40 CFR § 466.23
New source performance standards
June 9, 2020
Any new source subject to this subpart must achieve the following new source performance standards.
(a) There shall be no discharge of process wastewater pollutants from metal preparation operations.
(b) The discharge of process wastewater pollutants from all porcelain enameling coating operations shall not exceed the values set forth below:
Subpart B—NSPS
Open Table
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | ||
|---|---|---|---|---|
| Mg/m2 (pounds per million ft2) of area coated | ||||
| Chromium | 0.47 | (0.10) | 0.19 | (0.04) |
| Lead | 0.13 | (0.03) | 0.11 | (0.02) |
| Nickel | 0.69 | (0.14) | 0.47 | (0.10) |
| Zinc | 1.29 | (0.27) | 0.53 | (0.11) |
| Aluminum | 3.82 | (0.78) | 1.56 | (0.32) |
| Iron | 1.55 | (0.32) | 0.79 | (0.16) |
| Oil and grease | 12.60 | (2.58) | 12.60 | (2.58) |
| TSS | 18.91 | (3.87) | 15.12 | (3.10) |
| pH | (1) | (1) | (1) | (1) |
1Within the range 7.5 to 10.0 at all times.
[47 FR 53184, Nov. 24, 1982, as amended at 50 FR 36544, Sept. 6, 1985]
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