[Code of Federal Regulations]

[Title 40, Volume 28]

[Revised as of July 1, 2006]

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

[CITE: 40CFR422.30]



[Page 637]

 

                   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.