Code of Massachusetts Regulations
310 CMR - DEPARTMENT OF ENVIRONMENTAL PROTECTION
Title 310 CMR 22.00 - Drinking Water
Section 22.10 - Alternative Analytical Methods

(1) With the express written permission of the Department, given after a public hearing and the approval of the Administrator or the Administrator's designee, an alternate analytical technique may be employed for any analytical technique prescribed in 310 CMR 22.00. The Department shall give such permission only if the alternative technique is substantially equivalent to the prescribed test in both precision and accuracy as it relates to the determination of compliance with any maximum contaminant level. The use of the alternative analytical technique shall not alter the frequency of monitoring required by 310 CMR 22.00.

(2) The Department shall approve all USEPA Alternative Testing Methods approved for analyses under the Safe Drinking Water Act that are identified in 40 CFR 141, Subpart C, Appendix A. These methods are also listed at http://www.ecfr.gov/cgi-bin/text-idx?SID=fda778b5ffa108853e7f2eb78b656c5a&mc=true&node=sp40.23.141.c&rgn=div6#ap40.23.141_129.a. The use of these alternative analytical techniques shall not alter the frequency of monitoring required by 310 CMR 22.00 and laboratories seeking to use the methods must comply with all requirements of 310 CMR 42.00: Certification and Operation of Environmental Analysis Laboratories.