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.
PSES
| 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 Operation.
PSES
| 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 |
| TT0 | 0.029 | 0.0095 |
| Oil and grease (for alternate monitoring) | 0.363 | 0.121 |
(c) Die Casting Operations.
PSES
| 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.
PSES
| 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 | 3.00 |
(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.
(f) Investment Casting.
PSES
| 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.
PSES
| 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.
PSES
| 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 |
[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]