TITLE 40 - PROTECTION OF ENVIRONMENT

CHAPTER I - ENVIRONMENTAL PROTECTION AGENCY

SUBCHAPTER N - EFFLUENT GUIDELINES AND STANDARDS

PART 464 - METAL MOLDING AND CASTING POINT SOURCE CATEGORY

subpart c - FERROUS CASTING SUBCATEGORY

464.35 - Pretreatment standards for existing sources.

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing 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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------------------- Copper (T).................................. 0.0129 0.0071 Lead (T).................................... 0.0237 0.0116 Zinc (T).................................... 0.0437 0.0165 ------------------------------------------------------------------------ (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------------------- Copper (T).................................. 0.0129 0.0071 Lead (T).................................... 0.0353 0.0174 Zinc (T).................................... 0.0656 0.025 ------------------------------------------------------------------------ (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------------------- Copper (T).................................. 0.0138 0.0076 Lead (T).................................... 0.0252 0.0124 Zinc (T).................................... 0.0466 0.0176 TTO......................................... 0.0257 0.00838 Oil and grease (for alternate monitoring)... 1.43 0.476 ------------------------------------------------------------------------ (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------------------- Copper (T).................................. 0.0138 0.0076 Lead (T).................................... 0.0376 0.0185 Zinc (T).................................... 0.0699 0.0266 TTO......................................... 0.0257 0.00838 Oil and grease (for alternate monitoring)... 1.43 0.476 ------------------------------------------------------------------------ (c) Dust Collection Scrubber 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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed ----------------------------- Copper (T)................................ 0.218 0.12 Lead (T).................................. 0.398 0.195 Zinc (T).................................. 0.736 0.278 Total Phenols............................. 0.646 0.225 TTO....................................... 2.04 0.664 Oil and Grease (for alternate monitoring). 22.5 7.51 ------------------------------------------------------------------------ (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm \3\ (pounds per billion SCF) of air scrubbed ----------------------------- Copper (T)................................ 0.218 0.12 Lead (T).................................. 0.593 0.293 Zinc (T).................................. 1.1 0.421 Total Phenols............................. 0.656 0.225 TTO....................................... 2.04 0.664 Oil and Grease (for alternate monitoring). 22.5 7.51 ------------------------------------------------------------------------ (d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

  (e) Investment Casting. (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured ----------------------------- Copper (T)................................ 3.19 1.76 Lead (T).................................. 5.84 2.86 Zinc (T).................................. 10.8 4.07 TTO....................................... 13.2 4.3 Oil and Grease (for alternate monitoring). 330 110 ------------------------------------------------------------------------ (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured ----------------------------- Copper (T)................................ 3.19 1.76 Lead (T).................................. 8.7 4.3 Zinc (T).................................. 16.2 6.17 TTO....................................... 13.2 4.3 Oil and Grease (for alternate monitoring). 330 110 ------------------------------------------------------------------------ (f) Melting Furnace Scrubber 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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed ----------------------------- Copper (T)................................ 1.02 0.561 Lead (T).................................. 1.86 0.911 Zinc (T).................................. 3.44 1.30 Total phenols............................. 3.01 1.05 TTO....................................... 8.34 2.73 Oil and grease (for alternate monitoring). 105 35 ------------------------------------------------------------------------ (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed ----------------------------- Copper (T)................................ 1.02 0.561 Lead (T).................................. 2.77 1.37 Zinc (T).................................. 5.15 1.96 Total phenols............................. 3.01 1.05 TTO....................................... 8.34 2.73 Oil and grease (for alternate monitoring). 105 35 ------------------------------------------------------------------------ (g) Mold Cooling 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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------------------- Copper (T).................................. 0.0428 0.0236 Lead (T).................................... 0.0783 0.0384 Zinc (T).................................... 0.145 0.0546 TTO......................................... 0.0797 0.026 Oil and grease (for alternate monitoring)... 4.43 1.48 ------------------------------------------------------------------------ (2) Applicable to plants that are casting primarily steel, 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 equal to or less than 1,784 tons of metal are poured per year.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------------------- Copper (T).................................. 0.0428 0.0236 Lead (T).................................... 0.117 0.0576 Zinc (T).................................... 0.217 0.0827 TTO......................................... 0.0797 0.026 Oil and grease (for alternate monitoring)... 4.43 1.48 ------------------------------------------------------------------------ (h) Slag 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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------------------- Copper (T).................................. 0.0527 0.0291 Lead (T).................................... 0.0964 0.0473 Zinc (T).................................... 0.178 0.0673 TTO......................................... 0.0257 0.00838 Oil and grease (for alternate monitoring)... 5.46 1.82 ------------------------------------------------------------------------ (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of metal poured --------------------------- Copper (T).................................. 0.0527 0.0291 Lead (T).................................... 0.144 0.0709 Zinc (T).................................... 0.267 0.102 TTO......................................... 0.0257 0.00838 Oil and grease (for alternate monitoring)... 5.46 1.82 ------------------------------------------------------------------------ (i) West Sand Reclamation 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 gray iron where greater than 1,784 tons of metal are poured per year.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of sand reclaimed ----------------------------- Copper (T)................................ 0.217 0.12 Lead (T).................................. 0.396 0.194 Zinc (T).................................. 0.732 0.276 Total Phenols............................. 0.642 0.224 TTO....................................... 1.18 0.386 Oil and grease (for alternate monitoring). 22.4 7.47 ------------------------------------------------------------------------ (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.

PSES ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ kg/1,000 kkg (pounds per million pounds) of sand reclaimed ----------------------------- Copper (T)................................ 0.217 0.12 Lead (T).................................. 0.59 0.291 Zinc (T).................................. 1.1 0.418 Total Phenols............................. 0.642 0.224 TTO....................................... 1.18 0.386 Oil and grease (for alternate monitoring). 22.4 7.47 ------------------------------------------------------------------------ [50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]