[Code of Federal Regulations]
[Title 40, Volume 27]
[Revised as ofJuly 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR436.185]

[Page 358-359]
 
                   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

[[Page 359]]

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]