[Code of Federal Regulations]

[Title 40, Volume 29]

[Revised as of July 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR437.40]



[Page 369-370]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 437_THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY--Table 

of Contents

 

                     Subpart D_Multiple Wastestreams

 

Sec. 437.40  Applicability.





    (a) Except as provided in Sec. 437.1(b), (c), or (d) or in 

paragraph (b) of this section, facilities that treat wastes subject to 

more than one of the previous Subparts must comply with either 

provisions of this subpart or the applicable provisions of Subpart A, B, 

or C. The provisions of this subpart are applicable to that portion of 

wastewater discharges from a centralized waste treatment facility that 

results from mixing any combination of treated or untreated waste 

otherwise subject to Subpart A, Subpart B, or Subpart C of this part 

only if a facility requests the permit writer or control authority to 

develop Subpart D limitations (or standards) and establishes that it 

provides equivalent treatment as defined in Sec. 437.2(h).



[[Page 370]]



    (b) In order to ensure appropriate treatment rather than dilution of 

dissimilar wastes, an NPDES permit writer or control authority may 

require a new or existing facility subject to paragraph (a) of this 

section to achieve alternative effluent limitations or standards as 

defined in Sec. 437.2 (b) in the following circumstances:

    (1) The facility receives, on a continuing basis, flows of process 

wastewater from five or fewer facilities subject to 40CFR Subchapter N 

limitations and standards; and

    (2) The process wastewater flows received for treatment at the 

facility have relatively consistent pollutant profiles.