| Parameter | State Standard | Measurement | |||
|---|---|---|---|---|---|
| I | IV | V | VI | Min-Max | |
| Temperature (°F) (cold water fishery) | 68.0 Max | 42.8-72.5 | |||
| pH | 6.5-9.0 | 7.4-8.4 | |||
| Oxygen, dissolved (mg/L) (cold water fishery) | 6.0 Min | 5.7-14.4 | |||
| Coliform, fecal (colonies / 100 ml) | 200 | 3.0-3200 | |||
| Streptococci, fecal (colonies / 100 ml) | N/A | ||||
| Alkalinity1 (mg/L as CaCO3) | N/A | ||||
| Hardness (mg/L as CaCO3) | N/A | ||||
| Total Ammonia (mg/l as NH3) | 0.1-32.12 | <0.01-0.07 | |||
| Phosophorus, Total3 (mg/L as P) | <1.0-13.0 | ||||
| Manganese, dissolved (ug/L as Mn) | |||||
| Fluoride, dissolved (mg/L as F) | 4 | <0.1 | |||
| Iron, dissolved (ug/L as Fe) | 1000 | <3.0-60. | |||
I Protection of aquatic life
IV Irrigation
V Livestock and Wildlife Watering
VI Whole-body-contact recreation
k Non-ideal count of colonies (too large a sample, colonies merged)
N/A Not Available
1 State standard for alkalinity currently unavailable. The Environmental Protection Agency currently recommends a minimum of 20.0 mg/L (USEPA 1999).
2 Based on maximum chronic and acute standards for cold-water fishery. Levels are pH and temperature dependent. The maximum acute value at 4° C and pH of 6.6 is 32.1 mg/l. The maximum acute value at 30° C and pH of 9.0 is 0.6 mg/l. The maximum chronic value at 4° C and pH of 6.6 is 2.4 mg/l. The maximum chronic value at 30° 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.
3 State standard for phosphorus is currently unavailable. The Environmental Protection Agency currently recommends a maximum of 0.1mg/L for rivers (Christensen and Pope 1997).
