Section 302.508  Thermal Standards for Sources Under Construction But Not In Operation on January 1, 1971

Any effluent source under construction but not in operation on January 1, 1971 must meet all the requirements of Section 302.507 and in addition must meet the following restrictions:

a)         Neither the bottom, the shore, the hypolimnion, nor the thermocline shall be affected by any heated effluent.

b)         No heated effluent shall affect spawning grounds or fish migration routes.

c)         Discharge structures shall be so designed as to maximize short-term mixing and thus to reduce the area significantly raised in temperature.

d)         No discharge shall exceed ambient temperatures by more than 11º C (20º F).

e)         Heated effluents from more than one source shall not interact.

f)          All reasonable steps shall be taken to reduce the number of organisms drawn into or against the intakes.

(Source:  Amended at 22 Ill. Reg. 1356, effective December 24, 1997)