Register April 2018 No. 748
Chapter NR 240
DAIRY PRODUCTS PROCESSING
NR 240.01   Purpose.
NR 240.02   Applicability.
NR 240.03   Definitions.
NR 240.04   Compliance with effluent limitations and standards.
NR 240.06   Application of effluent limitations and standards.
NR 240.07   BOD of dairy product materials.
NR 240.10   Effluent limitations, best practicable treatment.
NR 240.11   Effluent limitations, best available treatment.
NR 240.12   Standards of performance.
NR 240.13   Pretreatment standards.
NR 240.01 NR 240.01Purpose. The purpose of this chapter is to establish effluent limitations, standards of performance, and pretreatment standards for discharges of process wastes from the dairy products processing industry category of point sources and subcategories thereof.
NR 240.01 Note Note: The authority for promulgation of this chapter is set forth in ch. NR 205.
NR 240.01 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76.
NR 240.02 NR 240.02Applicability. The effluent limitations, standards of performance, pretreatment standards, and other provisions in this chapter are applicable to pollutants or pollutant properties in discharges of process waste resulting from operations or manufacture in any or a combination of the following subcategories.
NR 240.02(1) (1) Receiving stations. Facilities in this subcategory are those engaged in the assembly and reshipment of bulk milk for the use of manufacturing or processing plants;
NR 240.02(1)(a) (a) Class A facilities are those receiving more than 15,600 pounds per day BOD input (150,000 pounds milk equivalent), and
NR 240.02(1)(b) (b) Class B facilities are those receiving less than class A.
NR 240.02(2) (2) Fluid products. Facilities in this subcategory are those manufacturing market milk (ranging from 3.5% fat content to fat free), flavored milk (chocolate and others), and cream (of various fat contents, plain or whipped);
NR 240.02(2)(a) (a) Class A facilities are those receiving more than 25,900 pounds per day BOD input (250,000 pounds milk equivalent), and
NR 240.02(2)(b) (b) Class B facilities are those receiving less than class A.
NR 240.02(3) (3) Cultured products. Facilities in this subcategory are those manufacturing cultured products, including cultured skim milk, cultured buttermilk, yogurt, sour cream, and dips of various types;
NR 240.02(3)(a) (a) Class A facilities are those receiving more than 6,200 pounds per day BOD input (60,000 pounds milk equivalent), and
NR 240.02(3)(b) (b) Class B facilities are those receiving less than class A.
NR 240.02(4) (4) Butter. Facilities in this subcategory are those manufacturing butter either by churning or a continuous process;
NR 240.02(4)(a) (a) Class A facilities are those processing more than 18,180 pounds per day BOD input (175,000 pounds milk equivalent), and
NR 240.02(4)(b) (b) Class B facilities are those processing less than class A.
NR 240.02(5) (5) Cottage and cream cheese. Facilities in this subcategory are those manufacturing cottage cheese and cultured cream cheese;
NR 240.02(5)(a) (a) Class A facilities are those processing more than 2,600 pounds per day BOD input (25,000 pounds milk equivalent), and
NR 240.02(5)(b) (b) Class B facilities are those processing less than class A.
NR 240.02(6) (6) Natural and processed cheese. Facilities in this subcategory are those manufacturing natural cheese (hard curd) and processed cheese;
NR 240.02(6)(a) (a) Class A facilities are those processing more than 10,390 pounds per day BOD input (100,000 pounds milk equivalent), and
NR 240.02(6)(b) (b) Class B facilities are those processing less than class A.
NR 240.02(7) (7) Fluid mix for frozen products. Facilities in this subcategory are those manufacturing fluid mixes for ice cream and other frozen desserts (for later freezing in other plants);
NR 240.02(7)(a) (a) Class A facilities are those having a dairy products input of more than 8,830 pounds per day BOD input (85,000 pounds milk equivalent), and
NR 240.02(7)(b) (b) Class B facilities are those having a dairy products input less than class A.
NR 240.02(8) (8) Ice cream and frozen products. Facilities in this subcategory are those manufacturing ice cream, ice milk, sherbert, water ices, stick confections, frozen novelty products, frozen desserts, mellorine, pudding, and other dairy product base desserts;
NR 240.02(8)(a) (a) Class A facilities are those having a dairy products input of more than 8,830 pounds per day BOD input (85,000 pounds milk equivalent), and
NR 240.02(8)(b) (b) Class B facilities are those having a dairy products input of less than class A.
