025-02-11T01:22:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59733", "Identifier": "EPA 200.8", "Context": "AZDEQ_SW", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2026-02-02T10:14:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1416", "Identifier": "EPA 200.8", "Context": "21FLSJWM", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-14T10:57:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60973", "Identifier": "EPA 200.8", "Context": "USEPA", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-03T16:51:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36373", "Identifier": "EPA 200.8", "Context": "Pace Analytical (Indy)", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:33:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2398", "Identifier": "EPA 200.8", "Context": "Pace Analytical (Indy)", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-02T12:28:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37027", "Identifier": "EPA 200.8", "Context": "Pace Analytical (Indy)", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T18:05:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2565", "Identifier": "EPA 200.8", "Context": "EPA", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2018-02-28T17:24:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2472", "Identifier": "EPA 200.8", "Context": "EPA", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-29T09:22:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60308", "Identifier": "EPA 200.8", "Context": "Pace Analytical (Indy)", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2023-08-22T10:33:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3013", "Identifier": "EPA 200.8", "Context": "EPA 200.8", "Name": "EPA 200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2019-02-12T11:01:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2399", "Identifier": "EPA 200.8 To", "Context": "Test America (Dayton)", "Name": "EPA 200.8 To", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-10T09:48:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1364", "Identifier": "EPA 200.8 To", "Context": "Test America (Dayton)", "Name": "EPA 200.8 To", "QualifierType": "", "Description": "", "LastChangeDate": "2011-08-18T15:17:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3041", "Identifier": "EPA 200.8P", "Context": "XENCO LABORATORIES - TEMPE", "Name": "EPA 200.8P", "QualifierType": "", "Description": "", "LastChangeDate": "2020-08-31T12:07:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33562", "Identifier": "EPA 245.1", "Context": "AZDEQ_SW", "Name": "EPA 245.1", "QualifierType": "", "Description": "", "LastChangeDate": "2026-02-02T10:14:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2670", "Identifier": "EPA 245.1\245.2 Prep", "Context": "CCWF", "Name": "EPA 245.1\245.2 Prep", "QualifierType": "", "Description": "EPA 245.1\245.2 Prep", "LastChangeDate": "2016-01-06T18:43:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2400", "Identifier": "EPA 245.1\SW", "Context": "Test America (Dayton)", "Name": "EPA 245.1\SW", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-10T09:48:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3186", "Identifier": "EPA 245.1P", "Context": "XENCO LABORATORIES - TEMPE", "Name": "EPA 245.1P", "QualifierType": "", "Description": "", "LastChangeDate": "2020-08-31T12:07:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2554", "Identifier": "EPA 300.0", "Context": "USEPA", "Name": "EPA 300.0", "QualifierType": "", "Description": "", "LastChangeDate": "2021-01-20T16:18:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60980", "Identifier": "EPA 300.0", "Context": "USEPA", "Name": "EPA 300.0", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-03T16:51:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36375", "Identifier": "EPA 300.0", "Context": "Pace Analytical (Indy)", "Name": "EPA 300.0", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:33:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60570", "Identifier": "EPA 300.0", "Context": "Pace Analytical (Indy)", "Name": "EPA 300.0", "QualifierType": "", "Description": "", "LastChangeDate": "2023-08-22T10:33:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2401", "Identifier": "EPA 300.0", "Context": "Pace Analytical (Indy)", "Name": "EPA 300.0", "QualifierType": "", "Description": "", "LastChangeDate": "2026-06-30T13:40:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37029", "Identifier": "EPA 300.0", "Context": "Pace Analytical (Indy)", "Name": "EPA 300.0", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T18:05:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61726", "Identifier": "EPA 300.0 R2.1", "Context": "Pace Analytical (Indy)", "Name": "EPA 300.0 R2.1", "QualifierType": "", "Description": "", "LastChangeDate": "2026-06-30T13:40:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2179", "Identifier": "EPA 3005", "Context": "21FLSWFD", "Name": "EPA 3005", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-26T14:10:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1417", "Identifier": "EPA 3005", "Context": "21FLSJWM", "Name": "EPA 3005", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-25T14:16:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3382", "Identifier": "EPA 3005", "Context": "21FLSUW", "Name": "EPA 3005", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-03T09:15:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1500", "Identifier": "EPA 3005", "Context": "21FLJXWQ", "Name": "EPA 3005", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-23T13:47:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3183", "Identifier": "EPA 300P", "Context": "XENCO LABORATORIES - TEMPE", "Name": "EPA 300P", "QualifierType": "", "Description": "", "LastChangeDate": "2020-08-31T12:07:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1931", "Identifier": "EPA 3010", "Context": "21FLSEM", "Name": "EPA 3010", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-29T12:45:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2184", "Identifier": "EPA 3010", "Context": "21FLPBCH", "Name": "EPA 3010", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T12:13:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60773", "Identifier": "EPA 3010", "Context": "21FLACEP", "Name": "EPA 3010", "QualifierType": "", "Description": "", "LastChangeDate": "2023-10-03T14:17:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60968", "Identifier": "EPA 3010A", "Context": "BVR", "Name": "EPA 3010A", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-01T18:52:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2798", "Identifier": "EPA 3010A", "Context": "R10BOOMSNUB", "Name": "EPA 3010A", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T12:31:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33065", "Identifier": "EPA 3015A", "Context": "AKDECAKMAP", "Name": "EPA 3015A", "QualifierType": "", "Description": "Microwave assisted acid digestion of aqueous samples and extracts", "LastChangeDate": "2021-10-11T12:46:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3365", "Identifier": "EPA 3020", "Context": "21FLGTM", "Name": "EPA 3020", "QualifierType": "", "Description": "", "LastChangeDate": "2021-12-21T11:52:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "49059", "Identifier": "EPA 3050", "Context": "21FLWQA", "Name": "EPA 3050", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-01T12:12:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60775", "Identifier": "EPA 3050", "Context": "21FLPNS", "Name": "EPA 3050", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-02T10:58:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2503", "Identifier": "EPA 3050", "Context": "21FLCOT", "Name": "EPA 3050", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-15T10:35:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "49035", "Identifier": "EPA 3050", "Context": "21FLLOX", "Name": "EPA 3050", "QualifierType": "", "Description": "", "LastChangeDate": "2023-02-07T11:41:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60894", "Identifier": "EPA 3050", "Context": "21FLWQSP", "Name": "EPA 3050", "QualifierType": "", "Description": "", "LastChangeDate": "2023-10-12T10:19:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2402", "Identifier": "EPA 3050 7.5", "Context": "Pace Analytical (Wisconsin)", "Name": "EPA 3050 7.5", "QualifierType": "", "Description": "", "LastChangeDate": "2017-11-27T08:19:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59723", "Identifier": "EPA 3050B", "Context": "Pace Analytical (Wisconsin)", "Name": "EPA 3050B", "QualifierType": "", "Description": "", "LastChangeDate": "2023-08-22T10:33:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2799", "Identifier": "EPA 3050B", "Context": "R10BOOMSNUB", "Name": "EPA 3050B", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T13:16:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36370", "Identifier": "EPA 3050B", "Context": "Pace Analytical (Wisconsin)", "Name": "EPA 3050B", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:30:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60953", "Identifier": "EPA 3050B", "Context": "FONDULAC_WQX", "Name": "EPA 3050B", "QualifierType": "", "Description": "Extraction Method - Pace Lab", "LastChangeDate": "2024-05-19T09:35:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61017", "Identifier": "EPA 3050B", "Context": "USEPA", "Name": "EPA 3050B", "QualifierType": "", "Description": "", "LastChangeDate": "2025-04-05T10:01:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37024", "Identifier": "EPA 3050B", "Context": "Pace Analytical (Wisconsin)", "Name": "EPA 3050B", "QualifierType": "", "Description": "", "LastChangeDate": 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"LastChangeDate": "2021-10-11T12:46:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61077", "Identifier": "EPA 3052", "Context": "SOUTHUTE", "Name": "EPA 3052", "QualifierType": "", "Description": "", "LastChangeDate": "2025-09-09T04:11:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2800", "Identifier": "EPA 3060A", "Context": "R10BOOMSNUB", "Name": "EPA 3060A", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T13:16:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2404", "Identifier": "EPA 310.1", "Context": "Pace Analytical (Indy)", "Name": "EPA 310.1", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-17T16:08:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2405", "Identifier": "EPA 325.2", "Context": "Pace Analytical (Indy)", "Name": "EPA 325.2", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-17T16:08:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60307", "Identifier": "EPA 335.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 335.4", "QualifierType": "", "Description": "", "LastChangeDate": "2023-08-22T10:33:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36376", "Identifier": "EPA 335.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 335.4", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:33:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2406", "Identifier": "EPA 335.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 335.4", "QualifierType": "", 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"Description": "", "LastChangeDate": "2024-03-13T09:44:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2171", "Identifier": "EPA 365.4", "Context": "21FLSARA", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-29T10:01:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2658", "Identifier": "EPA 365.4", "Context": "21FLCONB", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2023-02-17T15:47:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2654", "Identifier": "EPA 365.4", "Context": "21FLCOAB", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2023-01-09T08:44:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1523", "Identifier": "EPA 365.4", "Context": "21FLHILL", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-22T17:49:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1503", "Identifier": "EPA 365.4", "Context": "21FLJXWQ", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-23T13:47:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59721", "Identifier": "EPA 365.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-13T15:03:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3391", "Identifier": "EPA 365.4", "Context": "21FLGW", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2023-10-03T16:27:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60985", "Identifier": "EPA 365.4", "Context": "21FLNOPO", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-17T12:02:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60934", "Identifier": "EPA 365.4", "Context": "21FLHESD", "Name": "EPA 365.4", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-22T16:55:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2555", "Identifier": "EPA 365.4 (TP)", "Context": "USEPA", "Name": "EPA 365.4 (TP)", "QualifierType": "", "Description": "", "LastChangeDate": "2021-01-20T16:18:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1524", "Identifier": "EPA 370.1", "Context": "21FLHILL", "Name": "EPA 370.1", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-06T13:14:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1525", "Identifier": "EPA 375.4", "Context": "21FLHILL", "Name": "EPA 375.4", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-06T13:14:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2414", "Identifier": "EPA 375.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 375.4", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-17T16:08:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36380", "Identifier": "EPA 410.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 410.4", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:33:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37034", "Identifier": "EPA 410.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 410.4", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T18:05:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2415", "Identifier": "EPA 410.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 410.4", "QualifierType": "", "Description": "", "LastChangeDate": "2026-06-30T13:40:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60304", "Identifier": "EPA 410.4", "Context": "Pace Analytical (Indy)", "Name": "EPA 410.4", "QualifierType": "", "Description": "", "LastChangeDate": "2023-08-22T10:33:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61731", "Identifier": "EPA 410.4 R2", "Context": "Pace Analytical (Indy)", "Name": "EPA 410.4 R2", "QualifierType": "", "Description": "", "LastChangeDate": "2026-06-30T13:40:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2416", "Identifier": "EPA 415.1", "Context": "Pace Analytical (Indy)", "Name": "EPA 415.1", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-17T16:08:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2417", "Identifier": "EPA 415.2", "Context": "Pace Analytical (Subcontractor)", "Name": "EPA 415.2", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-12T10:02:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60987", "Identifier": "EPA 445.0", "Context": "21FLVOE", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-04T10:11:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60939", "Identifier": "EPA 445.0", "Context": "21FLMOSA", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T09:35:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60943", "Identifier": "EPA 445.0", "Context": "21FLNOPO", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-17T12:02:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2172", "Identifier": "EPA 445.0", "Context": "21FLSARA", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-29T10:01:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3368", "Identifier": "EPA 445.0", "Context": "21FLMANA", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-13T09:44:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2180", "Identifier": "EPA 445.0", "Context": "21FLSWFD", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-05T08:14:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2623", "Identifier": "EPA 445.0", "Context": "21FLSBL", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-29T11:07:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3062", "Identifier": "EPA 445.0", "Context": "21FLCOBS", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-13T14:16:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3063", "Identifier": "EPA 445.0", "Context": "21FLCOFM", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-13T14:52:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2253", "Identifier": "EPA 445.0", "Context": "21FLDADE", "Name": "EPA 445.0", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-15T14:31:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1379", "Identifier": "EPA 447.0", "Context": "21FLSFWM", "Name": "EPA 447.0", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-06T15:32:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2802", "Identifier": "EPA 5030A", "Context": "R10BOOMSNUB", "Name": "EPA 5030A", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T14:23:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2803", "Identifier": "EPA 5030B", "Context": "R10BOOMNSUB", "Name": "EPA 5030B", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T14:20:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2804", "Identifier": "EPA 5035", "Context": "R10BOOMSNUB", "Name": "EPA 5035", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T13:16:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60893", "Identifier": "EPA 522", "Context": "21FLPNS", "Name": "EPA 522", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T14:23:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60948", "Identifier": "EPA 522", "Context": "21FLA", "Name": "EPA 522", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-28T12:08:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33617", "Identifier": "EPA 546 Prep", "Context": "EPA 546 Prep", "Name": "EPA 546 Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2026-08-18T03:43:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61083", "Identifier": "EPA 6010", "Context": "Pace Analytical (Wisconsin)", "Name": "EPA 6010", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-06T08:28:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2805", "Identifier": "EPA 7195", "Context": "R10BOOMSNUB", "Name": "EPA 7195", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T12:38:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1504", "Identifier": "EPA 7470", "Context": "21FLJXWQ", "Name": "EPA 7470", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-23T13:47:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61084", "Identifier": "EPA 7470", "Context": "Pace Analytical (Wisconsin)", "Name": "EPA 7470", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-06T08:28:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60961", "Identifier": "EPA 7471A", "Context": "AZDEQ_SW", "Name": "EPA 7471A", "QualifierType": "", "Description": "", "LastChangeDate": "2025-06-03T12:40:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28118", "Identifier": "EPA 7473", "Context": "AKDECAKMAP", "Name": "EPA 7473", "QualifierType": "", "Description": "METHOD 7473|MERCURY IN SOLIDS AND SOLUTIONS BY THERMAL DECOMPOSITION,|AMALGAMATION, AND ATOMIC ABSORPTION SPECTROPHOTOMETRY", "LastChangeDate": "2021-10-11T12:46:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61016", "Identifier": "EPA 7473 Hg", "Context": "USEPA", "Name": "EPA 7473 Hg", "QualifierType": "", "Description": "", "LastChangeDate": "2025-09-11T12:40:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1478", "Identifier": "EPA 8321", "Context": "21FLGW", "Name": "EPA 8321", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-07T08:44:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1032", "Identifier": "CCN", "Context": "EPA_GLNPO", "Name": "EPA CLP Program Cyanide Method", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:28:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1034", "Identifier": "CDF", "Context": "EPA_GLNPO", "Name": "EPA CLP Program Dioxin\Furan Method", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1044", "Identifier": "CHG", "Context": "EPA_GLNPO", "Name": "EPA CLP Program Mercury Method", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:28:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1033", "Identifier": "CCONG", "Context": "EPA_GLNPO", "Name": "EPA CLP Program PCB Congener Method", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1051", "Identifier": "CPEST", "Context": "EPA_GLNPO", "Name": "EPA CLP Program Pesticide Method", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1052", "Identifier": "CSVOA", "Context": "EPA_GLNPO", "Name": "EPA CLP Program SVOA Method", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:28:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1056", "Identifier": "CVOA", "Context": "EPA_GLNPO", "Name": "EPA CLP Program VOA Method", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:28:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1049", "Identifier": "CMTL", "Context": "EPA_GLNPO", "Name": "EPA CLP Program metals method (200.7)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:28:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1053", "Identifier": "CSVOA_FS", "Context": "EPA_GLNPO", "Name": "EPA CLP program SVOC method, Full Scan", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1054", "Identifier": "CSVOA_SIM", "Context": "EPA_GLNPO", "Name": "EPA CLP program SVOC method, SIM", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:25:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2418", "Identifier": "EPA DRAFT", "Context": "Pace Analytical (formerly EnChem)", "Name": "EPA DRAFT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-12-01T10:37:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1834", "Identifier": "NPS_EPA_200.3", "Context": "11NPSWRD", "Name": "EPA Method 200.3: Total Recoverable Metals in Biological Tissues", "QualifierType": "", "Description": "", "LastChangeDate": "2018-10-16T18:37:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1836", "Identifier": "NPS_EPA_3015A", "Context": "11NPSWRD", "Name": "EPA Method 3015A, Revision 1: Microwave Assisted Acid Digestion of Aqueous Samples and Extracts, 1998", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T19:16:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1280", "Identifier": "SW7131", "Context": "EPA_GLNPO", "Name": "EPA SW-846 7131", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1284", "Identifier": "SW8141B", "Context": "EPA_GLNPO", "Name": "EPA SW-846 8141B", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1288", "Identifier": "SW8270D_SIM", "Context": "EPA_GLNPO", "Name": "EPA SW-846 8270D (SIM)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:25:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1290", "Identifier": "SW9034", "Context": "EPA_GLNPO", "Name": "EPA SW-846 9034", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-18T13:58:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1278", "Identifier": "SW6010", "Context": "EPA_GLNPO", "Name": "EPA SW6010 for Metals by ICP\AES (version not specified)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:27:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1281", "Identifier": "SW7470", "Context": "EPA_GLNPO", "Name": "EPA SW7470 for Mercury (version not specified)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-18T20:37:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1282", "Identifier": "SW7471", "Context": "EPA_GLNPO", "Name": "EPA SW7471 for Mercury (version not specified)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:28:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1285", "Identifier": "SW8260", "Context": "EPA_GLNPO", "Name": "EPA SW8260 (version not specified)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T11:23:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1286", "Identifier": "SW8270", "Context": "EPA_GLNPO", "Name": "EPA SW8270 for SVOCs (version not specified)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:27:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1287", "Identifier": "SW8270C_SIM", "Context": "EPA_GLNPO", "Name": "EPA SW8270 for SVOCs Version C, Selective Ion Monitoring", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-18T14:28:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1289", "Identifier": "SW8272", "Context": "EPA_GLNPO", "Name": "EPA SW8272", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-18T14:25:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1292", "Identifier": "SW9045C", "Context": "EPA_GLNPO", "Name": "EPA SW9045C", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-18T13:58:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1295", "Identifier": "SW9090A", "Context": "EPA_GLNPO", "Name": "EPA SW9090A Compatibility Test", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1840", "Identifier": "NPS_HAS_POCISP", "Context": "11NPSWRD_WQX", "Name": "EPA\NPS Human Activities Scan POCIS Methanol Extraction", "QualifierType": "", "Description": "For the EPA\NPS Human Activities Scan Program, the field blanks and site samples in the Polar Organic Chemical Integrative Samplers (POCIS; U.S. Patent # 6,478,961 - Petty, J.D., J.N. Huckins, D.A. Alvarez, USGS; November 12, 2002) were received by Environmental Sampling Technologies, Inc (EST, 502 S. 5th St., St. Joseph, MO 64501; ph. 816-232-8860) in coolers packed with ice. They were logged in and stored at -20C until preparation for sorbent extraction by chromatography. Each POCIS was eluded with 25 milliliters methanol and blown down under ultra-high purity (UHP) nitrogen. One sample was pooled from the six POCIS from each sampling site (only three POCIS were used for each field blank). The samples were blown down again, filtered through glass fiber filter paper, and quantitatively transferred to 5-milliliter amber ampules using methanol as the transfer solvent. The ampules were chilled in dry ice and flame sealed. The ampules were shipped to the analytical lab(s). Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2019-04-22T17:43:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2814", "Identifier": "EPA1603", "Context": "SWQC", "Name": "EPA1603", "QualifierType": "", "Description": "EPA1603, Grand Junction Labs", "LastChangeDate": "2016-03-10T15:38:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2419", "Identifier": "EPA1638", "Context": "Wisconsin State Laboratory of Hygiene", "Name": "EPA1638", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-19T15:09:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1541", "Identifier": "EPA200.7", "Context": "21FLSUW", "Name": "EPA200.7", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-11T12:24:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1542", "Identifier": "EPA200.8", "Context": "21FLSUW", "Name": "EPA200.8", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-11T12:24:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60970", "Identifier": "EPA7470A", "Context": "BVR", "Name": "EPA7470A", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-01T18:52:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1388", "Identifier": "E1668A", "Context": "MEDEP_WQX", "Name": "EPA: CHLORINATED BIPHENYL CONGENERS IN WATER, SOIL, SEDIMENT, AND TISSUE BY HRGC\HRMS", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T13:07:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1386", "Identifier": "E1613B", "Context": "MEDEP_WQX", "Name": "EPA: DIOXINS, TETRA- THROUGH OCTA-(CDDS) AND FURANS (CDFS)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T11:35:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1387", "Identifier": "E1631E", "Context": "MEDEP_WQX", "Name": "EPA: MERCURY IN WATER BY OXIDATION, PURGE AND TRAP, AND COLD VAPOR ATOMIC FLUORESCENCE SPECTROMETRY", "QualifierType": "", "Description": "", "LastChangeDate": "2015-11-30T13:23:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1389", "Identifier": "E200.2", "Context": "MEDEP_WQX", "Name": "EPA: SAMPLE PREPARATION PROCEDURE FOR SPECTROCHEMICAL DETERMINATION OF TOTAL RECOVERABLE ELEMENTS - REVISION 2.8", "QualifierType": "", "Description": "", "LastChangeDate": "2015-10-20T14:21:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1073", "Identifier": "ESS METHOD 115.1", "Context": "EPA_GLNPO", "Name": "ESS METHOD 115.1", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1074", "Identifier": "ESS METHOD 140.4", "Context": "EPA_GLNPO", "Name": "ESS METHOD 140.4", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1075", "Identifier": "ESS METHOD 220.3", "Context": "EPA_GLNPO", "Name": "ESS METHOD 220.3", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1076", "Identifier": "ESS METHOD 230.1", "Context": "EPA_GLNPO", "Name": "ESS METHOD 230.1", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1077", "Identifier": "ESS METHOD 230.1, ES", "Context": "EPA_GLNPO", "Name": "ESS METHOD 230.1, ESS METHOD 310.2 for low level", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1078", "Identifier": "ESS METHOD 310.1", "Context": "EPA_GLNPO", "Name": "ESS METHOD 310.1", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1079", "Identifier": "ESS METHOD 340.2", "Context": "EPA_GLNPO", "Name": "ESS METHOD 340.2", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1080", "Identifier": "ESS METHOD 360.2", "Context": "EPA_GLNPO", "Name": "ESS METHOD 360.2", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1081", "Identifier": "ESS METHOD 370.3", "Context": "EPA_GLNPO", "Name": "ESS METHOD 370.3", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1247", "Identifier": "LMMB092", "Context": "EPA_GLNPO", "Name": "Electrometric pH", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation 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"Identifier": "ENTMF", "Context": "ENTMF", "Name": "Enterococci", "QualifierType": "Routine Sampling", "Description": "B015", "LastChangeDate": "2021-08-18T11:31:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1521", "Identifier": "EPA 1600", "Context": "21FLHILL", "Name": "Enterococci", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-06T13:14:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2197", "Identifier": "EPA1600", "Context": "21FLORAN", "Name": "Enterococci in Water by Membrane Filtration Using membrane-Enterococcus Indoxyl-B-D-Glucoside Agar (mEl)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-21T16:40:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1470", "Identifier": "ENTEROLERT", "Context": "21FLGW", "Name": 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"2018-01-12T16:24:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2130", "Identifier": "80", "Context": "80", "Name": "Ethylbenzene****", "QualifierType": "Routine Sampling", "Description": "VOA-1", "LastChangeDate": "2014-11-20T15:23:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1810", "Identifier": "GRCA_ALPHA-BETA", "Context": "11NPSWRD", "Name": "Evaporation to Dryness on a Planchet", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-08T17:49:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3384", "Identifier": "Extract", "Context": "21FLSFWM", "Name": "Extract", "QualifierType": "", "Description": "", "LastChangeDate": "2021-03-01T14:14:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation 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and Cleanup of Glass Fiber Filters", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1195", "Identifier": "LMMB040", "Context": "EPA_GLNPO", "Name": "Extraction and Cleanup of Sediments for Semivol. Organics", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1189", "Identifier": "LMMB036", "Context": "EPA_GLNPO", "Name": "Extraction and Cleanup of XAD-2 Resin Cartridges", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1198", "Identifier": "LMMB043", "Context": "EPA_GLNPO", "Name": "Extraction and Lipid Separation of Fish Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1864", "Identifier": "NPS_SOLVEX_UNKN", "Context": "11NPSWRD", "Name": "Extraction by Unknown Solvent", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-14T10:01:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28120", "Identifier": "Extraction of Al\Fe at pH 4", "Context": "Extraction of Al\Fe at pH 4", "Name": "Extraction of Al\Fe at pH 4", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-16T22:47:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37215", "Identifier": "NPS_EPA_SW846_3535", "Context": "11NPSWRD_WQX", "Name": "Extraction of Organic Chemicals by EPA SW846 Method 3535", "QualifierType": "", "Description": "Organic chemicals were extracted before analysis by EPA SW846 Method 3535. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2022-10-26T09:41:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61707", "Identifier": "Extraction of Soils for Non-Metals", "Context": "Extraction of Soils for Non-Metals", "Name": "Extraction of Soils for Non-Metals", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-12T00:43:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1483", "Identifier": "ORGANIC EXT", "Context": "21FLGW", "Name": "Extraction of non-volatile and semi-volatile organic compounds from soils, sludges, wastes", "QualifierType": "", "Description": "", "LastChangeDate": "2018-01-12T16:24:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60805", "Identifier": "FDEP FL-PRO", "Context": "21FLPNS", "Name": 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Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1532", "Identifier": "SM 9222D", "Context": "21FLHILL", "Name": "Fecal Coliform", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-06T13:14:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2727", "Identifier": "31616", "Context": "31616", "Name": "Fecal Coliform", "QualifierType": "Ambient Sampling", "Description": "B002", "LastChangeDate": "2014-10-31T09:45:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2053", "Identifier": "31616", "Context": "31616", "Name": "Fecal Coliform", "QualifierType": "Routine Sampling", "Description": "B021", "LastChangeDate": "2026-08-05T10:22:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1762", "Identifier": "9222-D(PREP)", "Context": "21FLACEP", "Name": "Fecal Coliform Membrane Filter Procedure", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:15:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60896", "Identifier": "SM9222D-1997", "Context": "WVDEP_WQX", "Name": "Fecal Coliform Membrane Filter Procedure (Standard Methods\APHA, 1997)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-11-13T13:19:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59729", "Identifier": "SM 9222D-2006", "Context": "WVDEP_WQX", "Name": "Fecal Coliform Membrane Filter Procedure (Standard Methods\APHA, 2006)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T14:00:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59741", "Identifier": "SM 9222 D-06", "Context": "WVDEP_WQX", "Name": "Fecal Coliform Membrane Filter Procedure (Standard Methods\APHA, 2006)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-07-28T12:46:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60922", "Identifier": "SM 9222D-2015", "Context": "WVDEP_WQX", "Name": "Fecal Coliform Membrane Filter Procedure (Standard Methods\APHA, 2015)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T17:10:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2182", "Identifier": "MICRO-MF", "Context": "21FLSWFD", "Name": "Fecal Coliform Membrane Filter, 9222D", "QualifierType": "", "Description": "", "LastChangeDate": "2013-11-07T15:32:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60901", "Identifier": "Colilert 18-QT", "Context": "WVDEP_WQX", "Name": "Fecal Coliform Preparation by Colilert", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-01T16:04:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2055", "Identifier": "31673", "Context": "31673", "Name": "Fecal Streptococci", "QualifierType": "Routine Sampling", "Description": "B005", "LastChangeDate": "2014-11-20T16:32:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28151", "Identifier": "31679", "Context": "31679", "Name": "Fecal Streptococci", "QualifierType": "Routine Sampling", "Description": "B005", "LastChangeDate": "2021-08-19T09:42:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2622", "Identifier": "9230-C-2", "Context": "ZZZZZZZZ", "Name": "Fecal Streptococcus and Enterococcus Group, Membrane Filter Sample Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-19T08:58:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2163", "Identifier": "9230-C-2", "Context": "ZZZZZZZZ", "Name": "Fecal Streptococcus and Enterococcus Group, Membrane Filter Sample Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T13:13:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2188", "Identifier": "9230-C-2", "Context": "APHA", "Name": "Fecal Streptococcus and Enterococcus Group, Membrane Filter Sample Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2013-12-12T13:13:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2818", "Identifier": "Field Acidification", "Context": "Field Acidification", "Name": "Field Acidification", "QualifierType": "", "Description": "", "LastChangeDate": "2016-08-16T15:19:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2216", "Identifier": "FT1500", "Context": "21FLORAN", "Name": "Field Measurement of Dissolved Oxygen", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2213", "Identifier": "FT1100", "Context": "21FLORAN", "Name": "Field Measurement of Hydrogen Ion Activity (pH)", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2217", "Identifier": "FT1700", "Context": "21FLORAN", "Name": "Field Measurement of Light Penetration (Secchi Depth and Transparency)", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2214", "Identifier": "FT1200", "Context": "21FLORAN", "Name": "Field Measurement of Specific Conductance", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2215", "Identifier": "FT1400", "Context": "21FLORAN", "Name": "Field Measurement of Temperature", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2218", "Identifier": "FT1800", "Context": "21FLORAN", "Name": "Field Measurement of Water Flow and Velocity", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1163", "Identifier": "LMMB013", "Context": "EPA_GLNPO", "Name": "Field Sampling Using the Rosette Sampler", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1112", "Identifier": "LG200", "Context": "EPA_GLNPO", "Name": "Field Sampling Using the Rosette Sampler", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T10:26:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "34413", "Identifier": "APHN_FILT", "Context": "11NPSWRD_WQX", "Name": "Field filter 0.45 microns", "QualifierType": "", "Description": "Gently invert 1 liter bottle containing sample twice to mix. Rinse luer-lock syringe twice by suctioning a full volume of sample and expelling with plunger. Suction a full volume into syringe and affix 0.45 micron filter to luer-lock syringe. Expel a small volume through filter initially, then fill 60 milliliter bottle to overflow and fill 30 milliliter bottle to neck with filtered sample. Hughes J., R. Emmott, E. Raskin, and B. Witcher; December 2018; Long-term discrete water quality monitoring at Big South Fork National River and Recreation Area, Blue Ridge Parkway, and Obed Wild and Scenic River: Protocol narrative; National Park Service; 102p", "LastChangeDate": "2026-05-22T16:36:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61010", "Identifier": "APHN_FILT", "Context": "WQXTEST", "Name": "Field filter 0.45 microns", "QualifierType": "", "Description": "Gently invert 1 liter bottle containing sample twice to mix. Rinse luer-lock syringe twice by suctioning a full volume of sample and expelling with plunger. Suction a full volume into syringe and affix 0.45 micron filter to luer-lock syringe. Expel a small volume through filter initially, then fill 60 milliliter bottle to overflow and fill 30 milliliter bottle to neck with filtered sample. Hughes J., R. Emmott, E. Raskin, and B. Witcher; December 2018; Long-term discrete water quality monitoring at Big South Fork National River and Recreation Area, Blue Ridge Parkway, and Obed Wild and Scenic River: Protocol narrative; National Park Service; 102p", "LastChangeDate": "2025-02-21T16:11:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1082", "Identifier": "Field_pH", "Context": "EPA_GLNPO", "Name": "Field pH determination", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3014", "Identifier": "Filter thru 0.45", "Context": "APHA 4500-SO4(B)", "Name": "Filter thru 0.45", "QualifierType": "", "Description": "Filtration through a 0.45 micron filter for method 4500-SO4(B)", "LastChangeDate": "2019-02-12T11:01:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1743", "Identifier": "160.1(PREP)", "Context": "21FLACEP", "Name": "Filterable Residue - TDS (Preparation)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:15:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60960", "Identifier": "TraceElements_Filter", "Context": "SONOMAWATER_WQX", "Name": "Filtered Water Samples for Trace Elements Analysis", "QualifierType": "", "Description": "Whole water samples are filtered through 0.22 um sterivex filter and preserved with 1% HNO3", "LastChangeDate": "2024-07-16T13:15:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1900", "Identifier": "USGS_FILTREC", "Context": "11NPSWRD", "Name": "Filtered, Recoverable", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T09:21:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1910", "Identifier": "UVA_QFF_FIL_BRCL", "Context": "11NPSWRD_WQX", "Name": "Filtrate with BrCl Preservation", "QualifierType": "", "Description": "Sample filtered through a pre-baked quartz fiber filter (Whatman QM-A grade, 2.2 mm 98% efficiency particle retention in liquid) in a vacuum desiccator chamber with an acid-leached Teflon filter apparatus. Preserved with a 100% bromine chloride solution (5 mL BrCl per 1 L sample). Stored at room temperature. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-12-16T13:49:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1911", "Identifier": "UVA_QFF_FIL_UV_254", "Context": "11NPSWRD_WQX", "Name": "Filtrate with Refrigeration Preservation for UV 254 Absorbance Measurement", "QualifierType": "", "Description": "Sample filtered through a pre-baked quartz fiber filter (Whatman QM-A grade, 2.2 mm 98% efficiency particle retention in liquid) in a vacuum desiccator chamber with an acid-leached Teflon filter apparatus. Sample stored in refrigerator and brought to room temperature prior to analysis. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-12-15T17:32:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1765", "Identifier": "FILTRATION", "Context": "21FLACEP", "Name": "Filtration", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:10:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1791", "Identifier": "CABR_USN1_COPP", "Context": "11NPSWRD", "Name": "Filtration and Acidification of 1997 US Navy Water Samples for Copper by Battelle Marine Sciences Laboratory", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T13:52:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1839", "Identifier": "NPS_FILTERW_UN", "Context": "11NPSWRD", "Name": "Filtration of Water by Unknown Procedure", "QualifierType": "", "Description": "", "LastChangeDate": "2018-10-16T18:43:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3057", "Identifier": "UVAVTSSS_UVA_40GFH3P", "Context": "UVAVTSSS_WQX", "Name": "Filtration, Acidification (Phosphoric Acid), Refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a 40 mL glass vial, preserved to a pH of approximately 2 with phosphoric acid and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2020-04-09T18:13:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1906", "Identifier": "UVA_40GFH3PO4R", "Context": "11NPSWRD_WQX", "Name": "Filtration, Acidification (Phosphoric Acid), Refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a 40 mL glass vial, preserved to a pH of approximately 2 with phosphoric acid and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-12-16T13:55:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33332", "Identifier": "UVA_40GFH3PO4R", "Context": "UVAVTSSS_WQX", "Name": "Filtration, Acidification (Phosphoric Acid), Refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a 40 mL glass vial, preserved to a pH of approximately 2 with phosphoric acid and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-01-25T15:48:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33338", "Identifier": "UVA_40GFAR", "Context": "UVAVTSSS_WQX", "Name": "Filtration, Acidification (Sulfuric Acid), Refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a 40 mL glass vial, preserved to a pH of approximately 2 with sulfuric acid and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-01-24T18:11:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1905", "Identifier": "UVA_40GFAR", "Context": "11NPSWRD_WQX", "Name": "Filtration, Acidification (Sulfuric Acid), Refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a 40 mL glass vial, preserved to a pH of approximately 2 with sulfuric acid and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-12-16T13:58:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3056", "Identifier": "UVAVTSSS_UVA_40GFAR", "Context": "UVAVTSSS_WQX", "Name": "Filtration, Acidification (Sulfuric Acid), Refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a 40 mL glass vial, preserved to a pH of approximately 2 with sulfuric acid and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2020-04-09T18:01:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60916", "Identifier": "UVA_FILTER_REFRIG", "Context": "11NPSWRD_WQX", "Name": "Filtration, Refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter and refrigerated. Sample brought to room temperature before analysis. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-12-16T13:49:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1818", "Identifier": "MIDN_UVA_40GFH3PO4R", "Context": "11NPSWRD_WQX", "Name": "Filtration, acidification (phosphoric acid), refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a 40 mL glass vial, preserved to a pH of approximately 2 with phosphoric acid and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2019-11-01T11:29:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1820", "Identifier": "MIDN_UVA_FILTER_REFR", "Context": "11NPSWRD_WQX", "Name": "Filtration, refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a plastic vial and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2019-11-01T11:29:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60918", "Identifier": "UVA_FILTER_REFR", "Context": "11NPSWRD_WQX", "Name": "Filtration, refrigeration", "QualifierType": "", "Description": "Sample filtered through a 0.4 um membrane filter, stored in a plastic vial and refrigerated. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2024-02-09T22:55:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1019", "Identifier": "A-CLIP", "Context": "EPA_GLNPO", "Name": "Fin clip", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "25429", "Identifier": "FINE", "Context": "FINE", "Name": "Fine - Fraction Concentration *", "QualifierType": "Routine Sampling", "Description": "618", "LastChangeDate": "2026-08-05T10:20:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2150", "Identifier": "F70331", "Context": "F70331", "Name": "Fines****", "QualifierType": "Stormwater Sampling", "Description": "", "LastChangeDate": "2026-08-05T10:22:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2750", "Identifier": "F70331", "Context": "F70331", "Name": "Fines****", "QualifierType": "Stormwater Sampling", "Description": "", "LastChangeDate": "2014-10-31T09:52:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1175", "Identifier": "LMMB025", "Context": "EPA_GLNPO", "Name": "Fish Processing Method", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1332", "Identifier": "FTiss, FreezeDry", "Context": "21KY_WQX", "Name": "Fish Tissue - Resection and Homog., Freeze Dry", "QualifierType": "", "Description": "Fillets or whole fish are weighed, lyophilized, then weighed again to calculate the percent moisture of the sample. The sample is then homogenized in a stainless steel blender. Homogenate is stored in glass or plastic at <20C prior to analysis. Results are reported in mg\kg or µg\kg Dry Weight. Percent moisture is included in the report for the conversion to Wet Weight.", "LastChangeDate": "2017-05-11T12:42:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1333", "Identifier": "FTiss, Liquid N", "Context": "21KY_WQX", "Name": "Fish Tissue - Resection and Homog., Liquid Nitrogen", "QualifierType": "", "Description": "TissueLab:Fillets or whole fish are weighed and then homogenized in a stainless steel blender following freezing in liquid nitrogen. Samples for mercury are further homogenized with mortar and pestle. Homogenate is stored in glass at <20C prior to analysis. Results reported in mg\kg or µg\kg Wet Weight. (DOWSOP030032)", "LastChangeDate": "2017-06-16T13:32:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1655", "Identifier": "245.6", "Context": "21FLWPB", "Name": "Fish Tissue Preparation Central Lab Tallahassee", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T16:22:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "14", "Identifier": "GRE:FishTis-Hg", "Context": "EMAP_GRE", "Name": "Fish tissue: Prep for Mercury analyses", "QualifierType": "", "Description": "Wet tissue samples from many small or 3-5 large fish were prepared following methods in EPA Method 7473 (Mercury in solids and solutions by thermal decomposition). ", "LastChangeDate": "2009-08-24T12:20:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "25", "Identifier": "GRE:FishTis-C\N", "Context": "EMAP_GRE", "Name": "Fish tissue: Prep for isotope\C\N analyses", "QualifierType": "", "Description": "Frozen, composite fish tissue samples were dried with either a Blue (brand) MO1140A drying |oven or a Labconco Freezone 6 Console freeze-drier. Samples were ground to a powder form using a Rinn-Crescent Wig-L-Bug amalgamator. Samples were then weighed using a Sartorius SC-2 microbalance and packaged in Costech Analytical 3.5 x 5 mm pressed tin capsules.", "LastChangeDate": "2009-10-30T09:12:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "18", "Identifier": "GRE:FishTis-Lipid", "Context": "EMAP_GRE", "Name": "Fish tissue: Prep for lipid analyses", "QualifierType": "", "Description": "Grind wet tissue sample (minimum of 8 g from many small or 3-5 large fish) in glass mortar w\25 g baked sodium sulfate; dry 1 hr. Extract samples w\methylene chloride and hexane using Dionex ASE-200 Accelerated Solvent Extractor. Concentrate ASE extracts to 3 mL using an N-EVAP 111 nitrogen evaporator w\50 deg C water bath. Dry (remove water) concentrated extract; use glass chromatography column; concentrate again. Use hexane to bring to 10mL volume. Use 5mL for lipid analysis.", "LastChangeDate": "2009-09-01T09:55:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "12", "Identifier": "GRE:FishTis-Org", "Context": "EMAP_GRE", "Name": "Fish tissue: Prep for organic analyses", "QualifierType": "", "Description": "Grind wet tissue sample (minimum of 8 g from many small or 3-5 large fish) in clean glass mortar w\25 g baked sodium sulfate; dry 1 hr. Reduce sample if > 50% water. Extract samples w\methylene chloride and hexane using Dionex ASE-200 Accelerated Solvent Extractor. Concentrate ASE extracts to about 3 mL using an N-EVAP 111 nitrogen evaporator w\50 deg C water bath. Dry (remove water) concentrated extract using glass chromatography column; concentrate again. Use hexane to bring to 10mL volume.", "LastChangeDate": "2009-09-01T09:55:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1748", "Identifier": "300.0(PREP)", "Context": "21FLACEP", "Name": "Fluorides by ion chromatography (EPA) (Preparation)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:09:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1821", "Identifier": "MIDN_UVA_FRACTIONATE", "Context": "11NPSWRD_WQX", "Name": "Fractionation with ion-exchange resin", "QualifierType": "", "Description": "An aliquot prepared and measured for total monomeric aluminum is fractionated by passing through a cation exchange resin to remove inorganic monomeric aluminum before analysis for organic monmeric aluminum. The fractionated volume is immediately analyzed. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2019-11-01T11:29:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60920", "Identifier": "UVA_FRACTIONATE", "Context": "11NPSWRD_WQX", "Name": "Fractionation with ion-exchange resin", "QualifierType": "", "Description": "An aliquot prepared and measured for total monomeric aluminum is fractionated by passing through a cation exchange resin to remove inorganic monomeric aluminum before analysis for organic monmeric aluminum. The fractionated volume is immediately analyzed. