STORET/WQX Characteristic			chr_uid			WQX Characteristic Name / CAS#			Method Speciation
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Alkalinity, carbonate as CaCO3 			 542		===>	Calcium carbonate  471-34-1 			as CaCO3
Nitrogen, Nitrate (NO3) as N 			2416		===>	Nitrate						as N
Nitrogen, Nitrite (NO2) + Nitrate (NO3) as N 	1418		===>	Inorganic nitrogen (nitrate and nitrite)	as N
Nitrogen, ammonia as N 				2414		===>	Ammonia-nitrogen				as N
Phosphorus, orthophosphate as P 		1680		===>	Orthophosphate					as P
Sulfur, sulfate (SO4) as S 			2822		===>	Sulfate						as S
Nitrogen, Nitrite (NO2) as N 			2417		===>	Nitrite						as N
Phosphorus as P 				1674		===>	Phosphate-phosphorus				as P
Nitrogen, ammonia (NH3) as NH3 			1411		===>	Ammonia						as NH3
Acidity as CaCO3 				 513		===>	Acidity, hydrogen ion (H+)			as CaCO3
Silicon as Si02 				2741		===>	Silicon						as Si02
Alkalinity, bicarbonate as CaCO3		 541		===>	Bicarbonate  71-52-3 				as CaCO3
Alkalinity, hydroxide as CaCO3			 543		===>	Calcium hydroxide  1305-62-0 			as CaCO3
Phosphorus, orthophosphate as PO4 		1681		===>	Orthophosphate					as PO4
Phosphorus, phosphate (PO4) as P 		2525		===>	Phosphate-phosphorus				as P
Phosphorus as PO4 				1675		===>	Phosphate-phosphorus				as PO4
Phosphorus, phosphate (PO4) as PO4 		2526		===>	Phosphate-phosphorus				as PO4