[Code of Federal Regulations]
[Title 40, Volume 27]
[Revised as ofJuly 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR440.32]

[Page 417-418]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 440--ORE MINING AND DRESSING POINT SOURCE CATEGORY--Table of Contents
 
        Subpart C--Uranium, Radium and Vanadium Ores Subcategory
 
Sec. 440.32  Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology 
          currently available (BPT).

    Except as provided in subpart L of this part and 40 CFR 125.30 
through 125.32, any existing point source subject to this subpart must 
achieve the following effluent limitations representing the degree of 
effluent reduction attainable after application of the

[[Page 418]]

best practicable control technology currently available (BPT):
    (a) The concentration of pollutants discharged in mine drainage from 
mines, either open-pit or underground, from which uranium, radium and 
vanadium ores are produced excluding mines using in-situ leach methods 
shall not exceed:

------------------------------------------------------------------------
                                                   Effluent limitations
                                                ------------------------
                                                              Average of
                                                                daily
            Effluent characteristic                Maximum    values for
                                                  for any 1       30
                                                     day     consecutive
                                                                 days
------------------------------------------------------------------------
                                                   Milligrams per liter
                                                -------------
TSS............................................        30           20
COD............................................       200          100
Zn.............................................         1.0          0.5
Ra226 \1\ (dissolved)..........................        10            3
Ra226 \1\ (total)..............................        30           10
U..............................................         4            2
pH.............................................     (\2\)        (\2\)
------------------------------------------------------------------------
\1\ Values in picocuries per liter (pCi/l).
\2\ Within the range 6.0 to 9.0.

    (b) The concentrations of pollutants discharged from mills using the 
acid leach, alkaline leach or combined acid and alkaline leach process 
for the extraction of uranium, radium and vanadium including mill-mine 
facilities and mines using in-situ leach methods shall not exceed:

------------------------------------------------------------------------
                                                  Effluent limitations
                                               -------------------------
                                                              Average of
                                                                daily
            Effluent characteristic             Maximum for   values for
                                                 any 1 day        30
                                                             consecutive
                                                                 days
------------------------------------------------------------------------
                                                  Milligrams per liter
                                               --------------
TSS...........................................        30            20
COD...........................................  ...........        500
As............................................         1.0            .5
Zn............................................         1.00           .5
Ra226 \1\ (dissolved).........................        10             3
Ra226 \1\ (total).............................        30            10
NH \3\........................................  ...........        100
pH............................................     (\2\)         (\2\)
------------------------------------------------------------------------
\1\ Values in picocuries per liter (pCi/l).
\2\ Within the range 6.0 to 9.0.