NR 240.02(9) (9) Condensed milk. Facilities in this subcategory are those manufacturing condensed whole milk, condensed skim milk, sweetened condensed milk, and condensed buttermilk;
NR 240.02(9)(a) (a) Class A facilities are those condensing more than 10,390 pounds per day BOD input (100,000 pounds milk equivalent), and
NR 240.02(9)(b) (b) Class B facilities are those condensing less than class A.
NR 240.02(10) (10) Dry milk. Facilities in this subcategory are those manufacturing dry whole milk, dry skim milk, and dry buttermilk;
NR 240.02(10)(a) (a) Class A facilities are those with an input equivalent to more than 15,070 pounds per day BOD input (145,000 pounds milk equivalent), and
NR 240.02(10)(b) (b) Class B facilities are those with an input less than class A.
NR 240.02(11) (11) Condensed whey. Facilities in this subcategory are those manufacturing condensed sweet whey and condensed acid whey;
NR 240.02(11)(a) (a) Class A facilities are those with more than 14,160 pounds per day BOD input (300,000 pounds of raw fluid whey containing 20,700 pounds solids), and
NR 240.02(11)(b) (b) Class B facilities are those with an input less than class A.
NR 240.02(12) (12) Dry whey. Facilities in this subcategory are those manufacturing sweet or acid dry whey;
NR 240.02(12)(a) (a) Class A facilities are those with more than 15,620 pounds per day BOD input (57,000 pounds of 40% solids whey containing 22,800 pounds of solids), and
NR 240.02(12)(b) (b) Class B facilities are those with an input less than class A.
NR 240.02 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76.
NR 240.03 NR 240.03Definitions. The following definitions are applicable to terms used in this chapter. Definitions of other terms and meanings of abbreviations are set forth in ch. NR 205.
NR 240.03(1) (1) “BOD inputmeans the 5 day biochemical oxygen demand of the materials entered into process. It can be calculated by multiplying the amounts of fats, proteins, and carbohydrates by factors of 0.890, 1.031, and 0.691, respectively. Organic acids, e.g. lactic acid, should be included as carbohydrates. The composition of input materials may be based on either,
NR 240.03(1)(a) (a) Direct analysis, or
NR 240.03(1)(b) (b) Generally accepted published values such as specifically those in s. NR 240.07.
NR 240.03(2) (2) “Milk equivalentmeans the quantity of 3.7% fat content whole milk necessary to supply one pound of fluid raw material to a process.
NR 240.03 History History: Cr. Register, June, 1976, No. 246, eff. 7-1-76.
NR 240.04 NR 240.04Compliance with effluent limitations and standards. Discharge of pollutants from facilities subject to the provisions of this chapter may not exceed, as appropriate:
NR 240.04(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 240.04(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 240.04(3) (3) Pretreatment standards for discharges to publicly owned treatment works;
NR 240.04(4) (4) Standards of performance for new sources.
NR 240.04 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 240.06 NR 240.06Application of effluent limitations and standards.
NR 240.06(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 240.06(1)(a) (a) They may be modified in accordance with subch. IV of ch. NR 220,
NR 240.06(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 240.06(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 240.06(2) (2) The production basis for application of the limitations and standards set forth in this chapter shall be the daily average for a maximum month for the facility in each subcategory subject to the provisions of this chapter.
NR 240.06(3) (3) For a facility which manufactures one or more final products in only one of the subcategories of s. NR 240.02 using a process or processes involving the production of intermediate products in any other subcategories the total discharge limitation shall be the total of the amounts calculated from the BOD input in the final product subcategory and each of such other subcategories involved, except that,
NR 240.06(3)(a) (a) Such other subcategories shall not include receiving stations, subcategory (1), and
NR 240.06(3)(b) (b) If the facility is in subcategory (8) the total discharge limitation shall not include any amounts calculated for fluid mixes it prepares and shall be reduced by the amounts calculated for any fluid mixes it receives from other facilities.
NR 240.06(4) (4) For a facility which manufactures final products in more than one of the subcategories of s. NR 240.02 the total discharge limitation shall be the total of the amounts calculated in accordance with sub. (3) for each final product subcategory involved.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.