EPA Finalizes Changes to Part 136 Affecting Laboratories that Perform Water Testing

Method Update Rule
Oral Presentation

Prepared by

Contact Information: jerry.parr@nelac-institute.org; 817-598-1155


EPA has finalized a Methods Update Rule (MUR) that:

  • Replaced Methods 608, 624, and 625 with updated versions of these methods,

  • Approved over 100 methods published by ASTM International, Standard Methods, several vendors and other organizations,

  • Clarified the procedures for EPA approval of nationwide and limited use ATPs,

  • Amended the procedure for determination of the method detection limit (MDL) in Appendix B, and

  • Made many other minor changes affecting methods, sample preservation and other issues.

This presentation will provide an overview of the rule.