Wis. Admin. Code Department of Natural Resources NR 225.06

Current through November 25, 2024
Section NR 225.06 - Application of effluent limitations and standards
(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:
(a) They may be modified in accordance with subch. IV of ch. NR 220,
(b) They may be superseded by more stringent limitations and standards necessary to achieve water quality standards or meet other legal requirements, or
(c) They may be supplemented or superseded by standards or prohibitions for toxic pollutants or by additional limitations for other pollutants required to achieve water quality.
(2) Except as provided in subs. (5) and (6), the quantities of suspended solids and BOD which may be discharged by a facility subject to the provisions of this chapter shall not exceed:
(a) Daily maximum and daily average limitations determined for discharges resulting from processing in each of subcategories (1) through (5);
(b) Daily maximum, daily average, and annual limitations determined for discharges resulting from the processing of each commodity or product in subcategories (6) through (8) in the case of facilities which discharge process waste waters continuously or intermittently during the processing season; or
(c) Annual limitations determined for discharge resulting from the processing of each commodity or product in subcategories (6) through (8) in the case of facilities employing long term waste stabilization where all or a portion of the process waste water discharge is stored for the entire processing season and released at a controlled rate with department approval.
(3) The limitations described in sub. (2) shall be based on production and determined by multiplying the appropriate quantity of production for each commodity by the corresponding effluent limitation or standard set forth in table 1 or 2 of this chapter.
(a) The production shall be in terms of product for commodities other than soup in subcategory (8) and in terms of raw material processed for other commodities.
(b) The production used to determine daily maximum and daily average limitations shall be the production for each commodity processed during the peak 30 consecutive day production period of the year for the facility.
(c) The production used to determine annual limitations shall be the production for each commodity during the entire processing season or calendar year.
(4) Discharge limitations for facilities subject to limitations covering more than one commodity or subcategory shall be the sum of limitations determined for the individual commodities or subcategories determined in accordance with subs. (2) and (3).
(5) The effluent limitations and standards set forth in this chapter for subcategories (6) through (8) are applicable only to large and medium size point source facilities or plants.
(6) For the purposes of ss. NR 225.10 and 225.11 the effluent limitations and standards of this chapter are not applicable to:
(a) Facilities which are single commodity 100% canned corn processing plants, or
(b) Facilities which are multi-commodity frozen vegetable processing plants with total annual raw material production less than 7,264 kkg (8,000 tons) per year.

Wis. Admin. Code Department of Natural Resources NR 225.06

Cr. Register, January, 1977, No. 253, eff. 2-1-77.
Amended by, Cr. Register, correction in (1) (a) made under s. 13.92(4) (b) 7, Stats., Register April 2018 No. 748, eff.5/1/2018