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2024-02-09T22:34:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2102", "Identifier": "564", "Context": "564", "Name": "GAMMA-BHC (LINDANE)", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1089", "Identifier": "GCMS_SIM", "Context": "EPA_GLNPO", "Name": "GC\MS Selective Ion Monitoring", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:23:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1328", "Identifier": "alpha coefficient A", "Context": "WQXTEST", "Name": "GKM Lab Prep Method", "QualifierType": "", "Description": "", "LastChangeDate": "2022-11-29T14:38:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2754", "Identifier": "GKM_Lab_Prep", "Context": "WQXTEST", "Name": "GKM Lab Prep Method", "QualifierType": "", "Description": "", "LastChangeDate": "2017-06-13T14:59:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1058", "Identifier": "Clarkson-Dx", "Context": "EPA_GLNPO", "Name": "GLFMSP Dioxins", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1268", "Identifier": "Oswego-Dx", "Context": "EPA_GLNPO", "Name": "GLFMSP Dioxins", "QualifierType": "", "Description": "", "LastChangeDate": "2020-07-10T17:14:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1808", "Identifier": "GOGA_L1_SPREP", "Context": "11NPSWRD", "Name": "GOGA Level I Lab Sediment Sample Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-12T15:38:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1809", "Identifier": "GOGA_L1_WPREP", "Context": "11NPSWRD", "Name": "GOGA Level I Lab Water Sample Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-12T15:38:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2144", "Identifier": "F00065B", "Context": "F00065B", "Name": "Gage Reading #2****", "QualifierType": "Routine Sampling", "Description": "", "LastChangeDate": "2014-11-20T15:33:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2143", "Identifier": "F00065", "Context": "F00065", "Name": "Gage Reading****", "QualifierType": "Routine Sampling", "Description": "", "LastChangeDate": "2021-08-19T08:27:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1090", "Identifier": "GC_FID", "Context": "EPA_GLNPO", "Name": "Gas chromatography with flame ionization detector", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3355", "Identifier": "Gen Prep", "Context": "21FLBROW", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-08T09:34:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2770", "Identifier": "Gen Prep", "Context": "21FLDELT", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-16T10:13:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33328", "Identifier": "Gen Prep", "Context": "21FLGTM", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-20T10:47:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "49037", "Identifier": "Gen Prep", "Context": "21FLMRC", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T10:10:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60945", "Identifier": "Gen Prep", "Context": "21FLSABR", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-28T13:34:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "49038", "Identifier": "Gen Prep", "Context": "21FLORAN", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-15T11:21:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2753", "Identifier": "Gen Prep", "Context": "WQXTEST", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2017-10-29T17:10:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60935", "Identifier": "Gen Prep", "Context": "21FLHESD", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-22T16:55:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1740", "Identifier": "Gen Prep", "Context": "CAPECRD", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-05T12:42:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60771", "Identifier": "Gen Prep", "Context": "21FLACEP", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-06T15:02:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2496", "Identifier": "Gen Prep", "Context": "21FLTBW", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-05T08:44:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2562", "Identifier": "Gen Prep", "Context": "21FLSMRC", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-31T11:46:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2259", "Identifier": "Gen Prep", "Context": "21FLNAPL", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T10:26:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1932", "Identifier": "Gen Prep", "Context": "21FLSEM", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-29T12:45:22 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2659", "Identifier": "Gen Prep", "Context": "21FLCONB", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2023-02-17T15:47:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2655", "Identifier": "Gen Prep", "Context": "21FLCOAB", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-01-31T10:40:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2787", "Identifier": "Gen Prep", "Context": "21FLCOSP", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-15T14:05:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3377", "Identifier": "Gen Prep", "Context": "21FLPBCH", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2023-01-25T12:10:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60946", "Identifier": "Gen Prep", "Context": "21FLVOE", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-04T10:11:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1505", "Identifier": "Gen Prep", "Context": "21FLJXWQ", "Name": "Gen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-23T13:47:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation 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AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60969", "Identifier": "General Preparation TSS", "Context": "BVR", "Name": "General Preparation TSS", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-01T18:52:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60917", "Identifier": "GenPREP", "Context": "POARCHCRK_WQX", "Name": "General Preparation for Eurofins Labs", "QualifierType": "", "Description": "", "LastChangeDate": "2024-01-30T16:40:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2776", "Identifier": "GEN PREP", "Context": "21FLCONS", "Name": "General Preperation", "QualifierType": "", "Description": "", "LastChangeDate": "2013-08-27T12:59:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation 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"Context": "EPA_GLNPO", "Name": "Graphite Carbon Black", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1091", "Identifier": "GLFMP-std", "Context": "EPA_GLNPO", "Name": "Great Lakes Fish Monitoring Program - standard procedure", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2594", "Identifier": "GREENANLY", "Context": "UTEMTN", "Name": "Green Analytical QA Data", "QualifierType": "", "Description": "", "LastChangeDate": "2026-02-04T15:46:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1815", "Identifier": "GUMO0010_GUMO_GREEN_", "Context": "GUMO0010", "Name": "Green's Aquatic Macroinvertebrates Sample Preparation and Modified Rapid Bioassessment Protocol Subsampling", "QualifierType": "", "Description": "In Green's laboratory the samples were washed through a standard soil sieve set to remove detritus. Material left on the sieves with standard mesh sizes of 230, 120, and 60 was placed in a gridded pan and subsampled using Rapid Bioassessment Protocol established by the EPA (Plafkin, J.L., M.T. Barbour, K.D. Porter, S.K. Gross, and R.M. Hughes, 1989. Rapid Bioassessment Protocols for use in Stream and Rivers: Benthic Macroinvertebrates and Fish, EPA\444\4-89-001. U.S. Environmental Protection Agency, Washington, D.C. 1 vol.). The subsampling involved spreading the washed samples evenly over the gridded pan, then randomly picking cells using random number tables. All invertebrates were removed from the cell before going to the next randomly picked cell. This procedure was completed until 100-200 individuals were removed or the last cell was emptied. This usually resulted in somewhere between 90 to 300 individuals being sampled. Green, T.M.; 1993; A Distributional Analysis of Aquatic Invertebrates of McKittrick Creek of the Guadalupe Mountains National Park, Texas; Zoology Dept., Texas A & M University, College Station, TX; 276 pp.", "LastChangeDate": "2017-02-01T16:14:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2153", "Identifier": "GALPHA", "Context": "GALPHA", "Name": "Gross Alpha Activity", "QualifierType": "Routine Sampling", "Description": "RAD99", "LastChangeDate": "2026-08-05T10:21:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2154", "Identifier": "GBETA", "Context": "GBETA", "Name": "Gross Beta Activity", "QualifierType": "Routine Sampling", "Description": "RAD99", "LastChangeDate": "2026-08-05T10:21:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1966", "Identifier": "00900", "Context": "00900", "Name": "HARDNESS, TOTAL (CALCULATED)", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2693", "Identifier": "00900", "Context": "00900", "Name": "HARDNESS, TOTAL (CALCULATED)", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1967", "Identifier": "00900A", "Context": "00900A", "Name": "HARDNESS, TOTAL AS CACO3", "QualifierType": "Ambient Sampling", "Description": "016", "LastChangeDate": "2014-11-20T15:32:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1301", "Identifier": "U-02-RC", "Context": "EPA_GLNPO", "Name": "HASL-300 U-02-RC", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59727", "Identifier": "HEALTH", "Context": "WQXTEST", "Name": "HEALTH", "QualifierType": "", "Description": "", "LastChangeDate": "2023-07-06T10:37:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2052", "Identifier": "298", "Context": "298", "Name": "HEPTACHLOR", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2099", "Identifier": "551", "Context": "551", "Name": "HEPTACHLOR EPOXIDE", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2138", "Identifier": "95", "Context": "95", "Name": "HEXACHLOROBUTADIENE", "QualifierType": "Routine Sampling", "Description": "VOAWW", "LastChangeDate": "2021-08-19T09:42:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "13", "Identifier": "GRE:HF\HNO3", "Context": "EMAP_GRE", "Name": "HF\HNO3", "QualifierType": "", "Description": "Total digestion using Hydrofluoric acid\Nitric acid (HF\HNO3) in an open beaker on a hot plate.", "LastChangeDate": "2009-08-13T12:41:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1161", "Identifier": "LMMB011", "Context": "EPA_GLNPO", "Name": "HOC Sampling Media Preparation and Handling", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60971", "Identifier": "HPLC", "Context": "SANPASQUAL", "Name": "HPLC", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-03T16:51:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1816", "Identifier": "GUMO_HEAL_DIL", "Context": "GUMO0004", "Name": "Hall Environmental Analysis Lab's Sample Dilution Process", "QualifierType": "", "Description": "For the Park's WQ samples the only information available on Hall Environmental Analysis Lab's sample dilution process was: samples diluted due to matrix. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2017-02-01T16:17:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2794", "Identifier": "HALLLAB", "Context": "PUEBLOISLETA", "Name": "Hall Lab Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-27T04:46:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "49055", "Identifier": "HallLabPrep", "Context": "SANDIAWQ_WQX", "Name": "Hall Sample Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2024-11-18T19:09:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61070", "Identifier": "Hall\EurofinsLabPrep", "Context": "SANDIAWQ_WQX", "Name": "Hall Sample Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-04T10:08:02 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"QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:02:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1376", "Identifier": "8150-P", "Context": "USEPA", "Name": "Herbicide Preparation Portion 8150", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-19T10:42:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1991", "Identifier": "01032A", "Context": "01032A", "Name": "Hexavalent Chromium-Ion Chromatograph", "QualifierType": "Routine Sampling", "Description": "020", "LastChangeDate": "2014-11-20T16:31:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3247", "Identifier": "Hot Block Digestion", "Context": "US EPA Region 5 Chicago Regional Laboratory", "Name": "Hot Block Digestion", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-13T14:30:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2557", "Identifier": "Hot Block Digestion", "Context": "USIOUX_WQX", "Name": "Hot Block Digestion", "QualifierType": "", "Description": "", "LastChangeDate": "2021-01-20T16:18:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1856", "Identifier": "NPS_SART_EXTRCT", "Context": "11NPSWRD", "Name": "Hot Ethanol Extraction for Chlorophyll and Pheophytin by Sartory", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T19:04:22 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2267", "Identifier": "USEPA 3050", "Context": "USEPA", "Name": "Hot Plate Assisted Acid Digestion of Sediments, Sludges, Soils, and Oils", "QualifierType": "", "Description": "", "LastChangeDate": "2010-04-01T11:41:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2510", "Identifier": "USEPA 3050", "Context": "USEPA", "Name": "Hot Plate Assisted Acid Digestion of Sediments, Sludges, Soils, and Oils", "QualifierType": "", "Description": "", "LastChangeDate": "2014-02-10T13:33:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61718", "Identifier": "WRST_HOTPLTDIG", "Context": "11NPSWRD_WQX", "Name": "Hot-Plate Digestion", "QualifierType": "", "Description": "Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2026-05-14T13:58:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1811", "Identifier": "GRSM_ICPREP", "Context": "11NPSWRD_WQX", "Name": "IC Preparation", "QualifierType": "", "Description": "Filter samples (0.45um) and store at 4 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"LastChangeDate": "2018-12-06T13:14:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1934", "Identifier": "00308", "Context": "00308", "Name": "Inhibited Biochemical Oxygen Demand 20 day", "QualifierType": "Routine Sampling", "Description": "031", "LastChangeDate": "2014-11-20T16:30:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60986", "Identifier": "InnerBasinLLC", "Context": "YPIT_WQX", "Name": "Inner Basin Environmental, LLC - Lab Prep Method", "QualifierType": "", "Description": "", "LastChangeDate": "2024-11-13T13:30:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2203", "Identifier": "EPA300.0", "Context": "21FLORAN", "Name": "Inorganic Anions by Ion Chromatography", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:13 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"QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:09:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1259", "Identifier": "L_ACT", "Context": "EPA_GLNPO", "Name": "L_ACT", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2774", "Identifier": "HALLLAB", "Context": "SANTACLARAPBLO", "Name": "Lab Preparation for Hall Environmental", "QualifierType": "", "Description": "", "LastChangeDate": "2026-06-24T05:00:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2173", "Identifier": "LSP-1", "Context": "21FLSARA", "Name": "Lab Procedure", "QualifierType": "", "Description": "", "LastChangeDate": "2019-01-25T11:09:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1015", "Identifier": "Lab Sample", "Context": "WIDNR_WQX", "Name": "Lab Sample", "QualifierType": "", "Description": "Lab Sample Preparation Method for the WI LIMS Database", "LastChangeDate": "2015-09-15T11:55:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1013", "Identifier": "Lab Sample Prep", "Context": "KNRD_WQX", "Name": "Lab Sample Prep", "QualifierType": "", "Description": "Standard Prep. Procedures according to Laboratory Protocols.", "LastChangeDate": "2014-06-25T17:38:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2244", "Identifier": "SOP-BB02", "Context": "21FLCHAR", "Name": "Lab proc.", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-16T13:35:22 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1346", "Identifier": "dilution_id3", "Context": "WQXTEST", "Name": "Lab sample Prep (0 or more)", "QualifierType": "", "Description": "", "LastChangeDate": "2019-06-28T14:12:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1348", "Identifier": "dilution_id1", "Context": "WQXTEST", "Name": "Lab sample Prep (0 or more)", "QualifierType": "", "Description": "", "LastChangeDate": "2019-06-28T14:12:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1347", "Identifier": "dilution_id2", "Context": "WQXTEST", "Name": "Lab sample Prep (0 or more)", "QualifierType": "", "Description": "", "LastChangeDate": "2019-06-28T14:12:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2566", "Identifier": "BABCOCK", "Context": "MORONGO1_WQX", "Name": "Lab sample preparation methods for Babcock Laboratories", "QualifierType": "", "Description": "", "LastChangeDate": "2026-08-12T15:43:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2777", "Identifier": "NM State Lab", "Context": "PUEBLOJEMEZ", "Name": "Laboratory Prep for NM State Lab", "QualifierType": "", "Description": "", "LastChangeDate": "2026-02-06T08:11:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2595", "Identifier": "Laboratory SCM QAPP", "Context": "PUEBLOOFTESUQUE", "Name": "Laboratory SCM QAPP", "QualifierType": "", "Description": "Prep Method for Laboratory Samples according to our QAPP", "LastChangeDate": "2022-01-11T09:23:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1260", "Identifier": "Lachat", "Context": "EPA_GLNPO", "Name": "Lachat", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1176", "Identifier": "LMMB026", "Context": "EPA_GLNPO", "Name": "Lake Trout and Forage Fish Sampling", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2651", "Identifier": "Lab Sample Prep", "Context": "POLSWATER_WQX", "Name": "Lap Sample Preparation Method", "QualifierType": "", "Description": "Lap Sample Preparation Method according to our approved QAPP", "LastChangeDate": "2026-03-25T11:51:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1037", "Identifier": "CDL-10D-AFDW", "Context": "EPA_GLNPO", "Name": "Larvae Chironomus Dilutus, 10 day AFDW", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1038", "Identifier": "CDL-10D-Surv", "Context": "EPA_GLNPO", "Name": "Larvae Chironomus Dilutus, 10 day Survival", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1039", "Identifier": "CDL-10D-Wt", "Context": "EPA_GLNPO", "Name": "Larvae Chironomus Dilutus, 10 day Weight", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1040", "Identifier": "CDL-20D-AFDW", "Context": "EPA_GLNPO", "Name": "Larvae Chironomus Dilutus, 20 day AFDW", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1042", "Identifier": "CDL20DAFDW:Z", "Context": "EPA_GLNPO", "Name": "Larvae Chironomus Dilutus, 20 day AFDW, Zeolite", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1041", "Identifier": "CDL-20D-Surv", "Context": "EPA_GLNPO", "Name": "Larvae Chironomus Dilutus, 20 day Survival", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1043", "Identifier": "CDL20DSurv:Z", "Context": "EPA_GLNPO", "Name": "Larvae Chironomus Dilutus, 20 day Survival, Zeolite", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28129", "Identifier": "71936", "Context": "71936", "Name": "Lead in fish, wet weight*", "QualifierType": "Routine Sampling", "Description": "059", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1239", "Identifier": "LMMB084", "Context": "EPA_GLNPO", "Name": "Lead-210 in Sediments and Soils", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1296", "Identifier": "SZC-L", "Context": "EPA_GLNPO", "Name": "Length", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1101", "Identifier": "L-ACT", "Context": "EPA_GLNPO", "Name": "Length actual", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1102", "Identifier": "L-REC", "Context": "EPA_GLNPO", "Name": "Length reconstructed", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2535", "Identifier": "Lipid by EPA 3545", "Context": "Lipid by EPA 3545", "Name": "Lipid by EPA 3545", "QualifierType": "", "Description": "", "LastChangeDate": "2026-01-16T00:17:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1149", "Identifier": "LIPID_GRAV", "Context": "EPA_GLNPO", "Name": "Lipids (gravimetric)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T11:23:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61085", "Identifier": "Lloyd Kahn", "Context": "Pace Analytical (Wisconsin)", "Name": "Lloyd Kahn", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-06T08:28:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1256", "Identifier": "LS-L", "Context": "EPA_GLNPO", "Name": "Location", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2139", "Identifier": "99020", "Context": "99020", "Name": "Low Bromide by IC", "QualifierType": "Routine Sampling", "Description": "015", "LastChangeDate": "2026-08-05T10:22:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "25337", "Identifier": "01147LH", "Context": "01147LH", "Name": "Low Level Selenium (4.0 ug\L)", "QualifierType": "Routine Sampling", "Description": "087", "LastChangeDate": "2025-11-18T08:52:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "23115", "Identifier": "00937L", "Context": "00937L", "Name": "Low Level Total Potassium (RL; 500 ug\L)", "QualifierType": "Routine Sampling", "Description": "997", "LastChangeDate": "2025-11-17T09:06:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2662", "Identifier": "M200.2 ICP", "Context": "ARSG", "Name": "M200.2 ICP", "QualifierType": "", "Description": "M200.2 ICP", "LastChangeDate": "2016-03-23T10:11:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2663", "Identifier": "M200.2 ICP-MS", "Context": "ARSG", "Name": "M200.2 ICP-MS", "QualifierType": "", "Description": "M200.2 ICP-MS", "LastChangeDate": "2016-03-23T10:11:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2824", "Identifier": "M200.2 ICP-MS", "Context": "UWP", "Name": "M200.2 ICP-MS", "QualifierType": "", "Description": "M200.2 ICP-MS", "LastChangeDate": "2018-05-31T19:51:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3015", "Identifier": "M200.2 ICP-MS", "Context": "M200.2 ICP-MS", "Name": "M200.2 ICP-MS", "QualifierType": "", "Description": "", "LastChangeDate": "2019-02-12T11:01:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37074", "Identifier": "MACA_RLW_FAUNALP", "Context": "11NPSWRD_WQX", "Name": "MACA Biologic Faunal Preparation Using Panning and Filtering by Whitman", "QualifierType": "", "Description": "Organisms were separated from the sand by Whitman using a panning technique (Hynes, H.B.N., 1971. The ecology of Running Waters. University of Toronto Press, Toronto, Ontario, Canada. 555 pp.). Samples were placed in a small, plastic pan. The contents were swirled with approximately 100 milliliters of pre-filtered tap water for 1 minute. The water was poured through 63-micron bolting cloth. After repeating this procedure 3 times the retained elutriant was washed into a Whirl-Pak bag and preserved with 5% formaldehyde. Whitman, R.L.; 1991; Correspondence from David A. Mihalic, Superintendent, Mammoth Cave National Park, to George Gregory, Superintendent, Indiana Dune National Lakeshore, dated March 29, 1991, about Dr. Richard L. Whitman visiting Mammoth Cave, incuding a 63-page draft report; Unpublished report; 67 pp.", "LastChangeDate": "2022-10-26T09:59:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37076", "Identifier": "MACA_RLW_DRIFTP", "Context": "11NPSWRD_WQX", "Name": "MACA Biologic Faunal Preparation of Washing-Drift Samples by Whitman", "QualifierType": "", "Description": "Whitman washed the retained elutriant on the 63-micron bolting cloth into a Whirl-Pak bag and preserved with 5% formaldehyde for biologic samples collected at Cascade Falls. Whitman, R.L.; 1991; Correspondence from David A. Mihalic, Superintendent, Mammoth Cave National Park, to George Gregory, Superintendent, Indiana Dune National Lakeshore, dated March 29, 1991, about Dr. Richard L. Whitman visiting Mammoth Cave, incuding a 63-page draft report; Unpublished report; 67 pp.", "LastChangeDate": "2022-10-26T09:58:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37077", "Identifier": "MACA_TEA_PREPCAMG", "Context": "11NPSWRD_WQX", "Name": "MACA Calcium and Magnesium Water Sample Prep by Thrailkill", "QualifierType": "", "Description": "For the calcium and magnesium water samples Thrailkill used a solution of 10 mM sodium ethylenediaminetetraacetic acid, Na2(EDTA), and 1mM sodium hydroxide (NaOH) to control interferences from sulfate, phosphate, chloride, and nitrate in the calcium and magnesium samples analyzed by atomic absorption spectroscopy. Thrailkill, J.V., et al.; 1969; Solution Geochemistry of the Water of Limestone Terrains. University of Kentucky Water Resources Institute Research Report No. 19, Completion Report for Project Number A-009-KY; Agreement Number 14-01-001-911 (May 1966 - June 1969), dated July 1969; University of Kentucky Water Resources Institute Research, Lexington, KY; 132 pp.", "LastChangeDate": "2022-10-26T10:00:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37079", "Identifier": "MACA_BARR76_CONC", "Context": "11NPSWRD_WQX", "Name": "MACA Evaporative Concentration of Water Samples by Barr", "QualifierType": "", "Description": "Water samples from Barr were subject to evaporative concentration to 0.1 of their original volumes before total organic carbon (TOC) analysis. Barr, T.C.; 1976; Ecological Effects of Water Pollutants in Mammoth Cave: Final Technical Report to the National Park Service for Contract No. CX500050204, June 1976, revised December 1976; School of Biological Sciences, University of Kentucky, Lexington, KY; 45 pp.", "LastChangeDate": "2022-10-26T09:37:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37073", "Identifier": "MACA_Q&R_CONC2", "Context": "11NPSWRD_WQX", "Name": "MACA Hidden Cave-South Branch Water Sample Concentration by Quinlan &Rowe", "QualifierType": "", "Description": "A 250 ml portion of Hidden Cave-South Branch samples collected by Quinlan and Rowe were concentrated by slow evaporation to 5:1 and analyzed for heavy metals. Quinlan, J.F., D.R. Rowe; 1977; Hydrology and Water Quality in the Central Kentucky Karst: Phase I. Research Report no. 101. January 1977; Water Resources Research Institute, University of Kentucky, Lexington, KY; 93 pp.", "LastChangeDate": "2022-10-26T09:58:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37075", "Identifier": "MACA_RLW_SEDPREP", "Context": "11NPSWRD_WQX", "Name": "MACA Sediment Preparation Using Pulverizing, Stirring, and Drying by Whitman", "QualifierType": "", "Description": "In the lab, sediments were pulverized by Whitman using a mortar and pestle, and homogenized by stirring. Samples were oven-dried at 105°C for 24 hours, cooled, and dried in a desiccator. Whitman, R.L.; 1991; Correspondence from David A. Mihalic, Superintendent, Mammoth Cave National Park, to George Gregory, Superintendent, Indiana Dune National Lakeshore, dated March 29, 1991, about Dr. Richard L. Whitman visiting Mammoth Cave, incuding a 63-page draft report; Unpublished report; 67 pp.", "LastChangeDate": "2022-10-26T09:59:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37078", "Identifier": "MACA_TEA_PREPNA", "Context": "11NPSWRD_WQX", "Name": "MACA Sodium Water Sample Prep by Thrailkill", "QualifierType": "", "Description": "In the water samples Thrailkill found potassium and magnesium interfered slightly with sodium readings from atomic absorption spectroscopy. This interference was eliminated by adding 100 parts per million or more of potassium to the sodium samples. Thrailkill, J.V., et al.; 1969; Solution Geochemistry of the Water of Limestone Terrains. University of Kentucky Water Resources Institute Research Report No. 19, Completion Report for Project Number A-009-KY; Agreement Number 14-01-001-911 (May 1966 - June 1969), dated July 1969; University of Kentucky Water Resources Institute Research, Lexington, KY; 132 pp.", "LastChangeDate": "2022-10-26T10:00:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37072", "Identifier": "MACA_Q&R_DIGUN", "Context": "11NPSWRD_WQX", "Name": "MACA Unknown Digestion of Wastewater Treatment Plant Effluent & Influent Samples By Quinlan & Rowe", "QualifierType": "", "Description": "Wastewater treatment plant effluent and influent samples collected by Quinlan & Rowe were digested, but not concentrated, prior to heavy metal analysis. The details of the digestion process was not included in the source. Quinlan, J.F., D.R. Rowe; 1977; Hydrology and Water Quality in the Central Kentucky Karst: Phase I. Research Report no. 101. January 1977; Water Resources Research Institute, University of Kentucky, Lexington, KY; 93 pp.", "LastChangeDate": "2022-10-26T09:58:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37071", "Identifier": "MACA_Q&R_CONC1", "Context": "11NPSWRD_WQX", "Name": "MACA Water Sample Concentration for Heavy Metals by Quinlan & Rowe", "QualifierType": "", "Description": "A 500 ml portion of all spring, river, and well samples collected by Quinlan and Rowe were concentrated by slow evaporation to 10:1 and analyzed for heavy metals. Quinlan, J.F., D.R. Rowe; 1977; Hydrology and Water Quality in the Central Kentucky Karst: Phase I. Research Report no. 101. January 1977; Water Resources Research Institute, University of Kentucky, Lexington, KY; 93 pp.", "LastChangeDate": "2022-10-26T09:58:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1970", "Identifier": "00925A", "Context": "00925A", "Name": "MAGNESIUM, DISSOLVED (WATER & WASTE) BY ICP", "QualifierType": "Routine Sampling", "Description": "015", "LastChangeDate": "2026-08-05T10:22:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2696", "Identifier": "00925A", "Context": "00925A", "Name": "MAGNESIUM, DISSOLVED (WATER & WASTE) BY ICP", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2697", "Identifier": "00927A", "Context": "00927A", "Name": "MAGNESIUM, TOTAL (WATER & WASTE) BY ICP", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1971", "Identifier": "00927A", "Context": "00927A", "Name": "MAGNESIUM, TOTAL (WATER & WASTE) BY ICP", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2005", "Identifier": "01056H", "Context": "01056H", "Name": "MANGANESE, DISSOLVED (WATER & WASTE) BY ICPMS", "QualifierType": "Routine Sampling", "Description": "015", "LastChangeDate": "2026-08-05T10:22:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2715", "Identifier": "01056H", "Context": "01056H", "Name": "MANGANESE, DISSOLVED (WATER & WASTE) BY ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2004", "Identifier": "01056A", "Context": "01056A", "Name": "MANGANESE, DISSOLVED (WATER & WASTE) BY ICP", "QualifierType": "Routine Sampling", "Description": "087", "LastChangeDate": "2026-08-05T10:22:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28145", "Identifier": "01123A", "Context": "01123A", "Name": "MANGANESE, RECOVERABLE (WATER & WASTE) BY ICP", "QualifierType": "Routine Sampling", "Description": "086", "LastChangeDate": "2021-08-16T15:56:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28139", "Identifier": "01055Z", "Context": "01055Z", "Name": "MANGANESE, TOTAL (MINE DRAINAGE) BY ICP", "QualifierType": "Routine Sampling", "Description": "757", "LastChangeDate": "2021-08-18T11:28:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2713", "Identifier": "01055A", "Context": "01055A", "Name": "MANGANESE, TOTAL (WATER & WASTE) BY ICP", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2002", "Identifier": "01055A", "Context": "01055A", "Name": "MANGANESE, TOTAL (WATER & WASTE) BY ICP", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2714", "Identifier": "01055H", "Context": "01055H", "Name": "MANGANESE, TOTAL (WATER & WASTE) BY ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2003", "Identifier": "01055H", "Context": "01055H", "Name": "MANGANESE, TOTAL (WATER & WASTE) BY ICPMS", "QualifierType": "Routine Sampling", "Description": "010", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2126", "Identifier": "71890X", "Context": "71890X", "Name": "MERCURY, DISSOLVED", "QualifierType": "Routine Sampling", "Description": "020", "LastChangeDate": "2014-11-20T16:14:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2125", "Identifier": "71890I", "Context": "71890I", "Name": "MERCURY, DISSOLVED", "QualifierType": "Routine