[Code of Federal Regulations]
[Title 40, Volume 27]
[Revised as ofJuly 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR440.64]

[Page 424]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 440--ORE MINING AND DRESSING POINT SOURCE CATEGORY--Table of Contents
 
                   Subpart F--Tungsten Ore Subcategory
 
Sec. 440.64  New source performance standards (NSPS).

    Except as provided in subpart L of this part any new source subject 
to this subpart must achieve the following NSPS representing the degree 
of effluent reduction attainable by the application of the best 
available demonstrated technology (BADT):
    (a) The concentration of pollutants discharged in mine drainage from 
tungsten mines shall not exceed:

------------------------------------------------------------------------
                                                 Effluent limitations
                                             ---------------------------
                                                             Average of
           Effluent characteristic                          daily values
                                               Maximum for     for 30
                                                any 1 day    consecutive
                                                                days
------------------------------------------------------------------------
                                                 Milligrams per liter
                                             ---------------
Cd..........................................          0.10          0.05
Cu..........................................          0.30          0.15
Zn..........................................          1.0           0.5
pH..........................................      (\1\)         (\1\)
TSS.........................................         30.0          20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0.

    (b) The concentration of pollutants discharged from mills shall not 
exceed:

------------------------------------------------------------------------
                                                 Effluent limitations
                                             ---------------------------
                                                             Average of
           Effluent characteristic                          daily values
                                               Maximum for     for 30
                                                any 1 day    consecutive
                                                                days
------------------------------------------------------------------------
                                                 Milligrams per liter
                                             ---------------
Cd..........................................          0.10          0.05
Cu..........................................          0.3           0.15
Zn..........................................          1.0           0.5
pH..........................................      (\1\)         (\1\)
TSS.........................................         30.0          20.0
------------------------------------------------------------------------
\1\ Within the range of 6.0 to 9.0.