Section 106.71. Definitions.

  The definitions in ss. NR 205.03 and 205.04 apply to the terms used in this subchapter. In addition, the following definitions apply to the terms used in this subchapter:

(1)  "Alternative effluent limitations for temperature" means effluent temperature limitations for the control of the thermal component of a discharge which are less restrictive than limitations calculated using the procedures specified in subch. V .

(2)  "Balanced, indigenous community" or "balanced, indigenous population" means a biotic community typically characterized by diversity, the capacity to sustain itself through cyclic seasonal changes, presence of necessary food chain species, and non–domination of pollution tolerant species. Such a community may include historically non–native species introduced in connection with a program of wildlife management and species whose presence or abundance results from substantial, irreversible environmental modifications. Normally, however, the community may not include species whose presence or abundance is attributable to the introduction of pollutants that will be eliminated by compliance by all sources with effluent limitations and standards effective by July 1, 1983, including modifications thereof in accordance with the provisions of this subchapter; and may not include species whose presence or abundance is attributable to alternative effluent limitations imposed pursuant to this subchapter.

(3)  "Existing discharge" means a discharge that is not a new POTW discharge.

(4)  "New discharge" means a discharge that is issued a WPDES permit on or after October 1, 2010.

(5)  "Relevant evidence" means new or historical biological data, physical monitoring data and engineering or diffusion models.

(6)  "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 and on the body of water receiving a thermal discharge.

(7)  "Water quality standards" means applicable water quality standards set forth in chs. NR 102 to 104 , or any federally promulgated water quality standards applicable to surface waters of the state.

CR 07-111 : cr. Register September 2010 No. 657 , eff. 10-1-10.