Sampling", "Description": "997", "LastChangeDate": "2025-11-17T09:06:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2129", "Identifier": "71901I", "Context": "71901I", "Name": "MERCURY, RECOVERABLE", "QualifierType": "Routine Sampling", "Description": "011", "LastChangeDate": "2014-11-20T16:27:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2128", "Identifier": "71900X", "Context": "71900X", "Name": "MERCURY, TOTAL", "QualifierType": "Routine Sampling", "Description": "083", "LastChangeDate": "2021-08-19T09:42:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2127", "Identifier": "71900I", "Context": "71900I", "Name": "MERCURY, TOTAL", "QualifierType": "Routine Sampling", "Description": "083", "LastChangeDate": "2026-08-05T10:22:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1350", "Identifier": "EPA 7473", "Context": "21MSWQ_WQX", "Name": "METALS BY DMA", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-24T13:26:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1336", "Identifier": "METHOD", "Context": "Pace Analytical (Indy)", "Name": "METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2023-08-22T10:33:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37040", "Identifier": "METHOD", "Context": "Pace Analytical (Indy)", "Name": "METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T18:05:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33587", "Identifier": "METHOD", "Context": "METHOD", "Name": "METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2022-04-14T14:13:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2806", "Identifier": "METHOD", "Context": "R10BOOMSNUB", "Name": "METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T13:04:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36386", "Identifier": "METHOD", "Context": "Pace Analytical (Indy)", "Name": "METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:33:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2421", "Identifier": "METHOD", "Context": "Pace Analytical (Indy)", "Name": "METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2026-06-30T13:40:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1421", "Identifier": "METHOD", "Context": "21FLSJWM", "Name": "METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-02T17:32:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2029", "Identifier": "111", "Context": "111", "Name": "METHOXYCHLOR", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2059", "Identifier": "38260", "Context": "38260", "Name": "METHYLENE BLUE ACTIVE SUBSTANCE", "QualifierType": "Routine Sampling", "Description": "015", "LastChangeDate": "2014-11-20T16:32:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2790", "Identifier": "MICRO_DEFAULT", "Context": "21FLCOSP", "Name": "MICRO DEFAULT PREP", "QualifierType": "", "Description": "", "LastChangeDate": "2018-02-23T16:32:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1498", "Identifier": "MICRO-MF", "Context": "21FLBFA", "Name": "MICRO-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-20T11:43:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1439", "Identifier": "MICRO-MF", "Context": "21FLCMP", "Name": "MICRO-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-21T11:09:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1566", "Identifier": "MICRO-QT", "Context": "21FLPNS", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T14:29:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1452", "Identifier": "MICRO-QT", "Context": "21FLA", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-03T11:46:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2243", "Identifier": "MICRO-QT", "Context": "21FLCHAR", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-08T15:09:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1591", "Identifier": "MICRO-QT", "Context": "21FLWQA", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-05T10:38:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2484", "Identifier": "MICRO-QT", "Context": "21FLWQSP", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-24T10:38:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3081", "Identifier": "MICRO-QT", "Context": "21FLTLHR", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-04T08:34:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1643", "Identifier": "MICRO-QT", "Context": "21FLTPA", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-07T09:26:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1618", "Identifier": "MICRO-QT", "Context": "21FLCEN", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-07T07:35:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1674", "Identifier": "MICRO-QT", "Context": "21FLWPB", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-05T09:25:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1481", "Identifier": "MICRO-QT", "Context": "21FLGW", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-07T08:44:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1705", "Identifier": "MICRO-QT", "Context": "21FLFTM", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-20T10:01:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1506", "Identifier": "MICRO-QT", "Context": "21FLJXWQ", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2021-02-11T13:44:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2324", "Identifier": "MICRO-QT", "Context": "21FLGTM", "Name": "MICRO-QT", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-20T10:47:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "40", "Identifier": "MIDNITE_2", "Context": "Midnite_2", "Name": "MIDNITE_2", "QualifierType": "", "Description": "Midnite Mine sample miscellaneous lab sample preparation methods", "LastChangeDate": "2026-07-02T18:22:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2112", "Identifier": "592", "Context": "592", "Name": "MIREX", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61086", "Identifier": "MST", "Context": "AKDECWQ", "Name": "MST Preparation", "QualifierType": "", "Description": "The Cycle Threshold (Ct) is the number of cycles used to reproduce the target DNA to a detectable level. Ct < 30 = high target abundance; 35 < Ct > 30 = moderate abundance; Ct > 35 = low abundance, near detection limit", "LastChangeDate": "2026-06-24T14:07:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2644", "Identifier": "MULTIPROBE", "Context": "LFVC", "Name": "MULTIPROBE", "QualifierType": "", "Description": "MULTIPROBE: may include Quanta, YSI or other modern multi-parameter probes. Maintained and calibrated per manufacturer's instructions.", "LastChangeDate": "2016-07-01T15:05:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2558", "Identifier": "MVTL", "Context": "USIOUX_WQX", "Name": "MVTL Lab Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2024-04-16T12:06:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2593", "Identifier": "MVTL", "Context": "TURTLEMT", "Name": "MVTL Labs", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T23:34:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1337", "Identifier": "SM4500-N-ORG-B", "Context": "APHA", "Name": "Macro Kjeldahl Digestion Method", "QualifierType": "", "Description": "", "LastChangeDate": "2017-09-14T11:33:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1402", "Identifier": "Subsample Factor", "Context": "MEDEP_WQX", "Name": "Macroinvertebrate Subsample Factor", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-06T10:59:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61708", "Identifier": "SPE", "Context": "PIIC_WQX", "Name": "Maine Laboratories", "QualifierType": "", "Description": "", "LastChangeDate": "2026-05-09T06:29:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1915", "Identifier": "WICR_MANTEI_SED", "Context": "11NPSWRD", "Name": "Mantei Sediment Preparation by Drying, Disaggregation, Sieving, Nitric Acid Digestion, and Centrifugation", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T19:16:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3060", "Identifier": "UVAVTSSS_UVA_MANUAL_", "Context": "UVAVTSSS_WQX", "Name": "Manual Fractionation with Cation-Exchange Resin", "QualifierType": "", "Description": "Sample is fractionated manually by passing through a cation-exchange resin to remove inorganic monomeric aluminum before analysis for organic monomeric aluminum. Beginning with samples collected in calendar year 2013: Cation exchange resin is 1% hydrogen form\99% sodium form Amberlite IR-120+ for all samples. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2020-04-09T18:13:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1909", "Identifier": "UVA_MANUAL_FRACTION", "Context": "11NPSWRD_WQX", "Name": "Manual Fractionation with Cation-Exchange Resin", "QualifierType": "", "Description": "Sample is fractionated manually by passing through a cation-exchange resin to remove inorganic monomeric aluminum before analysis for organic monomeric aluminum. Beginning with samples collected in calendar year 2013: Cation exchange resin is 1% hydrogen form\99% sodium form Amberlite IR-120+ for all samples. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-12-16T13:58:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33333", "Identifier": "UVA_MANUAL_FRACTION", "Context": "UVAVTSSS_WQX", "Name": "Manual Fractionation with Cation-Exchange Resin", "QualifierType": "", "Description": "Sample is fractionated manually by passing through a cation-exchange resin to remove inorganic monomeric aluminum before analysis for organic monomeric aluminum. Beginning with samples collected in calendar year 2013: Cation exchange resin is 1% hydrogen form\99% sodium form Amberlite IR-120+ for all samples. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-01-25T15:48:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1871", "Identifier": "SAMA_MBP_INFAUNAL", "Context": "11NPSWRD_WQX", "Name": "Massachusetts Bays Program Infaunal Analyses", "QualifierType": "", "Description": "Macroinfauna (animals > 0.5 mm) were identified and enumerated from each of the three replicate, 0. l -m2 samples collected at each of the 12 Massachusetts\Cape Cod Bay stations. These data were used to characterize the infaunal assemblages at each of the stations and to provide a basis for identifying sites where high sediment contamination and\or toxicity are linked potentially to the presence of degraded benthic communities. All benthic samples were processed at Ruff Systematics in Solana Beach, California. Once samples were received in the laboratory, they were immediately transferred from 10 percent buffered formalin to 70 percent ethanol. Animals were separated from debris in each of the samples under a dissecting microscope. A biological stain (rose bengal) was added to facilitate sorting. Sorted specimens were identified to the lowest possible taxon, i.e., the species level wherever possible. As species were identified, and the number of individuals per each species recorded, they were placed back in 70 percent ethanol and archived permanently by species. A list of the numbers of individuals per each species was recorded for each replicate sample (Appendix B, Table B-13). Re-checks of sorted benthic material were performed on 10 percent of the infaunal samples (i.e., 4 of the 36 samples originally sorted) as a QA\QC measure. Per each batch of eight samples processed, one sample was re-checked for this purpose. If in this sample the sorter failed to remove at least 95 percent of the animals originally present, a second sample from this same batch of eight samples was re-checked. If this second sample also failed the QC, then all remaining samples in this same batch were re-checked as well. This same process was repeated for each batch of eight samples. Because a senior-level taxonomist performed the original sorts, the sorting accuracy was within the acceptable range in all cases. Taxonomic identifications were verified by comparing samples against archived voucher specimens available at Ruff Systematics. Hyland, J.L. and H. Costa; March 1995; Examining Linkages Between Contaminant Inputs and Their Impacts on Living Marine Resources of the Massachusetts Bay Ecosystem Through Application of the Sediment Quality Triad Method; Massachusetts Bay Program; 192p", "LastChangeDate": "2019-10-17T09:31:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1872", "Identifier": "SAMA_MBP_METALS", "Context": "11NPSWRD_WQX", "Name": "Massachusetts Bays Program Metals Analyses", "QualifierType": "", "Description": "Each sediment sample was thawed and carefully homogenized with a Teflon® or plastic mixing rod. One aliquot was removed for Hg analysis; another aliquot was removed for the analysis of remaining metals. An additional aliquot was removed for determination of moisture content to provide information for reporting metal concentrations on a per-dry­ weight-sediment basis. Sample preparation and analysis was based on standard procedures provided in EPA SW-846 (EPA 1986) and the EPA-Contract Laboratory Program (CLP) Statement of Work (EPA 1991) (see Table 2-4). Sample preparation followed Method 7471 (EPA 1986) for Hg and Method 3050 (EPA 1986) for all remaining metals. Both sample preparation methods basically consist of preparing an extract of the sediment by digesting the sample with concentrated acid under heat and then bringing the extract up to a specified volume with deionized water. Labware used in the digestion process was acid-washed and rinsed with double deionized water. Procedural blanks and replicate samples were prepared with each set of samples. Standard Reference Material #1646 also was prepared and analyzed. Potential matrix interferences were monitored carefully for all elements using the method of standard additions. Results of all QA\QC analyses were evaluated to ensure that they met the data quality objectives summarized in Table 2-6. Hyland, J.L. and H. Costa; March 1995; Examining Linkages Between Contaminant Inputs and Their Impacts on Living Marine Resources of the Massachusetts Bay Ecosystem Through Application of the Sediment Quality Triad Method; Massachusetts Bay Program; 192p", "LastChangeDate": "2019-10-17T09:31:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1331", "Identifier": "A-MAX", "Context": "EPA_GLNPO", "Name": "Maxillary Bone Evaluation", "QualifierType": "", "Description": "", "LastChangeDate": "2017-05-02T10:52:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59717", "Identifier": "GRTE_ECOLI_LAB", "Context": "11NPSWRD_WQX", "Name": "Membrane Filtration for Water Samples", "QualifierType": "", "Description": "Place a sterile filter onto a sterile filter holder. Using a sterile graduated cylinders and pipettes, measure an appropriate sample volume. Pour water sample into the reservoir funnel and draw the water through the filter using a vacuum pump. Rinse the funnel with several 20-30 mL volume of sterile rinse water. With sterile forceps, transfer the filter to a Petri plate containing a pad saturated with m-ColiBlue24 or an agar plate of m-ColiBlue24. Invert the plate and incubate at 35 deg C ± 0.5 deg C for 24 hours ± 2 hours. M. A. Grant; 1997; A new membrane filtration medium for simultaneous detection and enumeration of Escherichia coli and total coliforms; Applied and Environmental Microbiology; 63(9), 3526-3530", "LastChangeDate": "2026-03-17T14:10:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1606", "Identifier": "1631", "Context": "21FLCEN", "Name": "Mercury", "QualifierType": "", "Description": "", "LastChangeDate": "2014-08-20T12:51:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1925", "Identifier": "WRST_HGH2O", "Context": "11NPSWRD", "Name": "Mercury (II) Reduced in Solution to Elemental Mercury Gas with Hydroxylamine Hydrochloride and Stannous Chloride", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:28:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36997", "Identifier": "LMMB048", "Context": "WQXWEBTRAINING", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:49:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37060", "Identifier": "LMMB048", "Context": "WQXWEBTRAINING4", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:05:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1685", "Identifier": "245.1", "Context": "21FLFTM", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-20T16:07:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37018", "Identifier": "LMMB048", "Context": "WQXWEBTRAINING1", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T18:08:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37920", "Identifier": "LMMB048", "Context": "WQXWEBTRAINING7", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:07:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37462", "Identifier": "LMMB048", "Context": "WQXWEBTRAINING5", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:07:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "38374", "Identifier": "LMMB048", "Context": "WQXWEBTRAINING9", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:09:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1203", "Identifier": "LMMB048", "Context": "EPA_GLNPO", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "38372", "Identifier": "LMMB048", "Context": "WQXWEBTRAINING8", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:08:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37690", "Identifier": "LMMB048", "Context": "WQXWEBTRAINING6", "Name": "Mercury Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:07:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2536", "Identifier": "Mercury Digestion by", "Context": "Mercury Digestion by 245.1", "Name": "Mercury Digestion by 245.1", "QualifierType": "", "Description": "", "LastChangeDate": "2025-02-11T00:14:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "49058", "Identifier": "Mercury by EPA 1631", "Context": "Mercury by EPA 1631", "Name": "Mercury by EPA 1631", "QualifierType": "", "Description": "", "LastChangeDate": "2026-08-05T07:19:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1206", "Identifier": "LMMB051", "Context": "EPA_GLNPO", "Name": "Mercury in Plankton", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1572", "Identifier": "SOP-HG-020", "Context": "21FLPNS", "Name": "Mercury in Sediment", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-29T12:34:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1835", "Identifier": "NPS_EPA_245.5", "Context": "11NPSWRD", "Name": "Mercury in Sediment by CVAA", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-14T10:01:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1679", "Identifier": "SOP-HG-020", "Context": "21FLWPB", "Name": "Mercury in Sediments", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T16:22:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1837", "Identifier": "NPS_EPA_7471", "Context": "11NPSWRD", "Name": "Mercury in Solid or Semisolid Waste", "QualifierType": "", "Description": "", "LastChangeDate": "2018-10-16T18:37:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28127", "Identifier": "71930", "Context": "71930", "Name": "Mercury in fish, wet weight*", "QualifierType": "Routine Sampling", "Description": "059", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2815", "Identifier": "Metal Water\TCLP", "Context": "SWQC", "Name": "Metal Water\TCLP", "QualifierType": "", "Description": "Metal Water\TCLP (EPA 1311) Digestion EPA 3015A, Envirotech Lab", "LastChangeDate": "2016-03-10T15:38:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2201", "Identifier": "EPA200.8", "Context": "21FLORAN", "Name": "Metals", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1124", "Identifier": "LG213", "Context": "EPA_GLNPO", "Name": "Metals (Cations) Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T10:24:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1155", "Identifier": "LMMB005", "Context": "EPA_GLNPO", "Name": "Metals Cleaning Procedures", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60978", "Identifier": "Metals Digest", "Context": "SANPASQUAL", "Name": "Metals Digest", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-03T16:51:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2228", "Identifier": "SM3113B", "Context": "21FLORAN", "Name": "Metals Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-21T18:18:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1656", "Identifier": "3050", "Context": "21FLWPB", "Name": "Metals in Sediments", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T16:23:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1746", "Identifier": "200.7\6010", "Context": "21FLACEP", "Name": "Metals in Water (Preparation)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:15:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2281", "Identifier": "200.7(W)", "Context": "USEPA", "Name": "Metals in Water by ICP-AES", "QualifierType": "", "Description": "", "LastChangeDate": "2014-03-06T10:58:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1264", "Identifier": "MTL_SPEC", "Context": "EPA_GLNPO", "Name": "Metals speciation", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T11:24:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1125", "Identifier": "LG300", "Context": "EPA_GLNPO", "Name": "Meteorological Data Aboard the R\V Lake Guardian", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:23:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1248", "Identifier": "LMMB093", "Context": "EPA_GLNPO", "Name": "Meteorological Data Aboard the R\V Lake Guardian", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2757", "Identifier": "Method 0423", "Context": "WQXTEST", "Name": "Method 04-23", "QualifierType": "QualifierTypeName", "Description": "MethodDecription", "LastChangeDate": "2018-12-24T17:07:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1029", "Identifier": "AS9302", "Context": "EPA_GLNPO", "Name": "Method AS9302", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3374", "Identifier": "Method Specific Preparation", "Context": "BIGSANDY", "Name": "Method Specific Preparation", "QualifierType": "", "Description": "BSK Lab", "LastChangeDate": "2025-07-17T22:05:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3208", "Identifier": "UNKNOWN", "Context": "NHDES", "Name": "Method unknown or unspecified", "QualifierType": "", "Description": "", "LastChangeDate": "2025-12-19T11:53:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28175", "Identifier": "Method001", "Context": "WQXTEST", "Name": "Method11", "QualifierType": "", "Description": "", "LastChangeDate": "2022-11-01T16:01:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1564", "Identifier": "LAB", "Context": "21FLPNS", "Name": "Methodology for Chemical Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-30T13:11:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2614", "Identifier": "ME MBSA RS - Subsamp", "Context": "PENOBSCOTINDIANNATIONDNR", "Name": "Methods for Biological Sampling and Analysis of Maine's Rivers and Streams - Macroinvertebrate Subsample Factor", "QualifierType": "", "Description": "", "LastChangeDate": "2019-01-10T12:11:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1800", "Identifier": "GLKN_METHYL_HG", "Context": "11NPSWRD_WQX", "Name": "Methyl Mercury", "QualifierType": "", "Description": "De Wild, J.F., M.L. Olson, and S.D. Olund; 2002; Determination of Methyl Mercury by Aqueous Phase Ethylation, Followed by Gas Chromatographic Separation with Cold Vapor Atomic Fluorescence Detection; U.S. Geological Survey; 14 pp.", "LastChangeDate": "2025-03-22T04:33:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1813", "Identifier": "GUMO0009_GUMO_MEYE_B", "Context": "GUMO0009", "Name": "Meyerhoff's Lab Preparation for 1983 Benthic Samples", "QualifierType": "", "Description": "Each sample was washed by Meyerhoff through 10- and 30-mesh USGS soil sieves (2 and 0.6 millimeter openings, respectively), and the 2 subsamples were then separated with sugar flotation according to Lind 1979 (Lind, O.T. 1979. Handbook of common methods in limnology, 2nd edition. C.V. Mosby Co., St. Louis, MO.199 pp.). After removal of organisms, the substrate from each sample was placed in a pan, dried at 100 degrees Celsius for 48 hours, and stored. Meyerhoff, R.D.; 1984; Variation in Benthic Community Structure: The Role of the Macroenvironment Along a Downstream Gradient; Biology Department, Baylor University, Waco, TX; 185 pp.", "LastChangeDate": "2017-02-01T16:15:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1814", "Identifier": "GUMO0009_GUMO_MEYE_G", "Context": "GUMO0009", "Name": "Meyerhoff's Lab Preparation for Particle Size, CPOM, & Periphyton Biomass", "QualifierType": "", "Description": "Meyerhoff rinsed the substrate to remove coarse particulate allochthonous material (coarse particulate organic matter, CPOM, particles greater than 5 millimeters). This allochthonous material was dried in an oven at 100 degrees Centigrade for 48 hours. After removal of allochthonous material substrate was placed in a pan and dried at 100 degrees Centigrade for 48 hours. Meyerhoff, R.D.; 1984; Variation in Benthic Community Structure: The Role of the Macroenvironment Along a Downstream Gradient; Biology Department, Baylor University, Waco, TX; 185 pp.", "LastChangeDate": "2017-02-01T16:15:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1565", "Identifier": "Micro-MF", "Context": "21FLPNS", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T14:29:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1451", "Identifier": "Micro-MF", "Context": "21FLA", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-03T11:46:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2323", "Identifier": "Micro-MF", "Context": "21FLGTM", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-20T10:47:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2759", "Identifier": "Micro-MF", "Context": "WQXTEST", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2017-10-29T17:07:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2788", "Identifier": "Micro-MF", "Context": "21FLCOSP", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-14T13:04:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1642", "Identifier": "Micro-MF", "Context": "21FLTPA", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-07T09:26:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1617", "Identifier": "Micro-MF", "Context": "21FLCEN", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-07T07:34:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1480", "Identifier": "Micro-MF", "Context": "21FLGW", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-07T08:44:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1371", "Identifier": "MICRO-MF", "Context": "21FLNWFD", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T10:46:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61001", "Identifier": "Micro-MF", "Context": "21FLMAIT", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-27T08:23:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2242", "Identifier": "Micro-MF", "Context": "21FLCHAR", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-08T15:09:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2483", "Identifier": "Micro-MF", "Context": "21FLWQSP", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2021-02-05T13:09:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1673", "Identifier": "Micro-MF", "Context": "21FLWPB", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-05T09:25:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1704", "Identifier": "Micro-MF", "Context": "21FLFTM", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-20T10:01:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1590", "Identifier": "Micro-MF", "Context": "21FLWQA", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-05T10:38:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60930", "Identifier": "Micro-MF", "Context": "21FLCASS", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-08T09:51:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3080", "Identifier": "Micro-MF", "Context": "21FLTLHR", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-04T08:34:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3388", "Identifier": "Micro-MF", "Context": "21FLGWMS", "Name": "Micro-MF", "QualifierType": "", "Description": "", "LastChangeDate": "2023-10-06T14:40:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2789", "Identifier": "Micro-MPN", "Context": "21FLCOSP", "Name": "Micro-MPN", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-15T14:05:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2628", "Identifier": "Micro-MPN", "Context": "21FLMAYP", "Name": "Micro-MPN", "QualifierType": "", "Description": "", "LastChangeDate": "2024-05-29T10:46:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28048", "Identifier": "Microbiology - Subco", "Context": "Microbiology - Subcontract", "Name": "Microbiology - Subcontract", "QualifierType": "", "Description": "", "LastChangeDate": "2025-08-08T21:14:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60976", "Identifier": "Microbiology Prep SD", "Context": "SANPASQUAL", "Name": "Microbiology Prep SD", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-03T16:51:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1773", "Identifier": "3051", "Context": "ZZZZZZZZ", "Name": "Microwave Assisted Acid Digestion of Sediments, Sludges, Soils, and Oils", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-14T10:01:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2511", "Identifier": "USEPA 3051", "Context": "USEPA", "Name": "Microwave Assisted Acid Digestion of Sediments, Sludges, Soils, and Oils", "QualifierType": "", "Description": "", "LastChangeDate": "2010-03-30T14:58:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2512", "Identifier": "USEPA 3052", "Context": "USEPA", "Name": "Microwave Assisted Acid Digestion of Siliceous and Organically Based Matrices", "QualifierType": "", "Description": "", "LastChangeDate": "2018-06-11T16:52:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61722", "Identifier": "CAKN_SM20_3030K", "Context": "11NPSWRD_WQX", "Name": "Microwave-Assisted Digestion in Standard Methods, 20th ed. (APHA 1998)", "QualifierType": "", "Description": "Microwave-assisted digestion was used to prepare water samples for metals analyses. American Public Health Association; 1998; Standard Methods for the Examination of Water and Wastewater, 20th ed.; American Public Health Association, Washington, DC; Various pagination", "LastChangeDate": "2026-05-19T11:14:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1927", "Identifier": "WRST_MEPA1312", "Context": "11NPSWRD", "Name": "Modification of the EPA Synthetic Precipitation Leaching Procedure 1312", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:28:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1007", "Identifier": "Modified Sobek 3.2", "Context": "CDATRUST", "Name": "Modified Sobek 3.2", "QualifierType": "", "Description": "", "LastChangeDate": "2013-03-26T13:52:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1064", "Identifier": "D2974", "Context": "EPA_GLNPO", "Name": "Moisture", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:28:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61723", "Identifier": "Samp_Prep_FIREBB_liq", "Context": "SONOMAWATER_WQX", "Name": "Monosaccharide Anhydride Extraction and Derivatization from Liquid Samples", "QualifierType": "", "Description": "Surface water samples were measured into 10 mL aliquots and spiked with isotopically labelled surrogate standards. Formic acid was added to lower the pH to < 2 and samples were placed in the freezer (-20 degrees celcius) overnight. All samples were freeze dried for approximately 48 hours to remove water. Remaining sediments and organic matter were mixed with 5 mL methanol and sonicated to extract monosaccharide anhydrides. Samples were centrifuged and the methanol layer was transferred to a reaction vial. Methanol extracts were then evaporated to dryness under nitrogen gas. Dried samples were derivatized with a mixture of N,O-bis(trimethylsilyl)trifluoroacetamide with 10% trimethylchlorosilane and pyridine (2:1, v:v). Derivatized samples were cooled and transfered to 2 mL autosampler vials for analysis.", "LastChangeDate": "2026-05-21T13:59:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1792", "Identifier": "CABR_USN1_PAHS", "Context": "11NPSWRD", "Name": "Multiple-Step Preparation of 1997 US Navy Water Samples for PAHs", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T13:52:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1860", "Identifier": "NPS_SMW_MDHSO", "Context": "11NPSWRD", "Name": "Mussel Dissection and Homogenization for Synthetic Organic Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-12T17:44:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1861", "Identifier": "NPS_SMW_MDHTE", "Context": "11NPSWRD", "Name": "Mussel Dissection and Homogenization for Trace Element Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-12T17:44:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1842", "Identifier": "NPS_NADP_FILTER", "Context": "11NPSWRD", "Name": "NADP Filter with 0.45 um Gelman Polyethersulfone", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T17:42:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2037", "Identifier": "128", "Context": "128", "Name": "NAPHTHALENE", "QualifierType": "Routine Sampling", "Description": "LOPAH", "LastChangeDate": "2026-08-05T10:21:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33", "Identifier": "NYBightSamplePrep", "Context": "testGCSWQX", "Name": "NBightSamplePrep", "QualifierType": "", "Description": "", "LastChangeDate": "2011-02-08T15:54:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2500", "Identifier": "NCA Sed Tox WQ", "Context": "NARS_WQX", "Name": "NCA Standard Sediment Toxicity Water Quality Sample", "QualifierType": "", "Description": "The recommended 10-d sediment toxicity test with H. azteca must be conducted at 23 deg C with a 16L:8D photoperiod at an illuminance of about 100 to 1000 lux . Test chambers are 300-mL high-form lipless beakers containing 100 mL of sediment and 175 mL of overlying water.", "LastChangeDate": "2014-11-04T12:28:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1824", "Identifier": "NCBN_SOP6P", "Context": "11NPSWRD", "Name": "NCBN SOP 6 Chlorophyll a Sample Filtration", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-08T11:11:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60964", "Identifier": "NEO", "Context": "ISDH", "Name": "NEO", "QualifierType": "", "Description": "", "LastChangeDate": "2026-06-24T14:22:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2716", "Identifier": "01065H", "Context": "01065H", "Name": "NICKEL, DISSOLVED (WATER & WASTE) BY ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2008", "Identifier": "01065H", "Context": "01065H", "Name": "NICKEL, DISSOLVED (WATER & WASTE) BY ICPMS", "QualifierType": "Routine Sampling", "Description": "015", "LastChangeDate": "2026-08-05T10:22:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2007", "Identifier": "01065A", "Context": "01065A", "Name": "NICKEL, DISSOLVED (WATER & WASTE) BY ICP", "QualifierType": "Routine Sampling", "Description": "087", "LastChangeDate": "2026-08-05T10:21:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2009", "Identifier": "01067A", "Context": "01067A", "Name": "NICKEL, TOTAL (WATER & WASTE) BY ICP", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2717", "Identifier": "01067A", "Context": "01067A", "Name": "NICKEL, TOTAL (WATER & WASTE) BY ICP", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2010", "Identifier": "01067H", "Context": "01067H", "Name": "NICKEL, TOTAL (WATER & WASTE) BY ICPMS", "QualifierType": "Routine Sampling", "Description": "010", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2718", "Identifier": "01067H", "Context": "01067H", "Name": "NICKEL, TOTAL (WATER & WASTE) BY ICPMS", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2537", "Identifier": "NIT interference tre", "Context": "NIT interference treatment", "Name": "NIT interference treatment", "QualifierType": "", "Description": "", "LastChangeDate": "2026-07-08T23:15:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "32", "Identifier": "NJAL#38965-01", "Context": "RU_Passaic Project", "Name": "NJ Analytical Laboratories", "QualifierType": "", "Description": "", "LastChangeDate": "2010-09-16T14:58:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2422", "Identifier": "NO PREP", "Context": "Test America (Dayton)", "Name": "NO PREP", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-03T10:31:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61072", "Identifier": "NO PREP", "Context": "YAN_WQX", "Name": "NO PREP", "QualifierType": "", "Description": "", "LastChangeDate": "2026-04-16T13:56:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1397", "Identifier": "NONE", "Context": "MEDEP_WQX", "Name": "NO PREPARATION REQUIRED FOR THIS METHOD", "QualifierType": "", "Description": "", "LastChangeDate": "2015-04-28T15:13:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28143", "Identifier": "00630", "Context": "00630", "Name": "NO2+NO3 N Total by IC", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1530", "Identifier": "SM 4500 NO3F", "Context": "21FLHILL", "Name": "NO2NO3", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-06T13:14:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2597", "Identifier": "5-190", "Context": "NOAA", "Name": "NOAA National Status And Trends Methods", "QualifierType": "", "Description": "", "LastChangeDate": "2011-01-13T10:10:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1266", "Identifier": "NOAA_S_T", "Context": "EPA_GLNPO", "Name": "NOAA SandT (version not specified)", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2807", "Identifier": "NONE", "Context": "R10BOOMSNUB", "Name": "NONE", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-05T14:23:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1830", "Identifier": "NPS_0.4_MILLIPO", "Context": "11NPSWRD", "Name": "NPS Filter through 0.4 Micron Millipore Filter in Field", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T14:44:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1828", "Identifier": "NPS_0.45_FIELD", "Context": "11NPSWRD", "Name": "NPS Filter through 0.45 Micron Filter in Field", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-01T17:29:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1829", "Identifier": "NPS_0.45_LAB", "Context": "11NPSWRD_WQX", "Name": "NPS Filter through 0.45 Micron Filter in Lab", "QualifierType": "", "Description": "Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2022-10-26T09:51:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1831", "Identifier": "NPS_3P_EPA8LLE", "Context": "11NPSWRD_WQX", "Name": "NPS\EPA Emerging Contaminants Program Liquid-Liquid Extraction for Pesticides in Water at the EPA Region 8 Laboratory", "QualifierType": "", "Description": "Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2020-11-30T11:55:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60958", "Identifier": "NPSA_AECOS_FISHP", "Context": "11NPSWRD_WQX", "Name": "NPSA Fish Tissue Dissection In AECOS Lab, Hawaii", "QualifierType": "", "Description": "Fish were frozen whole and shipped to the AECOS Lab in Kailua, Hawaii. A single modest-sized specimen usually would provide sufficient muscle tissue for the analyses. However, batching was necessary to obtain a sufficient quantity of liver tissue for all tests. Batching of dissected tissue was undertaken in the laboratory and only fishes of the same species were combined into a batch. Because so many different collections were received by the laboratory and combined in various ways, we have arbitrarily assigned batch numbers. These numbers do not correspond with either collection identification numbers (assigned by Department of Marine and Wildlife Resources) or laboratory log numbers (assigned by AECOS, Inc.). AECOS, Inc.; 1991; A Preliminary Toxics Scan of Water, Sediment, and Fish Tissue from Inner Pago Pago Harbor in American Samoa. Prepared for: The Government of American Samoa, The Department of Marine and Wildlife Resources, American Samoa Environmental Protection Agency, American Samoa Coastal Management Program, August 1991; AECOS, Inc., Kailua, HI; 75 pp.", "LastChangeDate": "2024-06-10T15:21:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2791", "Identifier": "NUTS_DEFAULT", "Context": "21FLCOSP", "Name": "NUTRIENTS DEFAULT PREP", "QualifierType": "", "Description": "", "LastChangeDate": "2018-02-23T16:32:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "34", "Identifier": "NYBight_Sample_Prep", "Context": "NARSTEST", "Name": "NY Bight Lab Sample Prep", "QualifierType": "", "Description": "Full details of lab sample preparation are in QAPP", "LastChangeDate": "2011-04-26T10:42:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61019", "Identifier": "NMLabPrep", "Context": "SANDIAWQ_WQX", "Name": "New Mexico Lab Sample Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-17T14:19:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1113", "Identifier": "LG201", "Context": "EPA_GLNPO", "Name": "Niskin Bottle Hydrographic Line Sampling", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28144", "Identifier": "00631", "Context": "00631", "Name": "Nitrate plus Nitrite Total by IC", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1802", "Identifier": "GLKN_NOX-N", "Context": "11NPSWRD_WQX", "Name": "Nitrate+Nitrite-N", "QualifierType": "", "Description": "filter using a 0.45 um Millipore filter, no preservative, freeze Magdalene, S., D.R. Engstrom, and J.E. Elias; 2007; Standard operating procedure #7: Processing water samples and analytical laboratory requirements. in Magdalene, S., D.R. Engstrom, and J.E. Elias. 2007. Large rivers water quality monitoring protocol, Version 1.0.; National Park Service, Great Lakes Network; 11 pp.", "LastChangeDate": "2026-07-13T13:43:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1230", "Identifier": "LMMB075", "Context": "EPA_GLNPO", "Name": "Nitrate, Nitrite (Lachat Method)", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1755", "Identifier": "353.2(PREP)", "Context": "21FLACEP", "Name": "Nitrate-Nitrite Nitrogen by Colorimetry (Preparation)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:15:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1114", "Identifier": "LG203", "Context": "EPA_GLNPO", "Name": "Nitrate-Nitrite in Lake Water", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T10:24:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1784", "Identifier": "ARCH_CCP_HNO3CAT", "Context": "11NPSWRD_WQX", "Name": "Nitric Acid Amendment of Pothole Cation Water Samples fron Davis 2013", "QualifierType": "", "Description": "Upon arrival to the lab, the cation water samples from Colorado Plateau potholes from Chan et al. 2005 and Davis 2013 were amended with 2 ml of ultra-pure concentrated nitric acid. Samples were then shipped to Rick Knurr at the Department of Geology and Geophysics Lab (now Department of Earth Sciences Geochemical Lab) at the University of Minnesota and analyzed. Davis, J.M.; 2013; Physical, Chemical, and Biological Characteristics of Weathering Pits, Moab, Utah; Department of Geography, The University of Utah, Salt Lake City, UT; 233 pp.", "LastChangeDate": "2018-09-06T14:05:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1548", "Identifier": "3030-E", "Context": "ZZZZZZZZ", "Name": "Nitric Acid Digestion of Metals", "QualifierType": "", "Description": "", "LastChangeDate": "2014-06-25T13:21:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1515", "Identifier": "3030-E", "Context": "ZZZZZZZZ", "Name": "Nitric Acid Digestion of Metals", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-06T13:14:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2260", "Identifier": "3030-E", "Context": "APHA", "Name": "Nitric Acid Digestion of Metals", "QualifierType": "", "Description": "", "LastChangeDate": "2010-10-27T13:59:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2166", "Identifier": "3030-F", "Context": "ZZZZZZZZ", "Name": "Nitric and Hydrochloric Acid Digestion", "QualifierType": "", "Description": "", "LastChangeDate": "2019-01-24T14:29:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "31", "Identifier": "3030-F", "Context": "21FLBABR_WQX", "Name": "Nitric and Hydrochloric Acid Digestion", "QualifierType": "", "Description": "", "LastChangeDate": "2010-09-08T16:44:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2207", "Identifier": "EPA353.2", "Context": "21FLORAN", "Name": "Nitrogen Suite", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2297", "Identifier": "EPA350.1", "Context": "USACE", "Name": "Nitrogen, Ammonia", "QualifierType": "", "Description": "", "LastChangeDate": "2013-01-24T13:44:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2316", "Identifier": "SM4500NH3G", "Context": "USACE", "Name": "Nitrogen, Ammonia", "QualifierType": "", "Description": "", "LastChangeDate": "2012-01-30T16:45:22 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2315", "Identifier": "SM4500NH3B", "Context": "USACE", "Name": "Nitrogen, Ammonia", "QualifierType": "", "Description": "", "LastChangeDate": "2012-01-30T17:00:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2167", "Identifier": "351.2", "Context": "21FLSARA", "Name": "Nitrogen, Kjeldahl", "QualifierType": "", "Description": "", "LastChangeDate": "2019-01-25T11:09:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2206", "Identifier": "EPA351.2", "Context": "21FLORAN", "Name": "Nitrogen, Kjeldahl", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2784", "Identifier": "EPA 351.2", "Context": "21FLCOSP", "Name": "Nitrogen, Kjeldahl Prep (subcontracted)", "QualifierType": "", "Description": "", "LastChangeDate": "2018-02-23T16:32:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2296", "Identifier": "EPA300.0", "Context": "USACE", "Name": "Nitrogen, Nitrate + Nitrite \ Sulfate", "QualifierType": "", "Description": "", "LastChangeDate": "2012-01-30T17:00:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2283", "Identifier": "300.0", "Context": "USEPA", "Name": "Nitrogen, Nitrate + Nitrite \ Sulfate", "QualifierType": "", "Description": "", "LastChangeDate": "2015-02-24T11:21:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2299", "Identifier": "EPA353.2", "Context": "USACE", "Name": "Nitrogen, Nitrate+Nitrite", "QualifierType": "", "Description": "", "LastChangeDate": "2013-01-24T13:44:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2317", "Identifier": "SM4500NO3F", "Context": "USACE", "Name": "Nitrogen, Nitrate+Nitrite", "QualifierType": "", "Description": "", "LastChangeDate": "2011-02-25T15:11:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2318", "Identifier": "SM4500Norg", "Context": "USACE", "Name": "Nitrogen, Total Kjeldahl", "QualifierType": "", "Description": "", "LastChangeDate": "2012-01-30T17:00:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2783", "Identifier": "EPA 350.1", "Context": "21FLCOSP", "Name": "Nitrogen, ammonia as N Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2018-02-23T16:32:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2819", "Identifier": "Nitrogen, as T", "Context": "Nitrogen, as T", "Name": "Nitrogen, as T", "QualifierType": "", "Description": "", "LastChangeDate": "2016-08-16T15:18:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2671", "Identifier": "No Lab Prep Reqd", "Context": "CCWF", "Name": "No Lab Prep Reqd", "QualifierType": "", "Description": "No Lab Prep Required", "LastChangeDate": "2016-01-06T18:48:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1344", "Identifier": "None", "Context": "CALWR_WQX", "Name": "No Lab Sample Preparation Methods used.", "QualifierType": "", "Description": "The lab prep method is set to zero because there are no prep methods for the method data we are submitting. The zero is defined as �None� in our method table, but I cannot find an equivalent WQX\EPA approved analytical (lab prep) method for �None� to add to our domain value cross-reference table. I�m assuming a WQX\EPA domain value cross-reference analytical method and method ID context need to be defined when the method is �None�", "LastChangeDate": "2018-07-06T11:53:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2645", "Identifier": "No Lab Prep Reqd", "Context": "LFVC", "Name": "No Laboratory Preparation Required", "QualifierType": "", "Description": "No Laboratory Preparation Required- Sample vessels are provided by the lab. Bottles may be pre-preserved or acidified according to protocol following sample collection. Other storage requirements (ice, etc.) met per instructions from the laboratory.", "LastChangeDate": "2016-07-01T15:07:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2666", "Identifier": "No Lab Prep Reqd", "Context": "EPA Region 8 Contract Lab", "Name": "No Laboratory Preparation Required", "QualifierType": "", "Description": "No Laboratory Preparation Required per EPA Region 8 Contract Lab", "LastChangeDate": "2021-07-12T13:55:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2186", "Identifier": "No Prep", "Context": "21FLPBCH", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2023-01-25T12:10:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3251", "Identifier": "No Prep", "Context": "YUROKTEP_WQX", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2021-01-11T15:34:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2625", "Identifier": "No Prep", "Context": "21FLPASC", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-17T13:55:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2642", "Identifier": "No Prep", "Context": "21FLCCZM", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-10T08:00:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2649", "Identifier": "No Prep", "Context": "21FLCOJB", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-13T15:22:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3065", "Identifier": "No Prep", "Context": "21FLESPI", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-16T14:36:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3082", "Identifier": "No Prep", "Context": "21FLTLHR", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-04T08:34:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3095", "Identifier": "No Prep", "Context": "HW", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-12-09T17:14:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3099", "Identifier": "No Prep", "Context": "TEP", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-08T08:21:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3102", "Identifier": "No Prep", "Context": "CWA", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2026-04-04T14:36:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3108", "Identifier": "No Prep", "Context": "ColSWCD", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-20T21:06:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3110", "Identifier": "No Prep", "Context": "SWC", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2020-09-01T18:24:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1507", "Identifier": "No Prep", "Context": "21FLJXWQ", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-23T13:47:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60926", "Identifier": "No Prep", "Context": "21FLBBAP", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-07T13:27:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "25466", "Identifier": "No Prep", "Context": "GILLIAM_SWCD", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-09-17T03:56:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1706", "Identifier": "No Prep", "Context": "21FLFTM", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2025-10-20T10:01:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3164", 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} , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "49057", "Identifier": "No Prep", "Context": "21FLCOSP", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2023-02-22T15:24:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60944", "Identifier": "No Prep", "Context": "21FLNUTT", "Name": "No Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2024-10-29T15:00:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37062", "Identifier": "No Prep", "Context": "BENTON_SWCD(NOSTORETID)", "Name": "No Prep", "QualifierType": "", "Description": "No Prep", "LastChangeDate": "2026-01-28T15:28:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60989", "Identifier": "No Prep", "Context": 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"Description": "", "LastChangeDate": "2016-04-19T12:53:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1758", "Identifier": "365.2\365.3", "Context": "21FLACEP", "Name": "Phosphorus- Total", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:15:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1207", "Identifier": "LMMB052", "Context": "EPA_GLNPO", "Name": "Photometric Determination of Mercury in Fish", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:22 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1242", "Identifier": "LMMB087", "Context": "EPA_GLNPO", "Name": "Phytoplankton Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample 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"LMMB023", "Context": "EPA_GLNPO", "Name": "Phytoplankton Sample Collection and Preservation", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1131", "Identifier": "LG400", "Context": "EPA_GLNPO", "Name": "Phytoplankton Sample Collection and Preservation", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1581", "Identifier": "DEP-SOP-BB02", "Context": "21FLWQA", "Name": "Phytoplankton Sample Filtering for Chlorophyll a Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T09:24:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2272", "Identifier": "SM 10200 H 1", "Context": "21FLAVON", "Name": "Pigment extraction", "QualifierType": "", "Description": "", "LastChangeDate": "2013-09-18T14:20:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1783", "Identifier": "ARCH_CCP_DIATOMPREP", "Context": "11NPSWRD_WQX", "Name": "Pothole Diatom Digestion and Slide Preparation by Davis 2013", "QualifierType": "", "Description": "Colorado Plateau potholes diatom samples were brought by Chan et al. 2005 and Davis 2013 to the lab at the Earth Change Observatory (now defunct) at the University of Utah. Slides were processed for diatom identification and enumeration. Chrysophycean algae and other silicious organisms present in the samples were documented. Silicious organisms, such as chrysophytes, are found alongside diatoms and are themselves established bioindicators. Siliceous microfossil preparation and analyses followed a standard procedure outlined in: Battarbee, R.W., 1986. Diatom analysis. In B.E. Berglund (Ed.), Handbook of Holocene Palaeoecology and Palaeohydrology (pp. 527-570). Toronto, Canada: John Wiley & Sons. About 0.25-1.0 g of the sample was mixed with sulfuric and nitric acid. The samples with acids were heated for approximately 90 minutes. The samples were repeatedly rinsed, over about 30 days, with distilled water to remove the acids and obtain a neutral pH as indicated by litmus paper. The resulting slurry was evaporated on coverslips. The coverslips were mounted onto glass slides with Naphrax® as the binding agent. Davis, J.M.; 2013; Physical, Chemical, and Biological Characteristics of Weathering Pits, Moab, Utah; Department of Geography, The University of Utah, Salt Lake City, UT; 233 pp.", "LastChangeDate": "2018-09-06T14:05:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1928", "Identifier": "WRST_PSDGMP", "Context": "11NPSWRD", "Name": "Precipitate Sample Drying, Ground with a Mortar and Pestle", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:28:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1152", "Identifier": "LMMB002", "Context": "EPA_GLNPO", "Name": "Precipitation Sampling", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1832", "Identifier": "NPS_BRULAND85_M", "Context": "11NPSWRD", "Name": "Preconcentration of Metal Samples as Specified by Bruland et al. 1985", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T13:53:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1896", "Identifier": "SHIL_GRUB_1UM", "Context": "11NPSWRD", "Name": "Prefiltered w\Glass Fiber Filter, Effective Retention of > 1um", "QualifierType": "", "Description": "", "LastChangeDate": "2018-10-16T18:45:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3242", "Identifier": "PRINNEWHOF", "Context": "GNLK01_WQX", "Name": "Prein&Newhof Lab Standard Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2026-04-29T11:39:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2169", "Identifier": "4500-NH3(B)", "Context": "ZZZZZZZZ", "Name": "Preliminary Distillation Step", "QualifierType": "", "Description": "", "LastChangeDate": "2019-01-24T14:40:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1778", "Identifier": "4500-NH3-B", "Context": "APHA", "Name": "Preliminary Distillation for Ammonia in Water", "QualifierType": "", "Description": "American Public Health Association; 1992; Standard Methods for the Examination of Water and Wastewater, 18th Edition.; American Public Health Association; 18th Edition", "LastChangeDate": "2021-03-03T15:48:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "27", "Identifier": "4500-NH3-B", "Context": "21FLBABR_WQX", "Name": "Preliminary