S.D. Admin. R. 74:51:01:56
In addition to the criteria of parameters for the beneficial uses assigned in § 74:51:03:10 to the segment of Whitewood Creek from Interstate 90 to its confluence with Gold Run Creek and their allowable variations as listed in § 74:51:01:55, Appendix B, § 74:51:01:46 and §§ 74:51:01:50 to 74:51:01:53, inclusive, the following site-specific criteria are established for this segment:
Parameter | 30-day average (ug/L) |
Cyanide - weak acid dissociable (WAD) | 80 |
Cadmium, total recoverable | 10 |
Copper, total recoverable | 80 |
Lead, total recoverable | 70 |
Mercury, total recoverable | 0.8 |
Silver, total recoverable | 20 |
For the Lead-Deadwood Sanitary District effluent quality for total suspended solids may not exceed 18 mg/L as a 30-day average and effluent quality for 5-day biochemical oxygen demand may not exceed 10 mg/L as a 30-day average. For South Dakota Science and Technology Authority effluent quality for total suspended solids may not exceed 10 mg/L as a 30-day average. In accordance with the statements in this section, the existing surface water discharge permittees in this segment are exempt from the total suspended solids limits and 5-day biochemical oxygen demand limits contained in § 74:51:01:32.
S.D. Admin. R. 74:51:01:56
General Authority: SDCL 34A-2-11, 34A-2-93.
Law Implemented: SDCL 34A-2-10, 34A-2-11.
Modification of criteria for specific sites, § 74:51:01:24; Effluent limitations for discharges to trout fishery waters, § 74:51:01:32.