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. 1. This rule establishes the pretreatment requirements that apply to discharges of pollutants from industrial users to POTWs, including the following:

1. (1) Pretreatment standards for prohibited discharges.
2. (2) National pretreatment standards for specific industrial subcategories, established by 40 CFR 403.6.
3. (3) State pretreatment standards.
4. (4) More stringent limitations where necessary to protect a POTW from interference or to protect applicable water quality standards.

(Water Pollution Control Division; 327 IAC 5-18-1; filed Oct 10, 2000, 3:02 p.m.: 24 IR 297; readopted filed Oct 18, 2024, 1:57 p.m.: 20241113-IR-327230810RFA)