Except as provided in 40 CFR 125.30 through 125.32 , any existing western coal mining operation with drainage subject to this subpart must meet the effluent limitations in § 434.82 .
40 C.F.R. § 434.83
Except as provided in 40 CFR 125.30 through 125.32 , any existing western coal mining operation with drainage subject to this subpart must meet the effluent limitations in § 434.82 .
40 C.F.R. § 434.83