35 Ill. Adm. Code 310.902
Effect of an Upset
Section 310
Section 310.902Â Effect of an
Upset
An upset may constitute an
affirmative defense to an action brought for noncompliance with categorical
pretreatment standards if the requirements of Section 310.903 are met.
BOARD NOTE:Â Derived from 40 CFR
403.16(b) (2003).