Distillation for Ammonia in Water", "QualifierType": "", "Description": "", "LastChangeDate": "2010-09-08T16:46:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1383", "Identifier": "4500-NH3-B", "Context": "ZZZZZZZZ", "Name": "Preliminary Distillation for Ammonia in Water", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-04T15:06:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59740", "Identifier": "4500-NH3B", "Context": "WVDEP_WQX", "Name": "Preliminary Distillation for Ammonia in Water (Standard Methods\APHA)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-07-24T20:33:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59739", "Identifier": "SM4500NH3-B-1997", "Context": "WVDEP_WQX", "Name": "Preliminary Distillation for Ammonia in Water (Standard Methods\APHA, 1997)", "QualifierType": "", "Description": "", "LastChangeDate": "2023-07-25T11:54:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1770", "Identifier": "3030-B", "Context": "APHA", "Name": "Preliminary Filtration of Metals Samples", "QualifierType": "", "Description": "American Public Health Association; 1992; Standard Methods for the Examination of Water and Wastewater, 18th Edition.; American Public Health Association; 18th Edition", "LastChangeDate": "2026-04-30T15:38:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2161", "Identifier": "3030-B", "Context": "ZZZZZZZZ", "Name": "Preliminary Filtration of Metals Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T13:13:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28", "Identifier": "CHLA", "Context": "21FLBABR_WQX", "Name": "Preliminary filtration", "QualifierType": "", "Description": "", "LastChangeDate": "2010-09-08T16:43:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61724", "Identifier": "Fillet_O_Fish", "Context": "21COL001_WQX", "Name": "Prep Fish Fillets For Analysis", "QualifierType": "", "Description": "Could include homogenization", "LastChangeDate": "2026-06-04T15:17:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2755", "Identifier": "LSPM-1", "Context": "WQXTEST", "Name": "Prep Method 1", "QualifierType": "", "Description": "", "LastChangeDate": "2016-08-02T21:44:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60915", "Identifier": "METHOD", "Context": "MDEQ-WQ_WQX", "Name": "Prep Method Part of Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2025-06-17T13:36:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1605", "Identifier": "10200-H", "Context": "21FLCEN", "Name": "Prep chlorophyll and pheophytin", "QualifierType": "", "Description": "", "LastChangeDate": "2014-08-20T16:45:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1335", "Identifier": "METHOD", "Context": "LDEQ", "Name": "Prep method included in analytical method", "QualifierType": "", "Description": "", "LastChangeDate": "2026-04-10T09:46:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59743", "Identifier": "SM 5210B-11", "Context": "WVDEP_WQX", "Name": "Preparation for 5-Day Biochemical Oxygen Demand (Standard Methods\APHA, 2011)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T12:09:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60923", "Identifier": "SM 5210B-2016", "Context": "WVDEP_WQX", "Name": "Preparation for 5-Day Biochemical Oxygen Demand (Standard Methods\APHA, 2016)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T17:10:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1633", "Identifier": "SOP-TA08_010804", "Context": "21FLCEN", "Name": "Preparation for Algal Growth Potential", "QualifierType": "", "Description": "", "LastChangeDate": "2014-08-20T16:36:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1719", "Identifier": "SOP-TA08_010804", "Context": "21FLFTM", "Name": "Preparation for Algal Growth Potential", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-20T16:06:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1658", "Identifier": "351.2 MAR 83", "Context": "21FLWPB", "Name": "Preparation for Ammonia and TKN", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T16:23:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1687", "Identifier": "351.2", "Context": "21FLFTM", "Name": "Preparation for Ammonia+Organic Nitrogen, Total (as N)", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-21T09:20:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1578", "Identifier": "351.2", "Context": "21FLFTM", "Name": "Preparation for Ammonia+Organic Nitrogen, Total (as N)", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T09:24:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1464", "Identifier": "351.2", "Context": "21FLFTM", "Name": "Preparation for Ammonia+Organic Nitrogen, Total (as N)", "QualifierType": "", "Description": "", "LastChangeDate": "2013-12-05T17:15:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1434", "Identifier": "351.2", "Context": "21FLFTM", "Name": "Preparation for Ammonia+Organic Nitrogen, Total (as N)", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-21T11:09:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1713", "Identifier": "SOP-BB01", "Context": "21FLFTM", "Name": "Preparation for Bacterial Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-20T16:08:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1440", "Identifier": "SOP-BB02", "Context": "21FLCMP", "Name": "Preparation for Chlorophyll a and Pheophytin a analysis-FDEP Tallahassee Laboratory", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-21T11:10:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1714", "Identifier": "SOP-BB02", "Context": "21FLFTM", "Name": "Preparation for Chlorophyll-A (Monochromatic) & Pheophytin-A (Monochromatic)", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-21T09:20:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60897", "Identifier": "EPA 446.0 Rev 1.2-1997", "Context": "WVDEP_WQX", "Name": "Preparation for Chlorophyll-a (USEPA Revision 1.2, 1997)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T17:10:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59731", "Identifier": "HACH 10029", "Context": "WVDEP_WQX", "Name": "Preparation for Escherichia coli (HACH)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-01T16:06:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59735", "Identifier": "EPA 200.8", "Context": "WVDEP_WQX", "Name": "Preparation for Metals (USEPA)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T17:10:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59734", "Identifier": "EPA 200.7", "Context": "WVDEP_WQX", "Name": "Preparation for Metals (USEPA)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T17:10:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59728", "Identifier": "EPA 350.1", "Context": "WVDEP_WQX", "Name": "Preparation for Nitrogen, Ammonia as N (USEPA)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-02-29T19:16:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1580", "Identifier": "365.4", "Context": "21FLFTM", "Name": "Preparation for Phosphorus, Total (as P)", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T09:24:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1555", "Identifier": "365.4", "Context": "21FLFTM", "Name": "Preparation for Phosphorus, Total (as P)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-30T13:10:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1610", "Identifier": "365.4", "Context": "21FLCEN", "Name": "Preparation for Phosphorus, Total (as P)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-08-20T12:56:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1435", "Identifier": "365.4", "Context": "21FLFTM", "Name": "Preparation for Phosphorus, Total (as P)", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-21T11:10:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1690", "Identifier": "365.4", "Context": "21FLFTM", "Name": "Preparation for Phosphorus, Total (as P)", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-21T09:20:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1660", "Identifier": "365.4 (SED)", "Context": "21FLWPB", "Name": "Preparation for Phosphorus, Total as P", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T16:23:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1499", "Identifier": "SOP-BB02", "Context": "21FLBFA", "Name": "Preparation for Phytoplankton Chlorophyll A and Phaephytin by spectrophotometry", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-20T11:43:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1570", "Identifier": "SOP-BB02", "Context": "21FLPNS", "Name": "Preparation for Phytoplankton chlorophyll-a and phaeophytin by spectrophotometry", "QualifierType": "", "Description": "", "LastChangeDate": "2014-09-15T10:22:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1664", "Identifier": "DEPSED SOP-015", "Context": "21FLWPB", "Name": "Preparation for Reactive Orthophosphate", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T16:23:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59730", "Identifier": "EPA 351.2, Rev 2.0", "Context": "WVDEP_WQX", "Name": "Preparation for TKN (USEPA Revision 2.0)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T17:10:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1689", "Identifier": "365.1", "Context": "21FLFTM", "Name": "Preparation for Total Phosphorus in Water", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-20T16:05:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1466", "Identifier": "365.1", "Context": "21FLGW", "Name": "Preparation for Total Phosphorus in Water", "QualifierType": "", "Description": "", "LastChangeDate": "2018-01-12T16:24:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2239", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-16T13:34:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1441", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-14T12:29:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1370", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-12T13:54:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1654", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-20T10:32:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1635", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-20T14:08:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1607", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2016-11-22T15:28:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1577", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T09:24:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1549", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2016-11-23T10:11:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1547", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-04T11:41:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2261", "Identifier": "USEPA 200.2", "Context": "USEPA", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2021-08-04T10:11:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1463", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-01-12T16:24:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2263", "Identifier": "USEPA 200.2", "Context": "USEPA", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2014-10-21T12:02:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3068", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-07T15:11:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1684", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-01-16T14:43:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3074", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-13T14:27:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2508", "Identifier": "USEPA 200.2", "Context": "USEPA", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2017-04-28T17:01:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2473", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-16T14:23:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2175", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2013-11-07T15:32:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2160", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T13:13:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1767", "Identifier": "200.2", "Context": "USEPA", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "USEPA; 1994; Methods for the Determination of Metals in Environmental Samples, Supplement I; USEPA; EPA 600-R-94-111", "LastChangeDate": "2026-04-01T11:40:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2265", "Identifier": "USEPA 200.2", "Context": "USEPA", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2013-09-13T11:05:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3087", "Identifier": "200.2", "Context": "ZZZZZZZZ", "Name": "Preparation for Water, Soil, or Waste Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-07T15:25:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1486", "Identifier": "SOP-HG-003", "Context": "21FLGW", "Name": "Preparation for methylmercury in sediments and tissue", "QualifierType": "", "Description": "", "LastChangeDate": "2015-03-04T10:19:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1678", "Identifier": "SOP-GC-002", "Context": "21FLWPB", "Name": "Preparation for pesticides in water", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T16:21:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1493", "Identifier": "DIG-TKN-TP", "Context": "21FLBFA", "Name": "Preparation method for TKN and TP", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-20T11:43:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1691", "Identifier": "DIG-TKN-TP-2", "Context": "21FLFTM", "Name": "Preparation method for TKN and Total Phosphorus", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-20T16:08:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1436", "Identifier": "DIG-TKN-TP", "Context": "21FLCMP", "Name": "Preparation method for TKN and Total Phosphorus", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-21T11:09:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1494", "Identifier": "DIG-TP-LOW", "Context": "21FLBFA", "Name": "Preparation method for low-level phosphorus", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-20T11:43:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1492", "Identifier": "USGS O-2060-01", "Context": "21FLGW", "Name": "Preparation of Acid Herbicides and Carbamates", "QualifierType": "", "Description": "", "LastChangeDate": "2018-01-12T16:23:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1621", "Identifier": "SOP-AB02_1", "Context": "21FLCEN", "Name": "Preparation of Periphyton Diatoms", "QualifierType": "", "Description": "", "LastChangeDate": "2014-08-20T16:35:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1465", "Identifier": "351.2 SEDIMENT", "Context": "21FLGW", "Name": "Preparation of samples for total kjeldahl nitrogen analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2013-12-06T13:55:22 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1467", "Identifier": "365.4 SEDIMENT", "Context": "21FLGW", "Name": "Preparation of samples for total phoshorus analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2018-01-12T16:24:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1479", "Identifier": "MERCURY", "Context": "21FLGW", "Name": "Preparation of solid and liquid matrices for mercury analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2018-01-12T16:24:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1210", "Identifier": "LMMB055", "Context": "EPA_GLNPO", "Name": "Preparation, Handling and Extraction of Dry Dep. Plates", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1867", "Identifier": "OZAR_PREP_CHL", "Context": "11NPSWRD_WQX", "Name": "Preparing Suspended Chlorophyll a Samples for Analysis", "QualifierType": "", "Description": "Preparing Suspended Chlorophyll a Samples for Analysis. The following preparations are conducted at: Ozark National Scenic Riverways Water Quality Lab PO Box 490 Van Buren, MO 63965 Contact: Mike Gossett Email: Mike_Gossett@nps.gov Phone #: 573-323-4236 ext. 227 Chlorophyll a is used as a versatile surrogate measure of algal biomass. Samples may increase or decrease in biomass until dried and frozen; therefore samples are kept cold, in the dark and processed promptly. Two 500 ml samples are filtered through a glass fiber filter for each site. The glass fiber filter collects the algae. The glass fiber filter is then enclosed inside a larger labeled paper filter and sent to an independent lab for analysis. Procedure: 1.Empty the vacuum water collection bottle. 2.Prepare the filtration apparatus by placing two filter funnels on vacuum manifold. Close valve of third filter. 3.Place a glass fiber filter, type A\E, on each filter funnel bottom with the rough side facing up. Clamp glass tops on funnel. 4.Shake 1000 ml Nalgene sample bottle vigorously. 5.Measure two 500 ml samples using 500 ml graduated cylinders. 6.Turn on vacuum pump, vacuum pressure should be about 15 psi. 7.Gradually pour both 500 ml samples simultaneously into the two funnels. 8.Rinse the graduated cylinders three times with distilled water and filter this with the sample. Rinsing moves algae residue to the filter. 9.Allow vacuum pump to continue to dry filter for 1 minute or until most water is removed from filter. 10.Turn off vacuum pump. Check level in vacuum water collection bottle and empty if necessary. 11.Remove filter funnel tops. 12.Fold glass fiber filters in paper filters as follows. (Figure 3) a.Lift glass fiber filter from filter funnel bottom with forceps (aseptic technique not required). b.Unfold pre-labeled paper filter and place the glass fiber filter in the center of the 9 cm filter paper. c.Fold both filters in half. d.Fold corners of paper filter and staple folded corners. Do not staple through glass fiber filter. 13.Keep in dark until placed in freezer. 14.Place an entire day's samples in a labeled Ziploc bag with silica desiccant. Immediately place bag in a dark container with desiccant and store in freezer. 15.Store in light proof container in freezer till about total nitrogen samples are ready to be shipped. Contact the lab to arrange shipping date. Ship frozen, surrounded by frozen total nitrogen bottles, in insulated boxes to the independent lab for analysis. Ozark National Scenic Riverways; August 25, 2005; Standard Operating Procedures for Water Quality Monitoring-Ozark National Scenic Riverways; Ozark National Scenic Riverways; 50 pages", "LastChangeDate": "2020-10-25T22:59:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1237", "Identifier": "LMMB082", "Context": "EPA_GLNPO", "Name": "Primary Productivity Using 14C", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1166", "Identifier": "LMMB016", "Context": "EPA_GLNPO", "Name": "Primary Productivity Using 14C: Field Procedure", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:10 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2287", "Identifier": "6020", "Context": "USEPA", "Name": "Priority Pollutant Metals in Water", "QualifierType": "", "Description": "", "LastChangeDate": "2015-02-24T11:21:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1624", "Identifier": "SOP-AB11", "Context": "21FLCEN", "Name": "Procedure for Phytoplankton Sample Reciept and Sample Handling for Taxonomic Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2014-08-20T16:45:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1489", "Identifier": "SOP-TA08_01-04", "Context": "21FLGW", "Name": "Proceedure for Algal Growth Potential", "QualifierType": "", "Description": "", "LastChangeDate": "2013-12-06T14:35:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1712", "Identifier": "SOP-AB11", "Context": "21FLFTM", "Name": "Proceedure for Phytoplankton Sample Receipt and Sample Handling for Taxonomic Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2012-06-20T16:06:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1868", "Identifier": "OZAR_PREP_TN", "Context": "11NPSWRD_WQX", "Name": "Processing Total Nitrogen Samples", "QualifierType": "", "Description": "Preparing Total Nitrogen for Analysis. The following preparations are conducted at: Ozark National Scenic Riverways Water Quality Lab PO Box 490 Van Buren, MO 63965 Contact: Mike Gossett Email: Mike_Gossett@nps.gov Phone #: 573-323-4236 ext. 227 1.Use preprinted waterproof labels on each bottle. 2.Use permanent marker to write the sample date on each bottle. 3.Shake 500 ml Nalgene field sample bottle vigorously. 4.Fill two pre-labeled 60 ml Nalgene bottles to 1\4\" below the shoulder. 5.Replace cap and tighten securely. 6.Store bottles in freezer until shipment date. 7.Record total number of bottles filled on Sample Tracking Sheet (see Appendix 4) 8.Store frozen till about 250 bottles are ready. Contact the lab to arrange shipping date. Ship frozen in insulated boxes to the independent lab for analysis. Ozark National Scenic Riverways; August 25, 2005; Standard Operating Procedures for Water Quality Monitoring-Ozark National Scenic Riverways; Ozark National Scenic Riverways; 50 pages", "LastChangeDate": "2020-10-25T23:00:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1869", "Identifier": "OZAR_PREP_TP", "Context": "11NPSWRD_WQX", "Name": "Processing Total Phosphorus Samples", "QualifierType": "", "Description": "Preparing Total Phosphorus for Analysis. The following preparations are conducted at: Ozark National Scenic Riverways Water Quality Lab PO Box 490 Van Buren, MO 63965 Contact: Mike Gossett Email: Mike_Gossett@nps.gov Phone #: 573-323-4236 ext. 227 1.Shake 500 ml field sample bottle vigorously. 2.Use the automatic sampling pipette to transfer a 10 ml sample into each of three new culture tubes. Use a clean tip for each sample site. 3.Replace cap and tighten securely. 4.Mark the bottom of the meniscus of the sample with a waterproof felt tip pen. 5.Record tube number on the chemistry data sheet and sample tracking sheet. 6.Store in refrigerator till about 375 tubes are ready. Contact the lab to arrange shipping date. Ship cool in insulated boxes to the independent lab for analysis. Ozark National Scenic Riverways; August 25, 2005; Standard Operating Procedures for Water Quality Monitoring-Ozark National Scenic Riverways; Ozark National Scenic Riverways; 50 pages", "LastChangeDate": "2020-10-25T23:00:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1342", "Identifier": "5030-B", "Context": "USEPA", "Name": "Purge-And-Trap for Aqueous Samples", "QualifierType": "", "Description": "USEPA; website; Test Methods for Evaluating Solid Waste, Physical\Chemical Methods; USEPA; SW-846 On-line", "LastChangeDate": "2021-03-03T15:48:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2773", "Identifier": "Lab Sample Prep", "Context": "SANFELIPE_WQX", "Name": "QAPP Lab Sample Preparation Method", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-25T13:20:22 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3243", "Identifier": "QAPP", "Context": "LTBBWATR_WQX", "Name": "QAPP standard lab prep method", "QualifierType": "", "Description": "", "LastChangeDate": "2026-01-13T14:29:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60962", "Identifier": "QSM 5.3 Table B-15", "Context": "Pace Analytical (Wisconsin)", "Name": "QSM 5.3 Table B-15", "QualifierType": "", "Description": "", "LastChangeDate": "2025-09-08T08:48:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "35", "Identifier": "R10BUNKER", "Context": "R10BUNKER", "Name": "R10BUNKER", "QualifierType": "", "Description": "EPA Region 10 Bunker Hill Coeur d'Alene Basin Superfund Site Historical sampling data lab sample preparation method ID", "LastChangeDate": "2011-05-16T20:44:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36", "Identifier": "R10DUWAMISH", "Context": "R10DUWAMISH", "Name": "R10DUWAMISH", "QualifierType": "", "Description": "All Lab Sample Preparation Methods used for R10DUWAMISH Final FS data set.", "LastChangeDate": "2011-07-08T19:15:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2647", "Identifier": "R10MIDNITE", "Context": "R10MIDNITE", "Name": "R10MIDNITE", "QualifierType": "", "Description": "Midnite Mine historical data 1978-2000 Lab Sample Preparation Methods", "LastChangeDate": "2015-04-01T18:32:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37", "Identifier": "R10PORTLANDHARBOR", "Context": "R10PORTLANDHARBOR", "Name": "R10PORTLANDHARBOR", "QualifierType": "", "Description": "", "LastChangeDate": "2011-08-10T17:49:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2587", "Identifier": "R8 EPA Lab Methods", "Context": "FTBLKNAP", "Name": "R8 EPA Laboratory Preparation Method(s)", "QualifierType": "", "Description": "", "LastChangeDate": "2019-09-16T13:54:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2568", "Identifier": "R9LSPM", "Context": "POMO989_WQX", "Name": "R9 Laboratory Sample Prep Method", "QualifierType": "", "Description": "", "LastChangeDate": "2019-12-29T15:16:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1391", "Identifier": "FLTRES", "Context": "MEDEP_WQX", "Name": "RESIDUE AFTER FILTERING (0.45 MICRON)", "QualifierType": "", "Description": "", "LastChangeDate": "2015-04-28T15:13:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1942", "Identifier": "00515", "Context": "00515", "Name": "RESIDUE, DISSOLVED @105 C***", "QualifierType": "Routine Sampling", "Description": "011", "LastChangeDate": "2025-12-05T10:55:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33564", "Identifier": "Rocky Mountain", "Context": "Grab Sample", "Name": "RMRS", "QualifierType": "", "Description": "", "LastChangeDate": "2024-07-25T01:55:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1024", "Identifier": "A706", "Context": "EPA_GLNPO", "Name": "Ra226", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1025", "Identifier": "A707", "Context": "EPA_GLNPO", "Name": "Ra228", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1085", "Identifier": "GAMMA_SPEC", "Context": "EPA_GLNPO", "Name": "Radiochem by gamma spectroscopy", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "33331", "Identifier": "UVA_REFRIGERATE", "Context": "UVAVTSSS_WQX", "Name": "Refrigeration Preservation", "QualifierType": "", "Description": "Sample unfiltered, refrigerated for storage, may include pouring off into new container in the lab. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-01-25T15:48:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3061", "Identifier": "UVAVTSSS_UVA_REFRIGE", "Context": "UVAVTSSS_WQX", "Name": "Refrigeration Preservation", "QualifierType": "", "Description": "Sample unfiltered, refrigerated for storage, may include pouring off into new container in the lab. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2020-04-09T18:13:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1913", "Identifier": "UVA_REFRIGERATE", "Context": "11NPSWRD_WQX", "Name": "Refrigeration Preservation", "QualifierType": "", "Description": "Sample unfiltered, refrigerated for storage, may include pouring off into new container in the lab. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2025-12-16T13:58:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1822", "Identifier": "MIDN_UVA_REFRIGERATE", "Context": "11NPSWRD_WQX", "Name": "Refrigeration preservation", "QualifierType": "", "Description": "Sample unfiltered, refrigerated for storage, may include pouring off into new container in the lab. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2019-11-01T11:29:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60919", "Identifier": "UVA_RF_SSC_40", "Context": "11NPSWRD_WQX", "Name": "Refrigeration, filtration using 40 mL crucible", "QualifierType": "", "Description": "Refrigerate sample. Sample filtered for suspended sediment concentration using Coorstek-brand 40 mL porcelain Gooch crucible. