S.D. Admin. R. 74:51:01:49
The criteria for warmwater marginal 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 2 in Appendix A | 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 | >= 4.0 | mg/L | daily minimum October 1 - April 30 |
>= 5.0 | mg/L | daily minimum May 1 - September 30 | |
Undisassociated hydrogen sulfide | <= 0.002 | mg/L | daily maximum |
pH | >= 6.0 - <= 9.0 | units | see § 74:51:01:07 |
Total Suspended Solids | <= 150 | mg/L | 30-day average |
<= 263 | mg/L | daily maximum | |
Temperature | <= 90 | °F | see § 74:51:01:31 |
S.D. Admin. R. 74:51:01:49
General Authority: SDCL 34A-2-11, 34A-2-93.
Law Implemented: SDCL 34A-2-10, 34A-2-11.