40 CFR 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