[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: 40CFR422.40]

[Page 645]
 
                TITLE 40-PROTECTION OF ENVIRONMENT
 
      CHAPTER I-ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 422-PHOSPHATE MANUFACTURING POINT SOURCE CATEGORY--Table of Contents
 
        Subpart D-Defluorinated Phosphate Rock Subcategory
 
Sec. 422.40  Applicability; description of the defluorinated phosphate rock subcategory.

    Source: 41 FR 25975, June 23, 1976, unless otherwise noted.


    The provisions of this subpart are applicable to discharges 
resulting from the defluorination of phosphate rock by application of 
high temperature treatment along with wet process phosphoric acid, 
silica and other reagents.