Wis. Admin. Code Department of Natural Resources NR 258.12

Current through November 25, 2024

Section NR 258.12 - Standards of performance

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 new source subject to the provisions of this chapter.

(1) The pH of all discharges shall be within the 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 400/100 ml.

(3) The BOD5, suspended solids, oil and grease, and ammonia 30 day average limitations are set forth in table 3. The daily maximum limitations are 2 times the 30 day average values.

(4) For a renderer who conducts hide curing the effluent limitations for the renderer subcategory in table 3 shall be increased by adding;

(a) To the limitation for BOD5 the value resulting from dividing the number of hides cured by their weight in pounds and multiplying by 7.9, or by their weight in kilograms and multiplying by 3.6, 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 13.6, or by their weight in kilograms and multiplying by 6.2.

Table 3

Standards of Performance Effluent Limitations
Subcategory	BOD5	Suspended Solids	Oil and Grease	Ammonia
(in lbs/1000 lbs. LWK, or kg/1000 kg. LWK)
Simple slaughterhouse	0.12	0.20	0.06	0.17
Complex slaughterhouse	0.21	0.25	0.08	0.24
Low-processing packinghouse	0.17	0.24	0.08	0.24
High-processing packinghouse	note (1)	note (2)	0.13	0.40
(in lbs/1000 lbs. or kg/1000 kg. of finished product)
Small processor	0.5	0.6	0.25
Meat cutter	0.015	0.018	0.006
Sausage & luncheon meat
processor	0.24	0.29	0.10
Ham processor	0.31	0.37	0.11
Canned meat processor	0.37	0.45	0.13
(in lbs/1000 lbs. or kg/1000 kg. of RM)
Renderer	0.17	0.21	0.10	0.17
(in lbs/1000 lbs. ELWK, or kg/1000 kg. ELWK)
Operations
Hide processing	0.02	0.04
Blood processing	0.02	0.04	0.03
Rendering, wet or low
temperature	0.03	0.06	0.05
Rendering, dry	0.01	0.02	0.02

Wis. Admin. Code Department of Natural Resources NR 258.12

Cr. Register, June, 1976, No. 246, eff. 7-1-76.

(1) Limitation is calculated using the formula 0.21)0.23 (V-0.4) where V is the lb processed meat products/lb LWK.

Limitation is calculated using the formula 0.28) 0.30 (V-0.4) where V is the same as note (1).