---
kind: "section"
citation: "40 C.F.R. § 434.83"
title: "40"
number: "434.83"
heading: "Effluent limitations attainable by application of the best available technology economically achievable (BAT)."
url: "https://uscodex.org/cfr/40/434.83"
---

# §434.83. Effluent limitations attainable by application of the best available technology economically achievable (BAT).


Except as provided in [40 CFR 125.30 through 125.32](/cfr/40/125.30..125.32.md), any existing western coal mining operation with drainage subject to this subpart must meet the effluent limitations in [§ 434.82](/cfr/40/434.82.md).


## Notes

### Source

Source: 67 FR 3407, Jan. 23, 2002, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1311 1314(b), (c), (e), and (g), 1316(b) and (c), 1317(b) and (c), and 1361.

### Source

Source: 50 FR 41305, Oct. 9, 1985, unless otherwise noted.