Pretreatment standards for new sources.

§ 464.36 Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.

(a) Casting Cleaning Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of metal poured
Copper (T)0.01290.0071
Lead (T)0.02370.0116
Zinc (T)0.04370.0165

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of metal poured
Copper (T)0.01290.0071
Lead (T)0.03530.0174
Zinc (T)0.06560.025

(b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of metal poured
Copper (T)0.01380.0076
Lead (T)0.02520.0124
Zinc (T)0.04660.0176
TTO0.02570.00838
Oil and Grease (for alternate monitoring)1.430.476

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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