ARSD 74:51:01:45. Criteria for coldwater permanent fish life propagation waters

The criteria of parameters for coldwater permanent fish life propagation 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 ammonia nitrogen as N Equal to or less than the result from Equation 3 in Appendix A mg/L 30-day average Equal to or less than the result from Equation 1 in Appendix A mg/l daily maximum Chlorides < 100 mg/L 30-day average < 175 mg/L daily maximum Dissolved oxygen as measured anywhere in the water column of a non-stratified water body, or in the epilimnion and metalimnion of a stratified water body > 6.0 mg/L daily minimum > 7.0 mg/L in spawning areas during the spawning season Undisassociated hydrogen sulfide < 0.002 mg/L daily maximum pH > 6.5 - < 9.0 units see § 74:51:01:07 Total Suspended Solids < 30 mg/L 30-day average < 53 mg/L daily maximum Temperature < 65 °F see § 74:51:01:31 For special effluent limitations related to coldwater fisheries, see § 74:51:01:32.