[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: 40CFR436.185]

[Page 355]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 436_MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY
--Table of Contents
 
                  Subpart R_Phosphate Rock Subcategory
 
Sec. 436.185  Standards of performance for new sources.

    (a) Subject to the provisions of paragraph (b) of this section, the 
following limitations establish the quantity or quality of pollutants or 
pollutant properties, controlled by this section, which may be 
discharged by a point source subject to the provisions of this subpart 
after application of the best available demonstrated control technology.
    (1) Discharges of process generated waste water and mine dewatering 
discharges, shall not exceed the following limitations:

------------------------------------------------------------------------
                                                Effluent limitations
                                           -----------------------------
                                                        Average of daily
          Effluent characteristic             Maximum     values for 30
                                             for any 1  consecutive days
                                                day         shall not
                                                            exceed--
------------------------------------------------------------------------
TSS.......................................     60 mg/l          30 mg/l.
pH........................................       (\1\)             (\1\)
------------------------------------------------------------------------
\1\ Within the range 6.0 to 9.0.

    (b) Any overflow from facilities governed by this subpart shall not 
be subject to the limitations of paragraph (a) of this section if the 
facilities are designed, constructed and maintained to contain or treat 
the volume of waste water which would result from a 10-year 24-hour 
precipitation event.

[43 FR 9810, Mar. 10, 1978]