Millipore Technical Publications |
 | TN- MCB24 - FR Doc. 99–30901 | |
40 CFR Parts 141 and 143: National Primary and Secondary Drinking Water Regulations: Analytical Methods for Chemical and Microbiological Contaminants and Revisions to Laboratory Certification Requirements; Final Rule | ||
| Lit No: | MCB24 - FR Doc. 99–30901 | |
| Year: | 2002 | |
| ENVIRONMENTAL PROTECTION AGENCY 40 CFR Parts 141 and 143 [WH–FRL–6481–7] RIN 2040–AD04 National Primary and Secondary Drinking Water Regulations: Analytical Methods for Chemical and Microbiological Contaminants and Revisions to Laboratory Certification Requirements AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule. This final rule contains revisions to drinking water regulations that were proposed for public comment in separate documents dated July 31, 1998, September 3, 1998, and January 14, 1999. In this rule, EPA is approving the use of updated versions of 25 American Society for Testing and Materials (ASTM), 54 Standard Methods for Examination of Water and Wastewater (Standard Methods or SM) and 13 Environmental Protection Agency (EPA) analytical methods for compliance determinations of chemical contaminants in drinking water. At the same time, the Agency is withdrawing approval of the previous versions of the 13 EPA Methods. Previous versions of the SM and ASTM methods will continue to be approved. EPA is also approving use of a new medium and two new methods for simultaneous determination of total coliforms and E. coli., a new method for determination of lead, six new methods for determination of magnesium, and two new methods for determination of acid herbicides. The Agency is also making several technical corrections or clarifications to the regulations, amending the regulation to provide for changes in the composition of Performance Evaluation (PE) samples, requiring a successful PE sample analysis each year for chemical analyses, and requiring method specific laboratory certification criteria for reporting compliance data. This rule also adds two ASTM and two SM methods to those recommended for secondary monitoring of sulfate and chloride. |
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