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Reporting Units
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
This web site provides query access to over 200 million monitoring records originally reported to EPA via the Legacy STORET System.
| Code | Name |
|---|---|
| A | mg/l |
| B | ug/l |
| C | mg/kg (ug/g) |
| D | ug/kg |
| E | #/100 ml (no./100 ml) (cells/100 ml) |
| F | #/ml (no./ml) (cells/ml) |
| G | #/liter (cell/liter) |
| H | degrees C |
| I | distance |
| J | degrees F |
| K | CFS |
| L | gpm, gpd, or mgd |
| M | pc/l |
| N | MPN |
| O | %, percent |
| P | no units, code, ratio, etc. |
| Q | time: day, mo, yr, sec, min, hr |
| R | mmHg |
| S | pH |
| T | pc/gm |
| U | no/sq ft |
| V | #/day (lb/day), lb/yr |
| W | #/effort |
| X | production: ton, ton/day Kg/1000gal |
| Y | wt. measurement |
| Z | "catch all" |