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2024-02-09T16:54:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1823", "Identifier": "MIDN_UVA_RF_SSC_40", "Context": "11NPSWRD_WQX", "Name": "Refrigeration, filtration using 40 mL crucible", "QualifierType": "", "Description": "Refrigerate sample. Sample filtered for suspended sediment concentration using Coorstek-brand 40 mL porcelain Gooch crucible. Unknown; 19--; No Cite - Method Not Cited; Unknown; Vol --", "LastChangeDate": "2019-11-01T11:27:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1326", "Identifier": "EPA LAB", "Context": "EPA LAB", "Name": "Region 6 Inorganics Lab Houston", "QualifierType": "", "Description": "", "LastChangeDate": "2016-11-30T12:36:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2581", "Identifier": "Region 8 laboratory", "Context": "Fort Peck", "Name": "Region 8 Laboratory Sample Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-06T18:49:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2580", "Identifier": "R8 LSPM", "Context": "BLACKFEET", "Name": "Region 8 Laboratory Sample Prep", "QualifierType": "", "Description": "The Laboratory Sample Preparation Procedures as according to the Region 8 Laboratories", "LastChangeDate": "2024-10-24T08:14:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2588", "Identifier": "R8 LSPM", "Context": "MHA_NATN", "Name": "Region 8 Laboratory Sample Prep", "QualifierType": "", "Description": "The Laboratory Sample Preparation Procedures as according to the Region 8 Laboratories", "LastChangeDate": "2025-07-14T12:16:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2591", "Identifier": "R8 LSPM", "Context": "NTHRNUTE", "Name": "Region 8 Laboratory Sample Prep", "QualifierType": "", "Description": "The Laboratory Sample Preparation Procedures as according to the Region 8 Laboratories", "LastChangeDate": "2025-02-27T07:20:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1912", "Identifier": "UVA_QFF_RES_BRCL", "Context": "11NPSWRD_WQX", "Name": "Residue with BrCl Preservation", "QualifierType": "", "Description": "Captured residue and pre-baked quartz fiber filter (Whatman QM-A grade, 2.2 mm 98% efficiency particle retention in liquid) placed in Teflon bottle and 100 ml of 5% bromine chloride (BrCl) added, submerging filter. The bottle is capped and placed in a 50 C oven for 5 days to leach all Hg on filter into solution. The solution is stored at room temperature. Olund, S. D., DeWild, J. F., Olson, M. L., & Tate, M. T.; 2004; Methods for the preparation and analysis of solids and suspended solids for total mercury in \"U.S. Geological Survey Techniques and Methods\".; U.S. Geological Survey; Chapter A8, Book 5.", "LastChangeDate": "2025-12-15T17:32:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1923", "Identifier": "WRST_EPRSC", "Context": "11NPSWRD", "Name": "Rock Sample Crushing and Jones Splitter", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:28:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1916", "Identifier": "WICR_RODGR_SEDP", "Context": "11NPSWRD", "Name": "Rodgers Sediment Preparation by Drying, Disaggregation, Sieving, and Aqua Regia Digestion", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T19:16:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1875", "Identifier": "SCCP_77_WETADIG", "Context": "11NPSWRD", "Name": "SCCWRP 1977 & 1985 Reference Surveys Wet-acid Digestion of Sediment Samples For Metals Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2018-10-16T18:45:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1873", "Identifier": "SCCP_03_ACETONE", "Context": "11NPSWRD", "Name": "SCCWRP03 90% Acetone Extraction for Chlorophyll and Phaeopigment", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-14T10:01:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1874", "Identifier": "SCCP_77_HEFCE", "Context": "11NPSWRD", "Name": "SCCWRP77 Hexane Extraction and Florisil Column Elution of Sediment Samples For Pesticide Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2018-10-15T17:50:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1878", "Identifier": "SCCP_85_TOCPREP", "Context": "11NPSWRD", "Name": "SCCWRP85 Oven-Drying of Sediment Samples for Total Organic Carbon Analysis", "QualifierType": "", "Description": "", "LastChangeDate": "2018-10-16T18:45:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1876", "Identifier": "SCCP_85_SEDEXTR", "Context": "11NPSWRD", "Name": "SCCWRP85 Sediment Extraction with Chloroform and Methanol for Trace Organics", "QualifierType": "", "Description": "", "LastChangeDate": "2018-10-16T18:45:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1877", "Identifier": "SCCP_85_TISPREP", "Context": "11NPSWRD", "Name": "SCCWRP85 Tissue Removal, Preservation, and Wet Extraction with Chloroform and Methanol 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"Identifier": "SW846 7471A", "Context": "Pace Analytical (formerly EnChem)", "Name": "SW846 7471A", "QualifierType": "", "Description": "", "LastChangeDate": "2017-11-27T10:17:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61096", "Identifier": "SW846 9060", "Context": "Pace Analytical (formerly EnChem)", "Name": "SW846 9060", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-18T10:40:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2459", "Identifier": "SW846 9060M", "Context": "Pace Analytical (formerly EnChem)", "Name": "SW846 9060M", "QualifierType": "", "Description": "", "LastChangeDate": "2025-12-01T10:37:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1409", "Identifier": "SW3550B", "Context": "MEDEP_WQX", "Name": "SW846 :ULTRASONIC EXTRACTION", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T12:35:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2460", "Identifier": "SW846 M3050B", "Context": "Pace Analytical (Wisconsin)", "Name": "SW846 M3050B", "QualifierType": "", "Description": "", "LastChangeDate": "2018-01-26T13:17:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2461", "Identifier": "SW8467060A", "Context": "Wisconsin State Laboratory of Hygiene", "Name": "SW8467060A", "QualifierType": "", "Description": "", "LastChangeDate": "2025-11-19T15:09:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1404", "Identifier": "SW3050B", "Context": "MEDEP_WQX", "Name": "SW846: ACID DIGESTION OF SEDIMENTS, SLUDGES, AND SOILS", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T12:47:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1410", "Identifier": "SW3611", "Context": "MEDEP_WQX", "Name": "SW846: ALUMINA COLUMN CLEANUP AND SEPARATION OF PETROLEUM WASTES", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-02T09:49:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1403", "Identifier": "SW3040", "Context": "MEDEP_WQX", "Name": "SW846: DISSOLUTION PROCEDURE FOR OILS, GREASES, OR WAXES", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-18T14:10:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1411", "Identifier": "SW7471A", "Context": "MEDEP_WQX", "Name": "SW846: MERCURY IN SOLID OR SEMISOLID WASTE (MANUAL COLD-VAPOR TECH)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T12:47:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1405", "Identifier": "SW3051", "Context": "MEDEP_WQX", "Name": "SW846: MICROWAVE ASSISTED ACID DIGESTION OF SOILS, SEDIMENTS, SLUDGES AND OIL", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T12:47:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1406", "Identifier": "SW3051A", "Context": "MEDEP_WQX", "Name": "SW846: MICROWAVE ASSISTED ACID DIGESTION OF SOILS, SEDIMENTS, SLUDGES AND OIL", "QualifierType": "", "Description": "", "LastChangeDate": "2015-11-30T13:23:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1407", "Identifier": "SW3540C", "Context": "MEDEP_WQX", "Name": "SW846: SOXHLET EXTRACTION", "QualifierType": "", "Description": "", "LastChangeDate": "2014-04-25T12:35:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1408", "Identifier": "SW3550", "Context": "MEDEP_WQX", "Name": "SW846: ULTRASONIC EXTRACTION", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-02T09:57:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2462", "Identifier": "SW9010B", "Context": "TestAmerica", "Name": "SW9010B", "QualifierType": "", "Description": "", "LastChangeDate": "2026-03-24T18:20:02 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1160", "Identifier": "LMMB010", "Context": "EPA_GLNPO", "Name": "Sample Collection of Atrazine and Atrazine Metabolites", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:08 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1833", "Identifier": "NPS_DILUTION", "Context": "11NPSWRD_WQX", "Name": "Sample Dilution", "QualifierType": "", "Description": "", "LastChangeDate": "2026-05-30T02:22:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1838", "Identifier": "NPS_FILTERED", "Context": "11NPSWRD", "Name": "Sample Filtered in Laboratory Prior to Analysis - Unspecified filter size", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-08T14:30:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3114", "Identifier": "4500-P B5", "Context": "APHA", "Name": "Sample Preparation Method - Persulfate Digestion", "QualifierType": "", "Description": "", "LastChangeDate": "2020-01-21T09:31:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2596", "Identifier": "4500-P B5", "Context": "APHA", "Name": "Sample Preparation Method - Persulfate Digestion", "QualifierType": "", "Description": "", "LastChangeDate": "2018-02-12T13:07:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2674", "Identifier": "Lab Samp Prep Method", "Context": "JAMUL_WQX", "Name": "Sample Preparation Method for Laboratory Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-29T14:42:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1340", "Identifier": "4500-P-B", "Context": "APHA", "Name": "Sample Preparation for Phosphorus", "QualifierType": "", "Description": "American Public Health Association; 2012; Standard Methods for the Examination of Water and Wastewater, 22nd Edition.; American Public Health Association; 22nd Edition", "LastChangeDate": "2021-03-03T15:48:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "59732", "Identifier": "SM 4500-P-B-11", "Context": "WVDEP_WQX", "Name": "Sample Preparation for Phosphorus (Standard Methods\APHA, 2011)", "QualifierType": "", "Description": "", "LastChangeDate": "2024-03-04T17:10:50 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1321", "Identifier": "alpha coefficient B", "Context": "CBP_WQX", "Name": "Sample Results Using an absorption coefficient alpha, the intensity of light at depth. given as a fraction per distance", "QualifierType": "", "Description": "", "LastChangeDate": "2025-09-29T09:55:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1322", "Identifier": "alpha coefficient A", "Context": "CBP_WQX", "Name": "Sample Results Using an absorption coefficient alpha, the intensity of light at depth. given as a fraction per distance", "QualifierType": "", "Description": "", "LastChangeDate": "2025-09-29T09:55:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1330", "Identifier": "after_acidification", "Context": "CBP_WQX", "Name": "Sample Results after acidification", "QualifierType": "", "Description": "", "LastChangeDate": "2017-04-06T10:51:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1324", "Identifier": "after_acidification", "Context": "WQXTEST", "Name": "Sample Results after acidification", "QualifierType": "", "Description": "", "LastChangeDate": "2020-04-11T18:41:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1329", "Identifier": "before_acidification", "Context": "CBP_WQX", "Name": "Sample Results before acidification", "QualifierType": "", "Description": "", "LastChangeDate": "2017-04-06T10:50:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1323", "Identifier": "before_acidification", "Context": "WQXTEST", "Name": "Sample Results before acidification", "QualifierType": "", "Description": "", "LastChangeDate": "2018-03-05T13:11:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28128", "Identifier": "40004K", "Context": "40004K", "Name": "Sample Weight ,g", "QualifierType": "Routine Sampling", "Description": "059", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "44", "Identifier": "EW-WA:Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses", "QualifierType": "", "Description": "EMAP-West Washington 1999-2003 procedures: NH4, DIP, DIN, NO3, NO2, and Si were prepped for analytical procedures for a Technicon AutoAnalyzer II. Total suspended solids samples were prepped using EPA procedure EPA 160.2. Dissolved inorganic phosphate samples were prepped using a modification of the Bernhardt and Wilhelms (1967) method. Silicate samples were prepped using the basic method of Armstrong et al. (1967). A modification of the Slawyk and MacIsaac (1972) procedure was used to prep ammonium samples. A modification of the Armstrong et al. (1967) procedure was used to prep nitrate and nitrite samples.", "LastChangeDate": "2011-10-20T10:50:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "43", "Identifier": "EW: CA Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses", "QualifierType": "", "Description": "EMAP-West California 1999-2003 procedures: Chlorophyll a and phaeophytin pigments were extracted from filters with 90% acetone. Total suspended solids were prepped using SM2540D. Ammonium (NH4-N) and Nitrate (NO3-N) were prepped using SM4500NH3. Nitrite (NO2) was prepped using SM4500NO3. Ortho-phosphate (PO4) was prepped using SM4500P.", "LastChangeDate": "2011-10-20T10:50:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "45", "Identifier": "EW-OR:Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses", "QualifierType": "", "Description": "EMAP-West Oregon 1999-2003 procedures: NH4, DIP, DIN, NO3, NO2, and Si were prepped for analytical procedures for a Technicon AutoAnalyzer II. Total suspended solids samples were prepped using EPA procedure EPA-160.2. Dissolved inorganic phosphate samples were prepped using EPA-365.2. Silicate samples were prepped using the basic method of Armstrong et al. (1967). EPA-350.1 procedure was used to prep ammonium samples. A modification of US EPA Method 353.2 (Nitrite + Nitrate (method EPA-353.2). US EPA. Method 353.2 Nitrogen, Nitrate-Nitrite (Colorimetric, Automated, Cadmium Reduction). Total. Revised. 1978) was used to prep nitrate, nitrite and Nitrite + Nitrate samples. Chlorophyll a and phaeophyton were prepped using EPA method 445.0.", "LastChangeDate": "2011-10-20T10:50:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "52", "Identifier": "EWCA04-06:Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water", "QualifierType": "", "Description": "EMAP-West California 2004-2006 procedures: NH4, DIP, DIN, NO3, and NO2 were prepped for analytical procedures for a Technicon AutoAnalyzer II. Total suspended solids samples were prepped using SM2540D Modified. Chlorophyll a samples were prepped using EPA 445.0 Modified.", "LastChangeDate": "2011-11-14T08:45:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "51", "Identifier": "EW: OR01 Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water", "QualifierType": "", "Description": "EMAP-West Oregon 2001 procedures: Ammonium samples were prepped according to SM4500NH3B: Flow Injection Analysis System-Method B. No preparation reference presented for other analytes.", "LastChangeDate": "2011-11-14T08:40:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "42", "Identifier": "EWC: Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water", "QualifierType": "", "Description": "Nutrients and chlorophyll a: a disposable, graduated 50-cc polypropylene syringe fitted with a stainless steel or polypropylene filtering assembly was used to filter a parent water sample through 25 or 47 mm GF\F filters. 100-1,500 ml seawater was filtered. 1 ml of saturated MgCO3 was then filtered through each pad to buffer the chlorophyll sample against degradation. CHLA and PHAE pigments were extracted from filter with 90% acetone. Approximately 40 ml of filtrate was preserved for nutrient analyses in a 60 ml HPDE bottle. Total suspended solids: approximately 1 liter of unfiltered seawater was taken from the water sampler at discrete depths and poured into a 1 L polypropylene bottle.", "LastChangeDate": "2011-11-14T08:40:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "41", "Identifier": "IN: Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water", "QualifierType": "", "Description": "Subsamples were withdrawn for nutrients (orthophosphate, nitrate, nitrite, ammonia) and dissolved silica. The nutrient samples were collected in acid-rinsed polyethylene bottles that had been triple-rinsed with the sample water. These samples were held on ice for transportation to the laboratory. The nutrient samples were filtered through Whatman glass fiber filters (GF\F, 0.7 um particle retention) into 125-ml acid-washed, triple-rinsed |polyethylene bottles and immediately placed on ice. Samples were air shipped to the NCA |national contract laboratory for analysis.", "LastChangeDate": "2011-11-14T08:40:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "39", "Identifier": "EW: Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water", "QualifierType": "", "Description": "Nutrients and chlorophyll a: a disposable, graduated 50-cc polypropylene syringe fitted with a stainless steel or polypropylene filtering assembly was used to filter a parent water sample through 25 or 47 mm GF\F filters. 100-1,500 ml seawater was filtered. 1 ml of saturated MgCO3 was then filtered through each pad to buffer the chlorophyll sample against degradation. Approximately 40 ml of filtrate was preserved for nutrient analyses in a 60 ml Nalgene bottle. Total suspended solids: approximately 1 liter of unfiltered seawater was taken from the water sampler at discrete depths and poured into a 1 L polypropylene bottle.", "LastChangeDate": "2011-11-14T08:40:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "53", "Identifier": "EWWA04-06:Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water", "QualifierType": "", "Description": "EMAP-West Washington 2004-2006 procedures: Chlorophyll a samples were prepped using a 90% Acetone method: 90% Acetone Extract for chlorophyll a and phaeopigment.", "LastChangeDate": "2011-11-14T08:43:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "58", "Identifier": "IN-GU:Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water", "QualifierType": "", "Description": "EMAP-West Guam 2004 procedures: Total suspended solids samples were prepped for analysis using SM2540D. Dissolved inorganic phosphate samples were prepped for analysis using SM4500P method for a Flow Injection Analysis System. Ammonium samples were prepped for analysis using EPA-350.1 procedure: Nitrogen, Ammonia - Semi-Automated Colotimetry. US EPA Method 353.2 was used to prepare Nitrate and Nitrite samples for analysis: Nitrogen, Nitrate-Nitrite - Colorimetric\Cadmium.", "LastChangeDate": "2011-11-18T11:01:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "54", "Identifier": "EWOR04-06:Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water", "QualifierType": "", "Description": "EMAP-West Oregon 2004-06 procedures: NH4 and NO3+NO2 were prepped for analytical procedures for a Technicon AutoAnalyzer II. SM4500NH3B procedure was used to prep ammonium samples: Flow Injection Analysis System Method B. Chlorophyll a samples were prepped using EPA method 445.0.", "LastChangeDate": "2011-11-14T08:45:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "47", "Identifier": "EW: CA SMB Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water: Santa Monica Bay", "QualifierType": "", "Description": "EMAP-West California Santa Monica Bay 2003 procedures: Chlorophyll a was prepped using 90% Acetone Extract. Ammonium (NH4-N), Nitrate (NO3-N), |Nitrite (NO2) and Silicate were prepped to be analyzed using a AlpKem RFA 300 Series Nutrient Analyzer.", "LastChangeDate": "2011-11-14T08:40:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "50", "Identifier": "EW: CA MB Nutrients", "Context": "EMAP_CS_WQX", "Name": "Sample preparation for nutrient analyses in sea water: Santa Morro Bay", "QualifierType": "", "Description": "EMAP-West California Morro Bay 2003 procedures: Chlorophyll a was prepped using In Vitro Chlorophyll by fluoresence by the Welschmeyer non-acidic method. Total suspended solids were prepared using modified SM 2040D.", "LastChangeDate": "2011-11-14T08:40:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2247", "Identifier": "CBL001", "Context": "MDEDAT01", "Name": "Sample preparation of biotic tissue used by Chesapeake Biological Laboratory - yr01", "QualifierType": "", "Description": "\"Data on Trace Organic Contaminants in Water, Sediments and the Biota\". Assessment of the Environmental Impacts of Construction and Operation of the Hart and Miller Islands Containment Facility, 1981 - 1982", "LastChangeDate": "2011-09-08T12:48:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1171", "Identifier": "LMMB021", "Context": "EPA_GLNPO", "Name": "Sampling Lake Michigan Lower Pelagic Foodchain", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1511", "Identifier": "Standard Procedure", "Context": "CT DEP", "Name": "Sampling Preparation", "QualifierType": "", "Description": "Standard Laboratory Preparation Method", "LastChangeDate": "2014-10-23T12:48:11 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1154", "Identifier": "LMMB004", "Context": "EPA_GLNPO", "Name": "Sampling Trace Metals in Precipitation", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1127", "Identifier": "LG302", "Context": "EPA_GLNPO", "Name": "Sampling and Analysis of Total Suspended Solids", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T15:23:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1253", "Identifier": "LMMB098", "Context": "EPA_GLNPO", "Name": "Sampling and Analysis of Total Suspended Solids", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:35 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1157", "Identifier": "LMMB007", "Context": "EPA_GLNPO", "Name": "Sampling of Mercury in Precipitation", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1158", "Identifier": "LMMB008", "Context": "EPA_GLNPO", "Name": "Sampling of Particulate Phase Mercury", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1117", "Identifier": "LG206", "Context": "EPA_GLNPO", "Name": "Sampling of Particulate-Phase Organic C, N and P", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T10:24:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1121", "Identifier": "LG210", "Context": "EPA_GLNPO", "Name": "Sampling of Particulate-Phase and Dissolved-Phase Organic C", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1164", "Identifier": "LMMB014", "Context": "EPA_GLNPO", "Name": "Sampling of Particulate-Phase and Dissolved-Phase Organic C", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1156", "Identifier": "LMMB006", "Context": "EPA_GLNPO", "Name": "Sampling of Vapor Phase Mercury", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2751", "Identifier": "F70335", "Context": "F70335", "Name": "Sands****", "QualifierType": "Stormwater Sampling", "Description": "", "LastChangeDate": "2014-10-31T09:52:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2151", "Identifier": "F70335", "Context": "F70335", "Name": "Sands****", "QualifierType": "Stormwater Sampling", "Description": "", "LastChangeDate": "2025-11-17T13:59:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2264", "Identifier": "SAT-PASTE", "Context": "MDEQ-WQ_WQX", "Name": "Saturated Paste Preparation", "QualifierType": "", "Description": "", "LastChangeDate": "2010-04-23T11:50:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2145", "Identifier": "F00078", "Context": "F00078", "Name": "Secchi Disk Reading****", "QualifierType": "Routine Sampling", "Description": "", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1659", "Identifier": "3550B", "Context": "21FLWPB", "Name": "Sediment", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-19T16:22:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1859", "Identifier": "NPS_SMW_BD", "Context": "11NPSWRD", "Name": "Sediment Beaker Digestion Concentrated 5 ml Double Distilled HNO3", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T13:28:14 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1924", "Identifier": "WRST_EPSED80200", "Context": "11NPSWRD", "Name": "Sediment Drying and Sieving 80 to 200 Mesh Method of Peacock and Others 1996", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:27:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1921", "Identifier": "WRST_EPPSED200", "Context": "11NPSWRD", "Name": "Sediment Drying and Sieving at 200 Mesh Method of Peacock and Others 1996", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:27:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1922", "Identifier": "WRST_EPPSED80", "Context": "11NPSWRD", "Name": "Sediment Drying and Sieving at 80 Mesh Method of Peacock and Others 1996", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:28:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1862", "Identifier": "NPS_SMW_SOSE", "Context": "11NPSWRD", "Name": "Sediment Samples Extracted With Acetone and Petroleum Ether", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T13:28:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1855", "Identifier": "NPS_NURE_SR100", "Context": "11NPSWRD", "Name": "Sediment Sieved to -100 mesh and dried at less than or equal to 110 degrees C at the lab", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-14T10:10:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1893", "Identifier": "SEDSIEVELT2MM", "Context": "11NPSWRD", "Name": "Sediment Sieved to <2mm", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-14T09:42:43 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1894", "Identifier": "SEDSIEVELT63UM", "Context": "11NPSWRD", "Name": "Sediment Sieved to <63 micrometers", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-12T13:53:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1863", "Identifier": "NPS_SMW_STVD", "Context": "11NPSWRD", "Name": "Sediment Teflon Vessel Digestion 4:1 concentrated HNO3: Concentrated HClO4 Mixture", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T13:28:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1272", "Identifier": "SED_10D_SURV", "Context": "EPA_GLNPO", "Name": "Sediment bioassay 10-day survival", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1853", "Identifier": "NPS_NURE_LL1835", "Context": "11NPSWRD", "Name": "Sediment dried at 110°C and sieved to -18 and +35 mesh. Lawrence Livermore Lab Procedure", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T13:20:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1847", "Identifier": "NPS_NURE_1035", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -10 and +35 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T17:34:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1845", "Identifier": "NPS_NURE_100170", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -100 and +170 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-08T18:01:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1846", "Identifier": "NPS_NURE_100230", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -100 and +230 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T17:34:53 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1844", "Identifier": "NPS_NURE_100", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -100 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-14T10:04:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1848", "Identifier": "NPS_NURE_170230", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -170 and +230 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-08T18:01:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1850", "Identifier": "NPS_NURE_230", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -230 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-08T18:01:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1851", "Identifier": "NPS_NURE_3560", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -35 and +60 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T17:34:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1852", "Identifier": "NPS_NURE_60100", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -60 and +100 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-02T17:34:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1843", "Identifier": "NPS_NURE_080", "Context": "11NPSWRD", "Name": "Sediment dried at less than or equal to 100 degrees C, sieved to -80 mesh through stainless steel sieves", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-14T09:28:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "8", "Identifier": "NCA:NSTP", "Context": "EMAP_CS_WQX", "Name": "Sediment extraction for organic analyses", "QualifierType": "", "Description": "For the organic analyses, sediments were extracted using the procedures of NOAA National Status and Trends Program (Lauenstein and Cantillo, 1993).", "LastChangeDate": "2009-10-15T11:37:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1849", "Identifier": "NPS_NURE_18-100", "Context": "11NPSWRD", "Name": "Sediment sample dried (if necessary) at less than or equal to 110 degree C, sieved to -18 mesh and +100 mesh", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-12T09:25:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1854", "Identifier": "NPS_NURE_S18100", "Context": "11NPSWRD", "Name": "Sediment sieved to -18 and +100 mesh and dried at less than or equal to 110 degrees C. Savannah R. Lab Procedure.", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T08:57:03 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "21", "Identifier": "GRE:SedEnz", "Context": "EMAP_GRE", "Name": "Sediment: