Section NR 212.72 - Definitions In addition to the definitions and abbreviations in ss. NR 205.03 and 205.04 the following definitions are applicable to the terms of this subchapter:
(1) "EPA" means the United States environmental protection agency.(2) "Impaired water" has the meaning given in s. NR 151.002(16m).(3) "Increased discharge" means any increase in the concentration or mass loading of a pollutant of concern that exceeds an effluent limitation that is in effect in a current permit.(4) "Load allocation" means the nonpoint source allocation as defined in s. NR 212.03(14).(5) "Loading capacity" means the greatest amount of loading that a water can receive without violating water quality standards.(6) "Margin of safety" means a required component of the TMDL that accounts for the uncertainty in the response of the waterbody to loading reductions.(7) "Natural background load" means loads emanating from natural sources, including but not limited to forested and undeveloped lands and from natural processes such as weathering and dissolution, which would exist in the absence of measurable impacts from human activity or influence.(8) "New discharge" means a point source that discharges the pollutant of concern that commenced operation after the TMDL was approved by EPA and was not given a wasteload allocation in the TMDL.(9) "Pollutant of concern" means any pollutant discharged that has an applicable TBEL, a wasteload allocation from a TMDL or watershed analysis, or is identified as needing a WQBEL to meet water quality standards.(10) "TBEL" means technology-based effluent limitation.(11) "TMDL" means total maximum daily load and is the sum of the individual wasteload allocations for point sources, load allocations for nonpoint sources, natural background, and a margin of safety. TMDLs can be expressed in terms of mass per time, toxicity, or other appropriate measures that relate to a state water quality standard.(12) "Wasteload allocation" refers to the point source allocation as defined in s. NR 212.03(22).(13) "WQBEL" means water quality-based effluent limitation.Wis. Admin. Code Department of Natural Resources § NR 212.72
Adopted by, CR 15-085: cr. Register August 2016 No. 728, eff. 9/1/2016