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 A—Aluminum Casting Subcategory (§464.10 to §464.17) > 464.16—Pretreatment standards for new sources.

464.16—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.
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) 0.0771 0.0421
Lead (T) 0.0791 0.039
Zinc (T) 0.114 0.0431
(b) 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) 0.0093 0.0051
Lead (T) 0.0096 0.0047
Zinc (T) 0.0138 0.0052
TTO 0.029 0.0095
Oil and grease (for alternate monitoring) 0.363 0.121
(c) Die 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) 0.0066 0.0036
Lead (T) 0.0068 0.0034
Zinc (T) 0.0098 0.0037
Total Phenols 0.0074 0.0026
TTO 0.0308 0.01
Oil and grease (for alternate monitoring) 0.259 0.0864
(d) 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) 0.231 0.126
Lead (T) 0.237 0.117
Zinc (T) 0.343 0.129
Total Phenols 0.258 0.09
TTO 0.613 0.2
Oil and grease (for alternate monitoring) 9.01 3.0
(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.
(f) 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) 8.7 4.3
Zinc (T) 12.6 4.74
TTO 18.1 5.91
Oil and grease (for alternate monitoring) 330 110
(g) 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) 3.01 1.64
Lead (T) 3.09 1.52
Zinc (T) 4.45 1.68
Total Phenols 3.36 1.17
TTO 7.97 2.6
Oil and grease (for alternate monitoring) 117 39.1
(h) 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) 0.297 0.162
Lead (T) 0.305 0.151
Zinc (T) 0.44 0.166
TTO 0.935 0.304
Oil and grease (for alternate monitoring) 11.6 3.86
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.
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) 0.0771 0.0421
Lead (T) 0.0791 0.039
Zinc (T) 0.114 0.0431
(b) 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) 0.0093 0.0051
Lead (T) 0.0096 0.0047
Zinc (T) 0.0138 0.0052
TTO 0.029 0.0095
Oil and grease (for alternate monitoring) 0.363 0.121
(c) Die 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) 0.0066 0.0036
Lead (T) 0.0068 0.0034
Zinc (T) 0.0098 0.0037
Total Phenols 0.0074 0.0026
TTO 0.0308 0.01
Oil and grease (for alternate monitoring) 0.259 0.0864
(d) 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) 0.231 0.126
Lead (T) 0.237 0.117
Zinc (T) 0.343 0.129
Total Phenols 0.258 0.09
TTO 0.613 0.2
Oil and grease (for alternate monitoring) 9.01 3.0
(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.
(f) 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) 8.7 4.3
Zinc (T) 12.6 4.74
TTO 18.1 5.91
Oil and grease (for alternate monitoring) 330 110
(g) 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) 3.01 1.64
Lead (T) 3.09 1.52
Zinc (T) 4.45 1.68
Total Phenols 3.36 1.17
TTO 7.97 2.6
Oil and grease (for alternate monitoring) 117 39.1
(h) 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) 0.297 0.162
Lead (T) 0.305 0.151
Zinc (T) 0.44 0.166
TTO 0.935 0.304
Oil and grease (for alternate monitoring) 11.6 3.86