40 CFR 420.107 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).

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§ 420.107 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) Cold rolling mills—
(1) Recirculation—single stand.
Subpart J
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 0.00125 0.000626
O&G 0.000522 0.000209
pH (1) (1)
(2) Recirculation—multiple stands.
Subpart J
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 0.00626 0.00313
O&G 0.00261 0.00104
pH (1) (1)
(3) Combination.
Subpart J
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 0.0751 0.0376
O&G 0.0313 0.0125
pH (1) (1)
(4) Direct application—single stand.
Subpart J
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 0.0225 0.0113
O&G 0.00939 0.00376
pH (1) (1)
(5) Direct application—multiple stands.
Subpart J
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 0.100 0.0501
O&G 0.0417 0.0167
pH (1) (1)
(b) Cold worked pipe and tube—
(1) Using water.
Subpart J
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 0.00125 0.000626
O&G 0.000522 0.000209
pH (1) (1)
(2) Using oil solutions.
Subpart J
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 0.00125 0.000626
O&G 0.000522 0.000209
pH (1) (1)
[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984]

Title 40 published on 2013-07-01

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