[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: 40CFR434.42]

[Page 281]
 
                   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 D_Alkaline Mine Drainage
 
Sec. 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 
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 a point source subject to the provisions of this subpart 
after application of the best practicable control technology currently 
available:

                        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 6.0 to 9.0 at all times.