74:51:01:54Criteria for commerce

and industry waters. The criteria of parameters for commerce and industry 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 < 2,000 mg/L 30-day average < 3,500 mg/L daily maximum pH > 6.0 - < 9.5 units see § 74:51:01:07

Source: SL 1975, ch 16, § 1; transferred from § 34:04:02:44, effective July 1, 1979: 10 SDR 145, effective July 4, 1984; 13 SDR 129, 13 SDR 141, effective July 1, 1987; 19 SDR 111, effective January 31, 1993; transferred from § 74:03:02:44, July 1, 1996; 24 SDR 10, effective July 20, 1997.