Section 302.509  Other Sources

a)         A source of heated effluent that was not in operation or under construction as of January 1, 1971, must not discharge more than a daily average of 29 megawatts (0.1 billion British thermal units per hour).

b)         Sources of heated effluents that discharge less than a daily average of 29 megawatts (0.1 billion British thermal units per hour) not in operation or under construction as of January 1, 1971, must meet all requirements of Sections 302.507 and 302.508.

(Source:  Amended at 47 Ill. Reg. 4437, effective March 23, 2023)