Authority: IC 13-14-8; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-2; IC 13-18-3

Affected: IC 13-11-2; IC 13-13-5-1; IC 13-18-4

Sec. 2. (a) An industrial user shall be required to obtain an IWP permit for a discharge of wastewater into a POTW if one (1) of the following situations exists:

1. (1) The discharge is from a significant industrial user as defined in 327 IAC 5-17-23 and is discharged into a POTW that is not required to have an approved POTW pretreatment program under 327 IAC 5-19-1.
2. (2) The commissioner determines that an IWP permit is needed for effective control of an industrial discharge.

(b) An industrial user subject to the terms of subsection (a) shall submit an application for an IWP permit to the commissioner prior to commencing the discharge of industrial wastewater to a POTW.

(c) An existing industrial user that intends to add a pollutant not limited by the valid IWP permit or increase discharge of a pollutant limited by the IWP permit must apply for an IWP permit modification from the commissioner prior to commencing discharge containing the additional pollutant.

(Water Pollution Control Division; 327 IAC 5-21-2; filed Oct 10, 2000, 3:02 p.m.: 24 IR 314; errata filed Jun 6, 2014, 2:47 p.m.: 20140709-IR-327140205ACA; readopted filed Oct 18, 2024, 1:57 p.m.: 20241113-IR-327230810RFA)