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466.34—Pretreatment standards for existing sources.
(a)
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.
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| Milligrams per liter (mg/l) | ||
| Chromium | 0.42 | 0.17 |
| Lead | 0.15 | 0.13 |
| Nickel | 1.41 | 1.00 |
| Zinc | 1.33 | 0.56 |
(b)
In cases where POTW find it necessary to impose mass pretreatment standards the following equivalent mass standards are provided:
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | ||
|---|---|---|---|---|
| Metal preparation | Coating operation | Metal preparation | Coating operation | |
| Metric units—mg/m2 of area processed or coated | ||||
| Chromium | 16.34 | 0.53 | 6.62 | 0.22 |
| Lead | 5.84 | 0.19 | 5.06 | 0.16 |
| Nickel | 54.85 | 1.78 | 38.9 | 1.26 |
| Zinc | 51.74 | 1.68 | 21.79 | 1.71 |
| English units—pounds per 1 million ft2 of area processed or coated | ||||
| Chromium | 3.35 | 0.11 | 1.36 | 0.05 |
| Lead | 1.20 | 0.04 | 1.04 | 0.03 |
| Nickel | 11.24 | 0.37 | 7.97 | 0.25 |
| Zinc | 10.6 | 0.35 | 4.46 | 0.35 |
Code of Federal Regulations
(a)
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.
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| Milligrams per liter (mg/l) | ||
| Chromium | 0.42 | 0.17 |
| Lead | 0.15 | 0.13 |
| Nickel | 1.41 | 1.00 |
| Zinc | 1.33 | 0.56 |
(b)
In cases where POTW find it necessary to impose mass pretreatment standards the following equivalent mass standards are provided:
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | ||
|---|---|---|---|---|
| Metal preparation | Coating operation | Metal preparation | Coating operation | |
| Metric units—mg/m2 of area processed or coated | ||||
| Chromium | 16.34 | 0.53 | 6.62 | 0.22 |
| Lead | 5.84 | 0.19 | 5.06 | 0.16 |
| Nickel | 54.85 | 1.78 | 38.9 | 1.26 |
| Zinc | 51.74 | 1.68 | 21.79 | 1.71 |
| English units—pounds per 1 million ft2 of area processed or coated | ||||
| Chromium | 3.35 | 0.11 | 1.36 | 0.05 |
| Lead | 1.20 | 0.04 | 1.04 | 0.03 |
| Nickel | 11.24 | 0.37 | 7.97 | 0.25 |
| Zinc | 10.6 | 0.35 | 4.46 | 0.35 |
Code of Federal Regulations
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