40 CFR § 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
1 Within the range of 6.0 to 9.0.
(2) Recirculation—multiple stands.
Subpart J
1 Within the range of 6.0 to 9.0.
(3) Combination.
Subpart J
1 Within the range of 6.0 to 9.0.
(4) Direct application—single stand.
Subpart J
1 Within the range of 6.0 to 9.0.
(5) Direct application—multiple stands.
Subpart J
1 Within the range of 6.0 to 9.0.
(b) Cold worked pipe and tube—(1) Using water.
Subpart J
1 Within the range of 6.0 to 9.0
(2) Using oil solutions.
Subpart J
1 Within the range of 6.0 to 9.0