CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS (Parts 400–471) > PART 464—METAL MOLDING AND CASTING POINT SOURCE CATEGORY > SUBPART B—Copper Casting Subcategory (§464.20 to §464.27) > 464.26—Pretreatment standards for new sources.

464.26—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 Quench Operations.
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) 0.0307 0.0168
Lead (T) 0.0211 0.0104
Zinc (T) 0.0303 0.0116
TTO 0.0335 0.0109
Oil and grease (for alternate monitoring) 1.2 0.399
(b) Direct Chill Casting Operations.
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) 0.928 0.506
Lead (T) 0.639 0.314
Zinc (T) 0.916 0.35
(c) Dust Collection Scrubber Operations.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
kg/62.3 Million Sm3 (pounds per billion SCF) of air scrubbed
Copper (T) 0.552 0.301
Lead (T) 0.38 0.187
Zinc (T) 0.545 0.208
Total Phenols 0.617 0.215
TTO 1.65 0.54
Oil and Grease (for alternate monitoring 21.5 7.18
(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.
(e) Investment Casting.
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) 8.48 4.63
Lead (T) 5.84 2.86
Zinc (T) 8.37 3.19
TTO 25.4 8.29
Oil and Grease (for alternate monitoring 330 110
(f) Melting Furnace Scrubber Operations.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed
Copper (T) 1.81 0.988
Lead (T) 1.25 0.612
Zinc (T) 1.79 0.673
Total Phenols 2.02 0.706
TTO 5.41 1.77
Oil and Grease (for alternate monitoring 70.6 23.5
(g) Mold Cooling Operations.
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) 0.392 0.214
Lead (T) 0.27 0.132
Zinc (T) 0.387 0.148
TTO 0.428 0.14
Oil and Grease (for alternate monitoring 15.3 5.09
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 Quench Operations.
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) 0.0307 0.0168
Lead (T) 0.0211 0.0104
Zinc (T) 0.0303 0.0116
TTO 0.0335 0.0109
Oil and grease (for alternate monitoring) 1.2 0.399
(b) Direct Chill Casting Operations.
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) 0.928 0.506
Lead (T) 0.639 0.314
Zinc (T) 0.916 0.35
(c) Dust Collection Scrubber Operations.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
kg/62.3 Million Sm3 (pounds per billion SCF) of air scrubbed
Copper (T) 0.552 0.301
Lead (T) 0.38 0.187
Zinc (T) 0.545 0.208
Total Phenols 0.617 0.215
TTO 1.65 0.54
Oil and Grease (for alternate monitoring 21.5 7.18
(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.
(e) Investment Casting.
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) 8.48 4.63
Lead (T) 5.84 2.86
Zinc (T) 8.37 3.19
TTO 25.4 8.29
Oil and Grease (for alternate monitoring 330 110
(f) Melting Furnace Scrubber Operations.
PSNS
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed
Copper (T) 1.81 0.988
Lead (T) 1.25 0.612
Zinc (T) 1.79 0.673
Total Phenols 2.02 0.706
TTO 5.41 1.77
Oil and Grease (for alternate monitoring 70.6 23.5
(g) Mold Cooling Operations.
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) 0.392 0.214
Lead (T) 0.27 0.132
Zinc (T) 0.387 0.148
TTO 0.428 0.14
Oil and Grease (for alternate monitoring 15.3 5.09