Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 306 - PERFORMANCE CRITERIA
Subpart C - COMBINED SEWERS AND TREATMENT PLANT BYPASSES
Section 306.302 - Expansion of Combined Sewers

Universal Citation: 35 IL Admin Code ยง 306.302

Current through Register Vol. 48, No. 12, March 22, 2024

Expanding existing or establishing new combined sewer service areas is prohibited, except when the Agency has determined from the permit application the following:

a) The combined sewer service area has adequate treatment or retention capacity to ensure that the effluent limitations of 35 Ill. Adm. Code 304 and the provisions of the Act are not violated;

b) Any anticipated increased flow will not overload connecting segments of the combined sewer system;

c) Increased flow will not aggravate combined sewer overflow problems, including combined sewer surcharges, basement backups, and street flow; and

d) The new combined sewer service area will be tributary to an existing combined sewer system.

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