[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: 40CFR411.20]



[Page 193-194]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 411_CEMENT MANUFACTURING POINT SOURCE CATEGORY--Table of Contents

 

                     Subpart B_Leaching Subcategory

 

Sec.  411.20  Applicability; description of the leaching subcategory.





    The provisions of this subpart are applicable to discharges 

resulting from the process in which several mineral ingredients 

(limestone or other natural sources of calcium carbonate, silica, 

alumina, and iron together with gypsum) are used in the manufacturing of



[[Page 194]]



cement and in which kiln dust is contacted with water as an integral 

part of the process or water is used in wet scrubbers to control kiln 

stack emissions.