[Code of Federal Regulations]
[Title 40, Volume 28]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR425.85]

[Page 18]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 425_LEATHER TANNING AND FINISHING POINT SOURCE CATEGORY--Table of 
Contents
 
                      Subpart H_Pigskin Subcategory
 
Sec. 425.85  Pretreatment standards for existing sources (PSES).

    Except as provided in Sec. 425.04 and 40 CFR 403.7 and 403.13, any 
existing source subject to this subpart that introduces process 
wastewater pollutants into a publicly owned treatment works must comply 
with 40 CFR part 403, and achieve the following pretreatment standards:

------------------------------------------------------------------------
                                                          PSES
                                               -------------------------
        Pollutant or pollutant property                      Maximum for
                                                Maximum for    monthly
                                                 any 1 day     average
------------------------------------------------------------------------
                                                Milligrams per liter (mg/
                                                           l)
-----------------------------------------------
Sulfide.......................................           24  ...........
Total chromium................................           12            8
pH............................................        (\1\)        (\1\)
------------------------------------------------------------------------
\1\ Not less than 7.0.


[47 FR 52870, Nov. 23, 1982, as amended at 61 FR 35685, July 8, 1996]