Wis. Admin. Code NR 258.10
Effluent limitations, best practicable treatment
Cite as Wis. Admin. Code NR § 258.10
Effluent limitations, best practicable treatment.
Effluent limitations, best practicable treatment. The following effluent limitations when applied in accordance with s. NR 258.06 establish 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) All discharges shall be within the pH range of 6.0 to 9.0.
(2) The fecal coliform of all discharges except those from the small processor subcategory shall not exceed an MPN of 400/100ml.
(3) The BOD 5 , suspended solids, and oil and grease 30 day average limitations are set forth in table 1. The daily maximum limitations are 2 times the 30 day average values. The limitations of table 1 may be modified for the renderer subcategory in accordance with sub. (4) .
(4) For a renderer who conducts hide curing the effluent limitations for the renderer subcategory in table 1 shall be increased by adding;
(a) To the limitation for BOD 5 the value resulting from dividing the number of hides cured by their weight in pounds and multiplying by 17.6, or by their weight in kilograms and multiplying by 8.0, and
(b) To the limitations for suspended solids the value resulting from dividing the number of hides cured by their weight in pounds and multiplying by 24.2, or by their weight in kilograms and multiplying by 11.0.