[Code of Federal Regulations]
[Title 40, Volume 26]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR422.30]

[Page 645]
 
                TITLE 40-PROTECTION OF ENVIRONMENT
 
      CHAPTER I-ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 422-PHOSPHATE MANUFACTURING POINT SOURCE CATEGORY--Table of Contents
 
                 Subpart C-Phosphate Subcategory
 
Sec. 422.30  Applicability; description of the phosphate subcategory.


    The provisions of this subpart are applicable to discharges of 
pollutants resulting from the manufacture of sodium tripolyphosphate, 
animal feed grade, calcium phosphate and human food grade calcium 
phosphate from phosphoric acid. The production of human food grade 
calcium phosphate creates waste water pollutants not completely amenable 
to the procedures utilized for best practicable control technology 
currently available. The standards set for human food grade calcium 
phosphates accordingly must differ from the rest of the subcategory at 
this level of treatment.