[Code of Federal Regulations]
[Title 40, Volume 29]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR434.23]

[Page 279]
 
                   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 B_Coal Preparation Plants and Coal Preparation Plant Associated 
                                  Areas
 
Sec. 434.23  Effluent limitations guidelines representing the degree of effluent reduction 
attainable by application of the best available technology 
          economically achievable (BAT).

    (a) Except as provided in 40 CFR 125.30-125.32, and Sec. Sec. 
434.61, 434.62 and 434.63 of this part, the following limitations 
establish the concentration or quality of pollutants which may be 
discharged by any existing coal preparation plant and coal preparation 
plant associated areas subject to the provisions of this subpart after 
application of the best available technology economically achievable if 
discharges from such point sources normally exhibit a pH of less than 
6.0 prior to treatment:

                        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
------------------------------------------------------------------------

    (b) Except as provided in 40 CFR 125.30-125.32, and Sec. Sec. 
434.61 and 434.63 of this part, the following limitations establish the 
concentration or quality of pollutants which may be discharged by any 
existing coal preparation plant and coal preparation plant associated 
areas subject to the provisions of this subpart after application of the 
best available technology economically achievable if discharges from 
such point sources normally exhibit a pH equal to or greater than 6.0 
prior to treatment:

                        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
------------------------------------------------------------------------