Authority: IC 13-14-8; IC 13-14-9; IC 13-18-3

Affected: IC 13-18-4

Sec. 7. (a) All surface water quality criteria in this rule, except as provided in section 8(b)(1) of this rule, are to be applied at a point outside of the mixing zone as determined under 327 IAC 5-2-11.4 to allow for a reasonable admixture of waste effluents with the receiving waters.

(b) The commissioner may deny any mixing zone for a discharge or for certain substances in a discharge in accordance with 327 IAC 5-2-11.4(b)(5) and 327 IAC 5-2-11.4(b)(6).

(Water Pollution Control Division; 327 IAC 2-1.5-7; filed Jan 14, 1997, 12:00 p.m.: 20 IR 1370; readopted filed Oct 18, 2024, 1:57 p.m.: 20241113-IR-327230810RFA)