Lab Prep for Enzyme determination", "QualifierType": "", "Description": "Frozen sediment samples are thawed. Subsamples (0.5-2.0g wet weight) are weighed into 125 mL Nalgene bottles and either refrozen until analysis, or used immediately. Seventy-five (75) ml acetate buffer is added to a stored, refrigerated sample and homogenized. An additional 50 ml of buffer is added. Prepared samples are stored in the refrigerator until analysis.", "LastChangeDate": "2009-11-10T12:56:23 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "15", "Identifier": "GRE:Sed-Org", "Context": "EMAP_GRE", "Name": "Sediment: Lab Prep for organic analyses", "QualifierType": "", "Description": "Grind wet sediment sample (minimum of 15 g) in a clean glass mortar w\20 g of baked sodium sulfate; dry 1 hr. Reduce the sample mass if samples > 50% water. Extract samples w\acteone and hexane using Dionex ASE-200 Accelerated Solvent Extractor. Concentrate the ASE extracts to approximately 3 mL using an N-EVAP 111 nitrogen evaporator with a 50 deg C water bath until only hexane remains.", "LastChangeDate": "2009-08-14T10:20:57 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "16", "Identifier": "GRE:Sed-Hg", "Context": "EMAP_GRE", "Name": "Sediment:Lab prep for total Hg", "QualifierType": "", "Description": "Sediment samples were prepared for total Mercury (Hg) analysis following SOP# SBI_01_108 (revision MIRB 034.1E). Samples for mercury analysis should be frozen at -10C or below. No preservation is necessary. Re-mix samples with spatula and record and weigh 2 aliquots between 0.2 g and 0.3 g.", "LastChangeDate": "2009-08-14T12:56:46 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3168", "Identifier": "See Analytical Metho", "Context": "LSWCD", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2020-07-30T14:51:12 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "60997", "Identifier": "See Analytical Metho", "Context": "PUR", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2025-01-15T19:38:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2540", "Identifier": "See Analytical Metho", "Context": "See Analytical Method", "Name": "See Analytical Method", "QualifierType": "", "Description": "Laboratory Preparation not specified for LASAR migration data", "LastChangeDate": "2026-04-21T02:17:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3092", "Identifier": "See Analytical Metho", "Context": "Applegate Watershed Council", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2019-03-22T16:19:01 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3100", "Identifier": "See Analytical Metho", "Context": "TEP", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2019-03-25T14:10:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3103", "Identifier": "See Analytical Metho", "Context": "CWQ", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2019-03-22T18:07:37 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3105", "Identifier": "See Analytical Metho", "Context": "Long Tom Watershed Council", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2020-01-30T21:54:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3107", "Identifier": "See Analytical Metho", "Context": "GGCWC", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2019-03-22T18:12:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3111", "Identifier": "See Analytical Metho", "Context": "SWC", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2019-04-23T16:03:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3166", "Identifier": "See Analytical Metho", "Context": "CRK_WQX", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2020-07-30T14:36:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3179", "Identifier": "See Analytical Metho", "Context": "SDCWC", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2020-07-30T16:56:17 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3172", "Identifier": "See Analytical Metho", "Context": "RRWC", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2020-07-30T16:16:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3174", "Identifier": "See Analytical Metho", "Context": "RVCOG", "Name": "See Analytical Method", "QualifierType": "", "Description": "", "LastChangeDate": "2020-07-30T16:21:18 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1297", "Identifier": "See USFDA QAPP", "Context": "EPA_GLNPO", "Name": "See USFDA QAPP", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28133", "Identifier": "71945", "Context": "71945", "Name": "Selenium in fish, wet weight*", "QualifierType": "Routine Sampling", "Description": "059", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1339", "Identifier": "4500-Norg-C", "Context": "APHA", "Name": "Semi-Micro-Kjeldahl Method", "QualifierType": "", "Description": "American Public Health Association; 2012; Standard Methods for the Examination of Water and Wastewater, 22nd Edition.; American Public Health Association; 22nd Edition", "LastChangeDate": "2021-03-03T15:48:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1914", "Identifier": "WICR_EST_SPMD", "Context": "11NPSWRD", "Name": "Semi-Permeable Membrane Device Dialysis and Clean-Up Into Hexane by Environmental Sampling Technologies, St. Louis, MO", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T19:16:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1188", "Identifier": "LMMB035", "Context": "EPA_GLNPO", "Name": "Semivolatile Organic Compounds in Dry Deposition Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:16 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1372", "Identifier": "3510-B", "Context": "USEPA", "Name": "Separatory Funnel Extraction, Liquid-Liquid", "QualifierType": "", "Description": "", "LastChangeDate": "2014-12-22T11:45:58 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2728", "Identifier": "3510-B", "Context": "USEPA", "Name": "Separatory Funnel Extraction, Liquid-Liquid", "QualifierType": "", "Description": "", "LastChangeDate": "2014-10-10T15:13:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2274", "Identifier": "3510-C", "Context": "ZZZZZZZZ", "Name": "Separatory Funnel Liquid-Liquid Estraction", "QualifierType": "", "Description": "", "LastChangeDate": "2013-04-12T16:10:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1774", "Identifier": "3510-C", "Context": "USEPA", "Name": "Separatory Funnel Liquid-Liquid Estraction", "QualifierType": "", "Description": "USEPA; 1998; Test Methods for Evaluating Solid Waste, Physical\Chemical Methods, 3rd Edition, Final Update III.; USEPA; SW-846_III", "LastChangeDate": "2024-06-10T19:08:55 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2513", "Identifier": "USEPA 3510C", "Context": "USEPA", "Name": "Separatory Funnel Liquid-Liquid Extraction", "QualifierType": "", "Description": "", "LastChangeDate": "2017-06-22T13:17:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1917", "Identifier": "WICR_SHADE_SEDP", "Context": "11NPSWRD", "Name": "Shade Sediment Preparation by Rinsing, Drying, Disaggregation, Acid Digestion, and Centrifugation", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T20:02:44 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1803", "Identifier": "GLKN_SIO2", "Context": "11NPSWRD_WQX", "Name": "SiO2", "QualifierType": "", "Description": "filter through a 0.45 um filter, no preservative, refrigerate Magdalene, S., D.R. Engstrom, and J.E. Elias; 2007; Standard operating procedure #7: Processing water samples and analytical laboratory requirements. in Magdalene, S., D.R. Engstrom, and J.E. Elias. 2007. Large rivers water quality monitoring protocol, Version 1.0.; National Park Service, Great Lakes Network; 11 pp.", "LastChangeDate": "2026-07-13T13:43:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1223", "Identifier": "LMMB068", "Context": "EPA_GLNPO", "Name": "Silica Dissolved, Automated, Colorimetric", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1224", "Identifier": "LMMB069", "Context": "EPA_GLNPO", "Name": "Silica, Dissolved, Micro Level Automated, Colorimetric", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1747", "Identifier": "272.2(PREP)", "Context": "21FLACEP", "Name": "Silver by GFAA (Preparation)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:08:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1162", "Identifier": "LMMB012", "Context": "EPA_GLNPO", "Name": "Site Selection and Sampling for Mercury in Lakewater", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1257", "Identifier": "LS-S", "Context": "EPA_GLNPO", "Name": "Size", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1023", "Identifier": "A-SIZE", "Context": "EPA_GLNPO", "Name": "Size", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:52:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2541", "Identifier": "Solids Prep", "Context": "Solids Prep", "Name": "Solids Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2026-08-18T03:43:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2312", "Identifier": "SM2540B", "Context": "USEPA", "Name": "Solids, Dissolved", "QualifierType": "", "Description": "", "LastChangeDate": "2013-04-11T09:45:22 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2277", "Identifier": "160.1", "Context": "USEPA", "Name": "Solids, Dissolved", "QualifierType": "", "Description": "", "LastChangeDate": "2015-02-24T11:21:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2313", "Identifier": "SM2540C", "Context": "USACE", "Name": "Solids, Dissolved", "QualifierType": "", "Description": "", "LastChangeDate": "2011-03-09T17:45:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2278", "Identifier": "160.2", "Context": "USEPA", "Name": "Solids, Suspended", "QualifierType": "", "Description": "", "LastChangeDate": "2015-02-24T11:21:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2314", "Identifier": "SM2540D", "Context": "USACE", "Name": "Solids, Suspended", "QualifierType": "", "Description": "", "LastChangeDate": "2011-03-09T17:45:07 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2293", "Identifier": "EPA160.2", "Context": "USACE", "Name": "Solids, Suspended", "QualifierType": "", "Description": "", "LastChangeDate": "2011-02-25T15:11:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2309", "Identifier": "I-3765-85", "Context": "USACE", "Name": "Solids, Suspended and Volatile Suspended", "QualifierType": "", "Description": "", "LastChangeDate": "2013-04-11T09:54:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2294", "Identifier": "EPA160.3", "Context": "USACE", "Name": "Solids, Total", "QualifierType": "", "Description": "", "LastChangeDate": "2011-02-25T15:11:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2279", "Identifier": "160.3", "Context": "USEPA", "Name": "Solids, Total", "QualifierType": "", "Description": "", "LastChangeDate": "2013-04-11T09:42:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2307", "Identifier": "I-3750-85", "Context": "USACE", "Name": "Solids, Total", 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Sampling", "Description": "612", "LastChangeDate": "2021-08-18T11:28:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2133", "Identifier": "82079", "Context": "82079", "Name": "TURBIDITY, NEPHELMETRIC", "QualifierType": "Routine Sampling", "Description": "083", "LastChangeDate": "2026-08-05T10:22:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1300", "Identifier": "TX-V", "Context": "EPA_GLNPO", "Name": "Taxon-visual", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:48 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2198", "Identifier": "EPA170.1", "Context": "21FLORAN", "Name": "Temperature, water", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-21T18:18:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2202", "Identifier": "EPA279.2", "Context": "21FLORAN", "Name": "Thallium", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-21T12:47:39 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "3244", "Identifier": "TBMSOP 55", "Context": "APHA", "Name": "The Determination of Total Coliform and E. coli by the Enzyme Substrate Coliform Test", "QualifierType": "", "Description": "", "LastChangeDate": "2020-11-30T10:02:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1918", "Identifier": "WICR_TMDL_TILE", "Context": "11NPSWRD", "Name": "Tile Preparation for TMDL Benthic Chlorophyll Collection By Brushing, Washing, and Filtering", "QualifierType": "", "Description": "", "LastChangeDate": "2018-11-13T19:17:40 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61167", "Identifier": "WAPA_3H_METALP", "Context": "11NPSWRD_WQX", "Name": "Tissue Preparation for Metals Analyses by Denton et al. 1999", "QualifierType": "", "Description": "In the laboratory, Denton and others thoroughly cleaned all biotic organisms of epiphytic growth and\or adhering particulate material before subsampling for analysis. With algae, the holdfasts and older, more encrusted portions of the plant were discarded and only the fronds were taken for analysis. With the sponges, it was also necessary to carefully pare away sediment-laden portions of the exterior and interior surfaces prior to subsampling. The sponges and ascidians were analyzed whole. The entire soft parts of the bivalves were taken for analysis. Specific tissues were removed for analysis from the sea cucumbers (dorsal body wall and hemal system), octopus (tentacle and liver), mantis shrimp (tail muscle and gonad). For the fish, axial muscle and liver were removed for analysis. Muscle samples were taken immediately below and parallel to the dorsal fin on the left side of the body for heavy metals. Tissue samples for heavy metal analysis were stored in acid-cleaned, polypropylene vials. All tissue samples were held at -20°C until required for analysis. Samples for the analysis of all metals, except mercury, were performed on tissues dried to constant weight in an oven at 60°C. Owing to the relatively high volatility of mercury, analysis was conducted on wet rather than dry tissues. Denton, G.R.W., L.P. Concepcion, H.R. Wood, V.S. Eflin, G.T. Pangelinan; 1999; Heavy Metals, PCBs, and PAHs in Marine Organisms from Four Harbor Locations on Guam, Water and Energy Research Institute of the Western Pacific (WERI) Technical Report No. 87, June 30, 1999; Water and Energy Research Institute of the Western Pacific (WERI), University of Guam, Mangilao, Guam; 158 pp.", "LastChangeDate": "2026-02-24T11:39:24 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "61168", "Identifier": "WAPA_3H_PCBPAHP", "Context": "11NPSWRD_WQX", "Name": "Tissue Preparation for PCB and PAH Analyses by Denton et al. 1999", "QualifierType": "", "Description": "In the laboratory, Denton and others thoroughly cleaned all biotic organisms of epiphytic growth and\or adhering particulate material before subsampling for analysis. With algae, the holdfasts and older, more encrusted portions of the plant were discarded and only the fronds were taken for analysis. With the sponges, it was also necessary to carefully pare away sediment-laden portions of the exterior and interior surfaces prior to subsampling. The sponges and ascidians were analyzed whole. The entire soft parts of the bivalves were taken for analysis. Specific tissues were removed for analysis from the sea cucumbers (dorsal body wall and hemal system), octopus (tentacle and liver), mantis shrimp (tail muscle and gonad). For the fish, axial muscle and liver were removed for analysis. Muscle samples were taken immediately below and parallel to the dorsal fin on the right side of the body for PCBs and PAHs. Tissue samples for PCB and PAH analyses were wrapped in aluminum foil and placed in precleaned glass jars. All tissue samples were held at -20°C until required for analysis. Denton, G.R.W., L.P. Concepcion, H.R. Wood, V.S. Eflin, G.T. Pangelinan; 1999; Heavy Metals, PCBs, and PAHs in Marine Organisms from Four Harbor Locations on Guam, Water and Energy Research Institute of the Western Pacific (WERI) Technical Report No. 87, June 30, 1999; Water and Energy Research Institute of the Western Pacific (WERI), University of Guam, Mangilao, Guam; 158 pp.", "LastChangeDate": "2026-02-24T11:39:25 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "23", "Identifier": "NCA:FishTis-Org", "Context": "EMAP_CS_WQX", "Name": "Tissue extraction for organic analyses", "QualifierType": "", "Description": "For the organic analyses, analytes were extracted from tissue using the procedures of NOAA National Status and Trends Program (Lauenstein et al., 1993).", "LastChangeDate": "2009-10-16T15:48:51 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2732", "Identifier": "70508", "Context": "70508", "Name": "Total Acidity", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2124", "Identifier": "70508", "Context": "70508", "Name": "Total Acidity as CaCO3 @ pH 8.3", "QualifierType": "Routine Sampling", "Description": "015", "LastChangeDate": "2026-08-05T10:22:31 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28125", "Identifier": "TOTAD", "Context": "TOTAD", "Name": "Total Aldrin & Dieldrin", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1246", "Identifier": "LMMB091", "Context": "EPA_GLNPO", "Name": "Total Alkalinity Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:33 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "23104", "Identifier": "00420C", "Context": "00420C", "Name": "Total CO2 MG\L", "QualifierType": "Routine Sampling", "Description": "122", "LastChangeDate": "2026-08-05T10:20:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28124", "Identifier": "TCHLOR", "Context": "TCHLOR", "Name": "Total Chlordanes", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1975", "Identifier": "00940A", "Context": "00940A", "Name": "Total Chloride-Colorimetric", "QualifierType": "Routine Sampling", "Description": "087", "LastChangeDate": "2026-08-05T10:22:30 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2700", "Identifier": "00940", "Context": "00940", "Name": "Total Chloride-Ion Chromatograph", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:05 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1974", "Identifier": "00940", "Context": "00940", "Name": "Total Chloride-Ion Chromatograph", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28154", "Identifier": "31501", "Context": "31501", "Name": "Total Coliform", "QualifierType": "Routine Sampling", "Description": "B001", "LastChangeDate": "2021-08-19T08:36:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2231", "Identifier": "SM9222B", "Context": "21FLORAN", "Name": "Total Coliform", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-21T12:46:47 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1965", "Identifier": "00720D", "Context": "00720D", "Name": "Total Cyanide", "QualifierType": "Routine Sampling", "Description": "997", "LastChangeDate": "2025-11-17T09:06:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28126", "Identifier": "TOTDDT", "Context": "TOTDDT", "Name": "Total DDTs", "QualifierType": "Routine Sampling", "Description": "PESTF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "25338", "Identifier": "TOTPCB", "Context": "TOTPCB", "Name": "Total Detected PCBs", "QualifierType": "Routine Sampling", "Description": "PCBF", "LastChangeDate": "2026-08-05T10:21:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "25336", "Identifier": "1336363", "Context": "1336363", "Name": "Total Detected PCBs", "QualifierType": "Routine Sampling", "Description": "", "LastChangeDate": "2025-11-17T14:00:15 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2560", "Identifier": "515TDS", "Context": "SDDENR_WQX", "Name": "Total Dissolved Solids", "QualifierType": "", "Description": "", "LastChangeDate": "2013-02-28T21:29:00 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2226", "Identifier": "SM2540C", "Context": "21FLORAN", "Name": "Total Dissolved Solids in Water", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2232", "Identifier": "SM9222D", "Context": "21FLORAN", "Name": "Total Fecal Coliform", "QualifierType": "", "Description": "", "LastChangeDate": "2018-12-05T11:59:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1978", "Identifier": "00951", "Context": "00951", "Name": "Total Fluoride-Ion Chromatograph", "QualifierType": "Routine Sampling", "Description": "011", "LastChangeDate": "2025-12-05T10:55:56 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37015", "Identifier": "LMMB095", "Context": "WQXWEBTRAINING1", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T18:09:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37460", "Identifier": "LMMB095", "Context": "WQXWEBTRAINING5", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:07:26 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "38370", "Identifier": "LMMB095", "Context": "WQXWEBTRAINING9", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:09:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1250", "Identifier": "LMMB095", "Context": "EPA_GLNPO", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:34 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "38357", "Identifier": "LMMB095", "Context": "WQXWEBTRAINING8", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:09:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37688", "Identifier": "LMMB095", "Context": "WQXWEBTRAINING6", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:07:41 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "36994", "Identifier": "LMMB095", "Context": "WQXWEBTRAINING", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2022-10-02T17:49:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37057", "Identifier": "LMMB095", "Context": "WQXWEBTRAINING4", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:05:38 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "37916", "Identifier": "LMMB095", "Context": "WQXWEBTRAINING7", "Name": "Total Hardness Titration", "QualifierType": "", "Description": "", "LastChangeDate": "2023-03-28T12:07:36 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "28150", "Identifier": "00685", "Context": "00685", "Name": "Total Inorganic Carbon", "QualifierType": "Routine Sampling", "Description": "612", "LastChangeDate": "2021-08-17T10:29:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2285", "Identifier": "351.4", "Context": "USEPA", "Name": "Total Kjeldahl Nitrogen", "QualifierType": "", "Description": "", "LastChangeDate": "2015-02-24T11:21:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2298", "Identifier": "EPA351.2", "Context": "USACE", "Name": "Total Kjeldahl Nitrogen", "QualifierType": "", "Description": "", "LastChangeDate": "2014-03-06T10:58:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "23109", "Identifier": "00625A", "Context": "00625A", "Name": "Total Kjeldahl Nitrogen", "QualifierType": "Routine Sampling", "Description": "997", "LastChangeDate": "2025-11-17T09:06:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1231", "Identifier": "LMMB076", "Context": "EPA_GLNPO", "Name": "Total Kjeldahl Nitrogen (Lachat Method)", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1442", "Identifier": "351.2", "Context": "21FLA", "Name": "Total Kjeldahl Nitrogen Prep", "QualifierType": "", "Description": "", "LastChangeDate": "2014-05-13T14:21:45 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1805", "Identifier": "GLKN_TOTALHG", "Context": "11NPSWRD_WQX", "Name": "Total Mercury", "QualifierType": "", "Description": "USEPA; 1999; Method 1631, rev B: Mercury in Water by Oxication, Purge and Trap, and Cold Vapor Atomic Fluorescence Spectrometry.; USEPA; EPA 821\R-99-005", "LastChangeDate": "2025-03-22T04:33:20 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1204", "Identifier": "LMMB049", "Context": "EPA_GLNPO", "Name": "Total Mercury Analysis in Aqueous Samples", "QualifierType": "", "Description": "", "LastChangeDate": "2016-04-19T12:53:21 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2288", "Identifier": "7471A", "Context": "USEPA", "Name": "Total Mercury in Water", "QualifierType": "", "Description": "", "LastChangeDate": "2015-02-24T11:17:27 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2303", "Identifier": "EPA9.3", "Context": "USACE", "Name": "Total Metals", "QualifierType": "", "Description": "", "LastChangeDate": "2014-03-05T17:04:09 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2165", "Identifier": "200.7-T", "Context": "ZZZZZZZZ", "Name": "Total Metals Preparation for EPA 200.2", "QualifierType": "", "Description": "", "LastChangeDate": "2019-01-24T14:46:06 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1535", "Identifier": "200.7-T", "Context": "ZZZZZZZZ", "Name": "Total Metals Preparation for EPA 200.2", "QualifierType": "", "Description": "", "LastChangeDate": "2012-11-01T07:54:54 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1956", "Identifier": "00630A", "Context": "00630A", "Name": "Total Nitrate & Nitrite Nitrogen", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2686", "Identifier": "00630A", "Context": "00630A", "Name": "Total Nitrate & Nitrite Nitrogen", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1955", "Identifier": "00620A", "Context": "00620A", "Name": "Total Nitrate Nitrogen-Colorimetric", "QualifierType": "Routine Sampling", "Description": "010", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2685", "Identifier": "00620", "Context": "00620", "Name": "Total Nitrate Nitrogen-Ion Chromatograph", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1954", "Identifier": "00620", "Context": "00620", "Name": "Total Nitrate Nitrogen-Ion Chromatograph", "QualifierType": "Routine Sampling", "Description": "010", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1952", "Identifier": "00615A", "Context": "00615A", "Name": "Total Nitrite Nitrogen-Colorimetric", "QualifierType": "Routine Sampling", "Description": "010", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2684", "Identifier": "00615", "Context": "00615", "Name": "Total Nitrite Nitrogen-Ion Chromatograph", "QualifierType": "Ambient Sampling", "Description": "015", "LastChangeDate": "2014-10-31T09:45:49 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1951", "Identifier": "00615", "Context": "00615", "Name": "Total Nitrite Nitrogen-Ion Chromatograph", "QualifierType": "Routine Sampling", "Description": "010", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1946", "Identifier": "00600A", "Context": "00600A", "Name": "Total Nitrogen as N", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2680", "Identifier": "00600A", "Context": "00600A", "Name": "Total Nitrogen as N *", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1148", "Identifier": "LG602", "Context": "EPA_GLNPO", "Name": "Total Nitrogen in Sediments", "QualifierType": "", "Description": "", "LastChangeDate": "2024-01-25T10:46:29 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1961", "Identifier": "00680", "Context": "00680", "Name": "Total Organic Carbon", "QualifierType": "Routine Sampling", "Description": "200", "LastChangeDate": "2026-08-05T10:22:32 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2319", "Identifier": "SM5310C", "Context": "USACE", "Name": "Total Organic Carbon", "QualifierType": "", "Description": "", "LastChangeDate": "2012-01-30T17:00:13 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2306", "Identifier": "EPA9060A", "Context": "USACE", "Name": "Total Organic Carbon", "QualifierType": "", "Description": "", "LastChangeDate": "2013-01-24T13:44:42 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2305", "Identifier": "EPA9060", "Context": "USACE", "Name": "Total Organic Carbon", "QualifierType": "", "Description": "", "LastChangeDate": "2011-02-25T15:11:28 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2289", "Identifier": "9060", "Context": "USEPA", "Name": "Total Organic Carbon", "QualifierType": "", "Description": "", "LastChangeDate": "2015-02-24T11:21:52 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2691", "Identifier": "00680", "Context": "00680", "Name": "Total Organic Carbon", "QualifierType": "Stormwater Sampling", "Description": "012", "LastChangeDate": "2014-10-31T09:52:04 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1761", "Identifier": "415.1(PREP)", "Context": "21FLACEP", "Name": "Total Organic Carbon by Combustion (Preparation)", "QualifierType": "", "Description": "", "LastChangeDate": "2014-07-07T16:15:19 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "1147", "Identifier": "LG601", "Context": "EPA_GLNPO", "Name": "Total Organic Carbon in Sediments", "QualifierType": "", "Description": "", "LastChangeDate": "2023-12-19T10:25:59 AMERICA/NEW_YORK" } , { "Domain": "Lab Sample Preparation Method(LabSamplePreparationMethod/MethodIdentifier)", "UID": "2123", 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