An industrial user must promptly notify the Control Authority (and the POTW if the POTW is not the Control Authority) in advance of any substantial change in the volume or character of pollutants in its discharge, including the listed or characteristic hazardous wastes for which the industrial user has submitted initial notification under Section 310.635.

BOARD NOTE: Derived from 40 CFR 403.12(j) (2005), as amended at 70 Fed. Reg. 60134 (Oct. 14, 2005).

(Source: Amended at 30 Ill. Reg. 17847, effective October 26, 2006)