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Current as of October 02, 2022 | Updated by FindLaw Staff
The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below.
(a) Galvanizing, terne coating and other coatings—
(1) Strip, sheet, and miscellaneous products.
SUBPART L |
||
---|---|---|
New source performance standards |
||
Pollutant or pollutant property |
Maximum for any 1 day |
Average of daily values for 30 consecutive days |
Kg/kkg (pounds per 1,000 lb) of product |
||
TSS |
0.0438 |
0.0188 |
O&G |
0.0188 |
0.00626 |
Lead |
0.000282 |
0.0000939 |
Zinc |
0.000376 |
0.000125 |
Chromium (hexavalent)1 |
0.0000376 |
0.0000125 |
pH |
(2) |
(2) |
1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.
2 Within the range of 6.0 to 9.0.
(2) [Reserved]
(b) Galvanizing and other coatings—
(1) Wire products and fasteners.
SUBPART L |
||
---|---|---|
New source performance standards |
||
Pollutant or pollutant property |
Maximum for any 1 day |
Average of daily values for 30 consecutive days |
Kg/kkg (pounds per 1,000 lb) of product |
||
TSS |
0.175 |
0.0751 |
O&G |
0.0751 |
0.0250 |
Lead |
0.00113 |
0.000376 |
Zinc |
0.00150 |
0.000500 |
Chromium (hexavalent)1 |
0.000150 |
0.0000501 |
pH |
(1) |
(1) |
1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.
2 Within the range of 6.0 to 9.0.
(2) [Reserved]
(c) Fume scrubbers.
SUBPART L |
||
---|---|---|
Pollutant or pollutant property |
||
New source performance standards |
Maximum for any 1 day |
Average of daily values for 30 consecutive days |
kg/per day |
||
TSS |
5.72 |
2.45 |
O&G |
2.45 |
0.819 |
Lead |
0.0368 |
0.0123 |
Zinc |
0.0491 |
0.0164 |
Chromium (hexavalent)1 |
0.00490 |
0.00163 |
pH |
(2) |
(2) |
1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.
2 Within the range of 6.0 to 9.0.
The above limitations shall be applicable to each fume scrubber associated with any of the coating operations specified above.
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.420.124 New source performance standards (NSPS) - last updated October 02, 2022 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-420-124/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature or via Westlaw before relying on it for your legal needs.
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