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 Quench Operations.
| 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) | 0.0344 | 0.0187
|
| Lead (T) | 0.0237 | 0.0116
|
| Zinc (T) | 0.0339 | 0.0129
|
| TTO | 0.093 | 0.0304
|
| Oil and grease (for alternate monitoring) | 1.34 | 0.446 |
(b) Die Casting Operations.
| 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) | 0.0046 | 0.0022
|
| Zinc (T) | 0.0066 | 0.0025
|
| Total phenols | 0.0074 | 0.0026
|
| TTO | 0.0196 | 0.0064
|
| Oil and grease for alternate monitoring) | 0.259 | 0.0864 |
(c) Melting Furnace Scrubber Operations.
| Pollutant or pollutant property
| Maximum for any 1 day
| Maximum for monthly average
|
|---|
| | kg/62.3 million Sm
3 (pounds per billion SCF) of air scrubbed
|
| Copper (T) | 1.56 | 0.852
|
| Lead (T) | 1.07 | 0.527
|
| Zinc (T) | 1.54 | 0.588
|
| Total phenols | 1.74 | 0.608
|
| TTO | 3.95 | 1.29
|
| Oil and grease for alternate monitoring) | 60.8 | 20.3 |
(d) Mold Cooling Operations.
| 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) | 0.304 | 0.166
|
| Lead (T) | 0.209 | 0.103
|
| Zinc (T) | 0.3 | 0.114
|
| TTO | 0.821 | 0.268
|
| Oil and grease for alternate monitoring) | 11.8 | 3.94 |
source: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.
cite as: 40 CFR 464.45