40 CFR 434.42 : Protection Of Environment (§ 1.1 To Parts 1851-1899) — (§ 425.01 To Parts 611-699) — Environmental Protection Agency (Continued) (§ 425.01 To Parts 611-699) — Effluent Guidelines And Standards (Continued) (§ 425.01 To § 471.106) — Coal Mining Point Source Category Bpt, Bat, Bct Limitations And New Source Performance Standards (§ 434.10 To Appendix B To Part 434) — Alkaline Mine Drainage (§ 434.40 To § 434.45) — Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

4 Aug 2016

Except as provided in 40 CFR 125.30-125.32, 40 CFR 401.17, and §§ 434.61 and 434.63 of this part, the following limitations establish the concentration or quality of pollutants which may be discharged by a point source subject to the provisions of this subpart after application of the best practicable control technology currently available:

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Average of daily values for 30 consecutive days
Concentration in mg/l
Iron, total 7.0 3.5
TSS 70. 35.
pH ( 1) ( 1)

1 Within the range 6.0 to 9.0 at all times.

40 CFR 434.42