Statutes, codes, and regulations
Code of Federal Regulations
Title 40 - PROTECTION OF ENVIRONMENTChapter I - ENVIRONMENTAL PROTECTION AGENCYSubchapter N - EFFLUENT GUIDELINES AND STANDARDSPart 434 - COAL MINING POINT SOURCE CATEGORY BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS
Subpart D - ALKALINE MINE DRAINAGE
Section 434.42 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)

40 C.F.R. § 434.42

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Current through September 30, 2024
Section 434.42 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)

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, total7.03.5
TSS70.35.
pH(1)(1)

1 Within the range 6.0 to 9.0 at all times.

40 C.F.R. §434.42