40 CFR 420.127 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).

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§ 420.127 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).
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 conventional technology.
(a) Galvanizing, terne coating, and other coatings—
(1) Strip, sheet, and miscellaneous products.
Subpart L
Pollutant or pollutant property BCT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0.
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.175 0.0751
O&G 0.0751 0.0250
pH (1) (1)
(2) [Reserved]
(b) Galvanizing and other coatings—
(1) Wire products and fasteners.
Subpart L
Pollutant or pollutant property BCT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0.
Kg/kkg (pounds per 1,000 lb) of product
TSS 0.701 0.300
O&G 0.300 0.100
pH (1) (1)
(2) [Reserved]
(c) Fume scrubbers.
Subpart LBAT Effluent Limitations
Pollutant or pollutant property BCT effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days
1 Within the range of 6.0 to 9.0.
Kilograms per day
TSS 38.1 16.3
O&G 16.3 5.45
pH (1) (1)
The above limitations shall be applicable to each fume scrubber associated with any of the coating operations specified above.

Title 40 published on 2014-07-01

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