40 CFR 420.125 - Pretreatment standards for existing sources (PSES).

§ 420.125 Pretreatment standards for existing sources (PSES).
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) Galvanizing, terne coating and other coatings—
(1) Strip, sheet, and miscellaneous products.
Subpart L
Pretreatment standards for existing sources Pollutant or pollutant property
Maximum for any 1 day Average of daily values for 30 consecutive days
1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.
Kg/kkg (pounds per 1,000 lb) of product
Lead 0.00113 0.000376
Zinc 0.00150 0.000500
Chromium (hexavalent) 1 0.000150 0.0000501
(2) [Reserved]
(b) Galvanizing and other coatings—
(1) Wire products and fasteners.
Subpart L
Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.
kg/kkg (pounds per 1,000 lb) of product
Lead 0.00451 0.00150
Zinc 0.00601 0.00200
Chromium (hexavalent) 1 0.000601 0.000200
(2) [Reserved]
(c) Fume scrubbers.
Subpart L
Pollutant or pollutant property Pretreatment standards for existing sources
Maximum for any 1 day Average of daily values for 30 consecutive days
1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.
Kg per day
Lead 0.0368 0.0123
Zinc 0.0491 0.0164
Chromium (hexavalent) 1 0.00490 0.00163
The above limitations shall be applicable to each fume scrubber associated with any of the coating operations specified above.
[47 FR 23284, May 27, 1982, as amended at 49 FR 21037, May 17, 1984]

Title 40 published on 2013-07-01

no entries appear in the Federal Register after this date.

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