[Code of Federal Regulations]
[Title 40, Volume 22]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR142.46]

[Page 660]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 142_NATIONAL PRIMARY DRINKING WATER REGULATIONS IMPLEMENTATION--Table of 
 
Subpart E_Variances Issued by the Administrator Under Section 1415(a) of 
 
Sec. 142.46  Alternative treatment techniques.

    The Administrator may grant a variance from any treatment technique 
requirement of a national primary drinking water regulation to a 
supplier of water, whether or not the public water system for which the 
variance is requested is located in a State which has primary 
enforcement responsibility, upon a showing from any person that an 
alternative treatment technique not included in such requirement is at 
least as efficient in lowering the level of the contaminant with respect 
to which such requirements was prescribed. A variance under this 
paragraph shall be conditioned on the use of the alternative treatment 
technique which is the basis of the variance.