All modifications must be incorporated into the POTW's NPDES permit upon approval. The permit must be modified to incorporate the approved modification in accordance with this Part and 35 Ill. Adm. Code 309.
Ill. Admin. Code tit. 35, § 310.924
Amended at 28 Ill. Reg. 3390, effective February 6, 2004
BOARD NOTE: Derived from 40 CFR 403.18(e) (2003).