327 IAC 5-7-2 - Definitions

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

Affected: IC 13-18-4; IC 13-18-19

Sec. 2.

For the purpose of this rule ( 327 IAC 5-7 ):

"Alternative effluent limitations" means all effluent limitations or standards of performance for the control of the thermal component of any discharge which are established under section 316(a) of the CWA and this rule ( 327 IAC 5-7 ).

"Balanced, indigenous community" is synonymous with the term "balanced, indigenous population" in the CWA and means a biotic community typically characterized by diversity, the capacity to sustain itself through cyclic seasonal changes, presence of necessary food chain species and by a lack of domination by pollution tolerant species. Such a community may include historically nonnative species introduced in connection with a program of wildlife management and species whose presence or abundance results from substantial, irreversible environmental modifications. Normally, however, such a community will not include species whose presence or abundance is attributable to the introduction of pollutants that will be eliminated by compliance by all sources with section 301(b)(2) of the CWA, and may not include species whose presence or abundance is or would be attributable to the imposition of alternative effluent limitations pursuant to section 316(a) of the CWA in place of otherwise applicable effluent limitations under section 301 or section 306 of the CWA.

"Representative important species" means species which are representative, in terms of their biological needs, of a balanced, indigenous community of shellfish, fish and wildlife in the body of water into which a discharge of heat is made.


327 IAC 5-7-2
Water Pollution Control Board; 327 IAC 5-7-2; filed Sep 24, 1987, 3:00 pm: 11 IR 648; readopted filed Jan 10, 2001, 3:23 p.m.: 24 IR 1518; readopted filed Nov 21, 2007, 1:16 p.m.: 20071219-IR-327070553BFA Readopted filed Jul 29, 2013, 9:21 a.m.: 20130828-IR-327130176BFA

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