Authority: IC 13-13-5-1; IC 13-13-5-2; IC 13-14-8; IC 13-14-9; IC 13-15-1-2; IC 13-15-2-1; IC 13-18

Affected: IC 13-18-4

Sec. 1. The purpose of this rule is to establish a streamlined process and application requirements for obtaining a variance from a water quality criterion used to establish a water quality-based effluent limitation for mercury in an NPDES permit.

(Water Pollution Control Division; 327 IAC 5-3.5-1; filed Apr 6, 2005, 4:00 p.m.: 28 IR 2349; readopted filed Jun 15, 2011, 11:15 a.m.: 20110713-IR-327110193BFA; readopted filed Jun 29, 2017, 9:34 a.m.: 20170726-IR-327170225BFA; readopted filed May 12, 2023, 1:07 p.m.: 20230607-IR-327230079BFA; readopted filed Oct 18, 2024, 1:57 p.m.: 20241113-IR-327230810RFA)