Chapter NR 258

NR 258.03(7) (7) “Small processor” means an operation that produces up to 6000 pounds per day of any type or combination of finished products.

NR 258.03(8) (8) “Meat cutter” means an operation which fabricates, cuts, or otherwise produces fresh meat cuts and related finished products from livestock carcasses at rates greater than 6000 pounds per day.

NR 258.03(9) (9) “Sausage and luncheon meat processor” means an operation which cuts fresh meats, grinds, mixes, seasons, smokes, or otherwise produces finished products such as sausage, bologna, and luncheon meats at rates greater than 6000 pounds per day.

NR 258.03(10) (10) “Ham processor” means an operation which manufactures hams alone or in combination with other finished products at rates greater than 6000 pounds per day.

NR 258.03(11) (11) “Canned meat processor” means an operation which prepares and cans meats such as stew, sandwich spreads, or similar products alone or in combination with other finished products at rates greater than 6000 pounds per day.

NR 258.03(12) (12) “Renderer” means an independent or off-site rendering operation conducted separate from a slaughterhouse, packinghouse, or poultry dressing or processing plant which manufactures at rates greater than 75,000 pounds per day meat meal, tankage, animal fats or oils, grease, and tallow, and may cure cattle hides, but excluding marine oils, fish meal, and fish oils.

NR 258.03(13) (13) “LWK” means live weight killed and is the total weight of the total number of animals slaughtered during the time to which the effluent limitations apply, i.e., during any one day or any period of 30 consecutive days.

NR 258.03(14) (14) “ELWK” means equivalent live weight killed and is the total weight of the total number of animals slaughtered at locations other than the slaughterhouse or packinghouse, which animals provide hides, blood viscera or renderable materials for processing at that slaughterhouse, in addition to those derived from animals slaughtered on site.

NR 258.03(15) (15) “Oil and grease” means those components of process wastewater amenable to measurement by the methods approved for oil and grease listed in ch. NR 219.

NR 258.03(16) (16) “Raw material” or “RM” means for a renderer the basic input materials composed of animal and poultry trimmings, bones, meat scraps, dead animals, feathers and related usable byproducts.

NR 258.03(17) (17) “Tallow” means a product made from beef cattle or sheep fat that has a melting point of 40º C or greater.

NR 258.03(18) (18) “Tankage” means dried animal byproduct residues used in feedstuffs.

NR 258.03(19) (19) “Finished product” means as appropriate;

NR 258.03(19)(a) (a) For a small processor such final manufactured products as fresh meat cuts, hams, bacon or other smoked meats, sausage, luncheon meats, stew, canned meats, or related products,

NR 258.03(19)(b) (b) For a meat cutter such final manufactured products as meat cuts including but not limited to steaks, roasts, chops, or boneless meats.

NR 258.03(19)(c) (c) For a sausage and luncheon meat processor such final manufactured products as fresh meat cuts including steaks, roast, chops, or boneless meats, bacon or other smoked meats (except hams) such as sausage, bologna or other luncheon meats, or related products except canned meats,

NR 258.03(19)(d) (d) For a ham processor such final manufactured products as fresh meat cuts including steaks, roasts, chops, or boneless meat, smoked or cured hams, bacon, or other smoked meats, sausage, bologna or other luncheon meats except canned meats, or

NR 258.03(19)(e) (e) For a canned meat processor such final manufactured products as fresh meat cuts, including steaks, roasts, chops, or boneless meat, hams, bacon, or other smoked meats, sausage, bologna, or other luncheon meats, stews, sandwich spread, or other canned meats.

NR 258.03 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76; correction made to (15) under s. 13.92 (4) (b) 6., Stats., Register April 2013 No. 688; CR 17-046: am. (15) Register February 2021 No.782, eff. 6-29-21; correction in (15) made under s. 35.17, Stats., Register February 2021 No. 782.

NR 258.04 NR 258.04 Compliance with effluent limitations and standards. Discharge of pollutants from facilities subject to the provisions of this chapter may not exceed, as appropriate:

NR 258.04(1) (1) By July 1, 1977 effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available;

NR 258.04(2) (2) By July 1, 1983 effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable;

NR 258.04(3) (3) Pretreatment standards for discharges to publicly owned treatment works;

NR 258.04(4) (4) Standards of performance for new sources.

NR 258.04 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76; r. and recr. Register, August, 1983, No. 332, eff. 9-1-83.

NR 258.06 NR 258.06 Application of effluent limitations and standards.

NR 258.06(1) (1) The effluent limitations and standards set forth in this chapter shall be used in accordance with this section to establish the quantity or quality of pollutants or pollutant properties which may be discharged by a point source subject to the provisions of this chapter, except as:

NR 258.06(1)(a) (a) They may be modified in accordance with subch. IV of ch. NR 220,

NR 258.06(1)(b) (b) They may be superseded by more stringent limitations and standards necessary to achieve water quality standards or meet other legal requirements, or

NR 258.06(1)(c) (c) They may be supplemented or superseded by standards or prohibitions for toxic pollutants or by additional limitations for other pollutants required to achieve water quality.

