[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: 40CFR434.22]

[Page 278-279]
 
                   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. 434.22  Effluent limitation guidelines representing the degree of effluent reduction 
attainable by the application of the best practicable control 
          technology currently available (BPT).

    (a) 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 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 practicable control technology 
currently available if discharges from such point sources normally 
exhibit a pH of less than 6.0 prior to treatment:

                        BPT Effluent Limitations
------------------------------------------------------------------------
                                                             Average of
                                                            daily values
       Pollutant or pollutant property         Maximum for     for 30
                                                any 1 day    consecutive
                                                                days
------------------------------------------------------------------------
                                                 Concentration in mg/l
                                             ---------------------------
Iron, total.................................           7.0           3.5
Manganese, total............................           4.0           2.0
TSS.........................................          70            35
pH..........................................         \1\           \1\
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0 at all times.

    (b) 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 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 practicable control technology currently 
available if discharges from such point sources normally exhibit a pH 
equal to or greater than 6.0 prior to treatment:

[[Page 279]]



                        BPT Effluent Limitations
------------------------------------------------------------------------
                                                             Average of
                                                            daily values
       Pollutant or pollutant property         Maximum for     for 30
                                                any 1 day    consecutive
                                                                days
------------------------------------------------------------------------
                                                 Concentration in mg/l
                                             ---------------------------
Iron, total.................................         7.0           3.5
TSS.........................................        70            35
pH..........................................       \1\           \1\
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0 at all times.