Users must comply with the categorical pretreatment standards found in 40 CFR Chapter I, Subchapter N, Parts 405-471.
(A) Upon the promulgation of national categorical pretreatment standards for an industrial subcategory, each national categorical pretreatment standard, if more stringent than the corresponding standard or limit imposed under this chapter for the specific industrial subcategory, shall immediately supersede the standards or limits previously imposed under this chapter.
(B) Compliance with national categorical pretreatment standards for existing discharges or sources subject to such standards or limits presently or hereafter become subject to such standards or limits shall be within three years following promulgation of the standards unless a shorter compliance time is specified in the standard.
(C) All new discharges or sources shall comply with national categorical pretreatment standards within 90 days of initiation of a discharge.
(D) The town shall notify all affected users of the applicable reporting requirements under 40 CFR, Section 403.12 and/or R61-9 403.12.
(E) Industrial categories subject to national pretreatment standards are:
Aluminum forming |
Asbestos manufacturing |
Battery manufacturing |
Builders paper |
Carbon black manufacturing |
Cement manufacturing |
Centralized waste treatment |
Coal mining |
Coil coating |
Concentrated animal feeding operations |
Concentrated aquatic animal production |
Copper forming |
Dairy products processing |
Electrical and electronic components |
Electroplating |
Explosives manufacturing |
Feedlots |
Ferroalloy manufacturing |
Fertilizer manufacturing |
Fruits and vegetables processing |
Glass manufacturing |
Grain mills |
Gum and wood chemicals |
Hospital |
Ink formulating |
Inorganic chemicals manufacturing |
Iron and steel manufacturing |
Landfills |
Leather tanning and finishing |
Meat and poultry products |
Metal finishing |
Metal molding and casting |
Metal products and machinery |
Mineral mining and processing |
Nonferrous metals forming and metal powders |
Nonferrous metals manufacturing |
Oil and gas extraction |
Ore mining and dressing |
Organic chemicals, plastics, and synthetic fibers |
Paint formulating |
Paving and roofing materials (tars and asphalt) |
Pesticide chemicals |
Petroleum refining |
Pharmaceutical manufacturing |
Phosphate manufacturing |
Photographic |
Plastic molding and forming |
Porcelain enameling |
Pulp, paper, and paperboard |
Rubber manufacturing |
Seafood processing |
Soap and detergent manufacturing |
Steam electric power generating |
Sugar processing |
Timber products processing |
Textile mills |
Transportation equipment cleaning |
Waste combustors |
(F)
State requirements and limitations on discharges shall apply in cases where they are more stringent than federal requirements and limitations or those in this subchapter.
(G) No user shall ever increase the use of process water or in any way attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations contained in the national categorical pretreatment standards, or in any other pollutant specific limitation developed by the city or the state.
(H) When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the Chief Operator shall impose an alternate limit in accordance with 40 CFR 403.6(e) and/or R61-9 403.6(f).
(Ord. 11-01, passed 1-3-11; Am. Ord. 19-04, passed 5-6-19; Am. Ord. 22-07, passed 5-2-22; Am. Ord. 23-06, passed 4-4-23)