[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: 40CFR141.27]

[Page 419]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 141_NATIONAL PRIMARY DRINKING WATER REGULATIONS--Table of Contents
 
            Subpart C_Monitoring and Analytical Requirements
 
Sec. 141.27  Alternate analytical techniques.

    (a) With the written permission of the State, concurred in by the 
Administrator of the U.S. EPA, an alternate analytical technique may be 
employed. An alternate technique shall be accepted only if it is 
substantially equivalent to the prescribed test in both precision and 
accuracy as it relates to the determination of compliance with any MCL. 
The use of the alternate analytical technique shall not decrease the 
frequency of monitoring required by this part.

[45 FR 57345, Aug. 27, 1980]