(a) pH between 6.0 and 9.0 standard units are the applicable criteria for rivers, streams, lakes, and reservoirs.
(b) As a result of waste discharges, the pH of water in streams or lakes must not fluctuate in excess of 1.0 standard unit over a period of twenty-four (24) hours.
(c) Note. Site specific pH criteria are located in Appendix A.