NR 258.06(2) (2) The production basis for application of the limitations and standards set forth in this chapter shall be the daily average of annual production in each subcategory subject to the provisions of this chapter.

NR 258.06(3) (3) The effluent limitations of ss. NR 258.10, 258.11, and 258.12 shall be applied to discharges from any single facility subject to the provisions of this chapter by:

NR 258.06(3)(a) (a) Determining to which of subcategories (1) to (10) such facility belongs,

NR 258.06(3)(b) (b) Calculating the discharge limitations from the appropriate effluent limitations for such category on the basis of the production or the LWK of animals slaughtered in said facility, and

NR 258.06(3)(c) (c) For subcategories (1) through (4) increasing such discharge limitations by the amounts calculated using appropriate effluent limitations for rendering and hide or blood processing operations on the basis of the ELWK of raw materials so processed resulting from animals slaughtered elsewhere than in said facility.

NR 258.06 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76; correction in (1) (a) made under s. 13.92 (4) (b) 7, Stats., Register April 2018 No. 748.

NR 258.10 NR 258.10 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.

NR 258.10(1) (1) All discharges shall be within the pH range of 6.0 to 9.0.

NR 258.10(2) (2) The fecal coliform of all discharges except those from the small processor subcategory shall not exceed an MPN of 400/100ml.

NR 258.10(3) (3) The BOD5, 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).

NR 258.10(4) (4) For a renderer who conducts hide curing the effluent limitations for the renderer subcategory in table 1 shall be increased by adding;

NR 258.10(4)(a) (a) To the limitation for BOD5 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

NR 258.10(4)(b) (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.

Table 1

- See PDF for table

NR 258.10 Note Note: (1) Limitation is calculated using the formula 0.21X0.23(V-0.4) where V is the lb processed meat products/lb LWK.

NR 258.10 Note (2) Limitation is calculated using the formula 0.28X0.30(V-0.4) where V is the same as note (1).

NR 258.10 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76.

NR 258.11 NR 258.11 Effluent limitations, best available 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 available technology economically achievable.

NR 258.11(1) (1) The pH of all discharges shall be within the range of 6.0 to 9.0.

NR 258.11(2) (2) The fecal coliform of all discharges except those from the small processor subcategory shall not exceed an MPN of 400/100 ml.

NR 258.11(3) (3) The oil and grease content of discharges for the first 4 subcategories of table 2 shall not exceed 10 mg/l.

NR 258.11(4) (4) The ammonia content of all discharges except for the small processor and renderer subcategories shall not exceed 4 mg/l on a 30-day average basis nor a daily maximum of 8 mg/l. The effluent limitation for ammonia for discharges from the renderer subcategory shall be a 30 day average of 0.02 and a daily maximum of 0.04 lbs/1000 lbs. or kg/1000 kg. of raw material.

NR 258.11(5) (5) The BOD5, suspended solids, and oil and grease 30 day average limitations are set forth in table 2. The daily maximum limitations are 2 times the 30 day average values. The limitations of table 2 may be modified for the renderer subcategory in accordance with sub. (6).

NR 258.11(6) (6) For a renderer who conducts hide curing the effluent limitations for the renderer subcategory in table 2 shall be increased by adding;

NR 258.11(6)(a) (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

NR 258.11(6)(b) (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 2

- See PDF for table

NR 258.11 Note Note: (1) The limitation is calculated using the formula 0.07X0.08(V-0.4) where V is the lb processed meat products/lb LWK. (2) The limitation is calculated using the formula 0.09X0.10(V-0.4) where V is the same as note (1).

NR 258.11 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76.

NR 258.12 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.

NR 258.12(1) (1) The pH of all discharges shall be within the range of 6.0 to 9.0.

NR 258.12(2) (2) The fecal coliform of all discharges except those from the small processor subcategory shall not exceed an MPN of 400/100 ml.

NR 258.12(3) (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.

NR 258.12(4) (4) For a renderer who conducts hide curing the effluent limitations for the renderer subcategory in table 3 shall be increased by adding;

NR 258.12(4)(a) (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

NR 258.12(4)(b) (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

- See PDF for table

NR 258.12 Note Note: (1) Limitation is calculated using the formula 0.21+0.23 (V-0.4) where V is the lb processed meat products/lb LWK.

NR 258.12 Note Limitation is calculated using the formula 0.28 + 0.30 (V-0.4) where V is the same as note (1).

NR 258.12 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76.

NR 258.13 NR 258.13 Pretreatment standards. The pretreatment standards for discharges to publicly owned treatment works from sources subject to the provisions of this chapter shall be as set forth in ch. NR 211.

NR 258.13 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76; r. and recr. Register, August, 1983, No. 332, eff. 9-1-83