R 323.1072 Temperature; inland lakes; general standards.

Rule 72. Inland lakes shall not receive a heat load which would: (a) Increase the temperature of the thermocline or hypolimnion or decrease the volume thereof. (b) Increase the temperature of the receiving waters at the edge of the mixing zone more than 3 degrees Fahrenheit above the existing natural water temperature. (c) Increase the temperature of the receiving waters at the edge of the mixing zone to temperatures greater than the following monthly maximum temperatures: J F M A M J J A S O N D 45 45 50 60 70 75 80 85 80 70 60 50