S.D. Admin. R. 74:51:01:44
The criteria of parameters for domestic water supply 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 dissolved solids | <= 1,000 | mg/L | 30-day average |
<= 1,750 | mg/L | daily maximum | |
Nitrates as N | <= 10 | mg/L | daily maximum |
pH | >= 6.5 - <= 9.0 | units | |
Total Coliform | <= 5,000 | /100 mL | geometric mean of a minimum of 5 samples during separate 24-hour periods for a 30-day period and may not exceed this value in more than 20 percent of the samples examined in the same 30-day period |
<= 20,000 | /100 mL | in any one sample | |
Barium | <= 1.0 | mg/L | daily maximum |
Chloride | <= 250 | mg/L | 30-day average |
<= 438 | mg/L | daily maximum | |
Fluoride | <= 4.0 | mg/L | daily maximum |
Sulfate | <= 500 | mg/L | 30-day average |
<= 875 | mg/L | daily maximum | |
Total Petroleum Hydrocarbons | <= 1.0 | mg/L | daily maximum |
S.D. Admin. R. 74:51:01:44
General Authority: SDCL 34A-2-11, 34A-2-93.
Law Implemented: SDCL 34A-2-10, 34A-2-11.