[Code of Federal Regulations]
[Title 40, Volume 28]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR434.52]

[Page 283-284]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 434_COAL MINING POINT SOURCE CATEGORY BPT, BAT, BCT LIMITATIONS AND 
NEW SOURCE PERFORMANCE STANDARDS--Table of Contents
 
                       Subpart E_Post-Mining Areas
 
Sec. 434.52  Effluent limitations quidelines representing the degree of 

effluent reduction attainable by the application of the best practicable 
control technology currently available (BPT).

    (a) Reclamation areas. The limitations in this subsection apply to 
discharges from reclamation areas until the performance bond issued to 
the facility by the appropriate SMCRA authority has been released.

Except as provided in 40 CFR 125.30-125.32, 40 CFR 401.17 and Sec. Sec. 
434.61 and 434.63(d)(2) 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 
subsection after application of the best practicable control technology 
currently available:

                        BPT Effluent Limitations
------------------------------------------------------------------------
      Pollutant or pollutant property                Limitations
------------------------------------------------------------------------
Settleable Solids.........................  0.5 ml/l maximum not to be
                                             exceeded.
pH........................................  (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0 at all times.

    (b) Underground mine drainage. The limitations in this subsection 
apply to discharges from the underground workings of underground mines 
until SMCRA bond release.
    (1) Except as provided in 40 CFR 125.30-125.32, 40 CFR 401.17 and 
Sec. Sec. 434.61, 434.62 and 434.63 of this part, the following 
limitations establish the concentration of quality of pollutants in acid 
or ferruginous mine drainage subject to the provisions of this 
subsection after application of the best practicable control technology 
currently available:

                        BPT Effluent Limitations
------------------------------------------------------------------------
                                                              Average of
                                                                daily
                                                Maximum for   values for
        Pollutant or pollutant property          any 1 day        30
                                                             consecutive
                                                                 days
------------------------------------------------------------------------
                                                  Concentration in mg/l
                                               --------------
Iron, total...................................          7.0          3.5
Manganese, total..............................          4.0          2.0
TSS...........................................         70.0         35.0
pH............................................        (\1\)        (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0 at all times.

    (2) Except as provided in 40 CFR 125.30-125.32, 40 CFR 401.17, and 
Sec. Sec. 434.61 and 434.63 of this part, the following limitations 
establish the concentration or quality of pollutants in alkaline mine 
drainage subject to the provisions of this subsection after application 
of the best practicable control technology currently available:

[[Page 284]]



                        BPT Effluent Limitations
------------------------------------------------------------------------
                                                              Average of
                                                                daily
                                                Maximum for   values for
        Pollutant or pollutant property          any 1 day        30
                                                             consecutive
                                                                 days
------------------------------------------------------------------------
                                                  Concentration in mg/l
                                               --------------
Iron, total...................................          7.0          3.5
TSS...........................................         70.0         35.0
pH............................................        (\1\)        (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0 at all times.