S.D. Admin. R. 74:51:01:46

Current through Register Vol. 51, page 67, December 16, 2024

Section 74:51:01:46 - Criteria for coldwater marginal fish life propagation waters

The criteria of parameters for coldwater 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 1 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	> 5.0	mg/L	daily minimum
Undisassociated hydrogen sulfide	< 0.002	mg/L	daily maximum
pH	> 6.5 - < 9.0	units	see § 74:51:01:07
Total Suspended Solids	< 90	mg/L	30-day average
< 158	mg/L	daily maximum
Temperature	< 75	°F	see § 74:51:01:31

For special effluent limitations related to coldwater fisheries, see § 74:51:01:32.

S.D. Admin. R. 74:51:01:46

SL 1975, ch 16, § 1; 4 SDR 32, effective 12/4/1977; 5 SDR 21, effective 9/21/1978; transferred from § 34:04:02:35, effective 7/1/1979; 10 SDR 145, effective 7/4/1984; 13 SDR 129, 13 SDR 141, effective 7/1/1987; 19 SDR 111, effective 1/31/1993; transferred from § 74:03:02:35, July 1, 1996; 24 SDR 10, effective 7/20/1997; 31 SDR 29, effective 9/13/2004; 35 SDR 253, effective 5/12/2009.

General Authority: SDCL 34A-2-11, 34A-2-93.

Law Implemented: SDCL 34A-2-10, 34A-2-11.