Effluents discharged from water pollution control facilities into waters classified for the beneficial use of coldwater permanent fish life propagation and coldwater marginal fish life propagation must be of high quality. In order to protect these uses, the effluent may not exceed 10 mg/L of suspended solids and 10 mg/L of 5-day biochemical oxygen demand as a 30-day average. Neither pollution characteristic may exceed 17.5 mg/L in any one sample collected during the sampling period. Facilities that apply for a permit to discharge to the reach of the Missouri River from the Big Bend Dam to the North Dakota border are exempt from this section.

Source: SL 1975, ch 16, § 1; 2 SDR 36, effective November 17, 1975; 4 SDR 32, effective December 4, 1977; transferred from § 34:04:02:45, effective July 1, 1979; 7 SDR 48, effective November 24, 1980; 13 SDR 129, 13 SDR 141, effective July 1, 1987; 14 SDR 86, effective December 24, 1989; 19 SDR 111, effective January 31, 1993; transferred from § 74:03:02:45, July 1, 1996; 35 SDR 253, effective May 12, 2009.

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

Law Implemented: SDCL 34A-2-10 , 34A-2-11 , 34A-2-13.