40 CFR 420.123 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

§ 420.123 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
(a) Galvanizing, terne coating and other coatings—
(1) Strip, sheet, and miscellaneous products scrubbers.
Subpart L
Pollutant or pollutant property BAT effluent limitations
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 wastewater 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 BAT effluent limitations
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 BAT effluent limitations
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 21036, May 17, 1984]

Title 40 published on 2013-07-01

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