ARSD 74:51:01:52. Criteria for fish and wildlife propagation, recreation, and stock watering waters

The criteria of parameters for fish and wildlife propagation, recreation, and stock watering waters and their allowable variations that are not included under § 74:51:01:55 and Appendix B, unless set under § 74:51:01:24, are as found in the following table: Parameter Criteria Unit of Measure Special Conditions Total alkalinity as calcium carbonate < 750 mg/L 30-day average < 1313 mg/L daily maximum Total dissolved solids < 2,500 mg/L 30-day average < 4,375 mg/L daily maximum Conductivity at 25°C < 4,000 micromhos/cm 30-day average < 7,000 micromhos/cm daily maximum Nitrates as N < 50 mg/L 30-day average < 88 mg/L daily maximum pH > 6.0 - < 9.5 units see § 74:51:01:07 Total petroleum hydrocarbon < 10 mg/L see § 74:51:01:10 Oil and grease < 10 mg/L see § 74:51:01:10