[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: 40CFR440.63]

[Page 419-420]
 
                   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. 440.63  Effluent limitations representing the degree of effluent reduction attainable
by the application of the best available technology economically 
          achievable (BAT).

    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 limitations representing the degree of effluent 
reduction attainable by the application of the best available technology 
economically achievable (BAT):
    (a) The concentration of pollutants discharged in mine drainage from 
tungsten mines shall not exceed:

[[Page 420]]



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

    (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
------------------------------------------------------------------------