[Code of Federal Regulations]
[Title 40, Volume 27]
[Revised as ofJuly 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR434.53]

[Page 286]
 
                   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. 434.53  Effluent limitations guidelines representing the degree of effluent reduction attainable by application of the best available technology 
          economically achievable (BAT).

    (a) Reclamation areas. The limitations of this subsection apply to 
discharges from reclamation areas until SMCRA bond release.

Except as provided in 40 CFR 125.30-125.32, and Secs. 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 available technology economically achievable:

                        BAT Effluent Limitations
------------------------------------------------------------------------
      Pollutant or pollutant property                Limitations
------------------------------------------------------------------------
Settleable solids.........................  0.5 ml/l maximum not to be
                                             exceeded.
------------------------------------------------------------------------

    (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, and Secs. 434.61, 
434.62, and 434.63 of this part, the following limitations establish the 
concentration or quality of pollutants in acid or ferruginous mine 
drainage subject to the provisions of this subsection after application 
of the best available technology economically achievable:

                        BAT 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
------------------------------------------------------------------------

    (2) Except as provided in 40 CFR 125.30-125.32, and Secs. 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 
available technology economically achievable:

                        BAT 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
------------------------------------------------------------------------