Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection - Wisconsin Pollutant Discharge Elimination System
Chapter NR 277 - Photographic Processing
Section NR 277.10 - Effluent limitations, best practicable treatment
Current through August 26, 2024
The following effluent limitations for all or specific subcategories establish, except as provided in subch. IV of ch. NR 220, the quantity or quality of pollutants or pollutant properties which may be discharged by a facility subject to the provisions of this chapter after application to process wastes of the best practicable control technology currently available.
(1) The pH of all discharges shall be within the range of 6.0 to 9.0.
(2) The 30-day average limitations for Ag and CN shall be respectively 0.015 and 0.019 pounds/1000 sq. ft. of product, or 0.07 and 0.09 kg/1000 sq.m.
(3) The daily maximum limitations shall be twice the 30-day average limitations set forth in sub. (2).