| Parameter | State Standard | Measurement | ||||
|---|---|---|---|---|---|---|
| I | III | V | VI | VII | Min-Max | |
| Temperature (°F) (cool water fishery) | 84.0 Max | 41.0-74.5 | ||||
| pH | -------------------6.5-9.0---------------- | 6.9-8.5 | ||||
| Oxygen, dissolved (mg/L) (cool water fishery) | 5.0 Min | 7.7-13.2 | ||||
| Coliform, fecal (colonies / 100 ml) | 200 | k1-1500 | ||||
| Streptococci, fecal (colonies / 100 ml) | k2-800 | |||||
| Alkalinity1 (mg/L as CaCO3) | 91-231 | |||||
| Hardness (mg/L as CaCO3) | 140-180 | |||||
| Total Ammonia (mg/L as N) | 0.1-32.12 | <0.010-0.048 | ||||
| Phosophorus, Total3 (mg/L as P) | <0.02-0.120 | |||||
| Manganese, dissolved (ug/L as Mn) | 50 | 50 | 1-7 | |||
| Fluoride, dissolved (mg/L as F) | 4 | 4 | 4 | <0.10 | ||
| Iron, dissolved (ug/L as Fe) | 1000 | 300 | 300 | <3-20 | ||
I Protection of aquatic life
III Drinking water supply
V Livestock and Wildlife Watering
VI Whole-body-contact recreation
VII Groundwater
k Non-ideal count of colonies (too large a sample, colonies merged)
1State standard for alkalinity currently unavailable. The Environmental Protection Agency currently recommends a minimum of 20.0 mg/L (USEPA 1999).
2Based on maximum chronic and acute standards for cold-water fishery. Levels are pH and temperature dependent. The maximum acute value at 4o C and pH of 6.6 is 32.1 mg/l. The maximum acute value at 30o C and pH of 9.0 is 0.6 mg/l. The maximum chronic value at 4o C and pH of 6.6 is 2.4 mg/l. The maximum chronic value at 30o C and pH of 9.0 is 0.1 mg/l. For specific criteria at varying pH and temperatures consult Table B of the Rules of the Department of Natural Resources Division 20-Clean Water Commission Chapter 7- Water Quality.
3State standard for phosphorus is currently unavailable. The Environmental Protection Agency currently recommends a maximum of 0.1mg/L for rivers (Christensen and Pope 1997).
