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Clean Water Act Analytical Methods
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Methods Update Rule Support Documents

Related Information
  • Methods Update Rules (General overview)
  • 2021 Final MUR - Overview
  • 2017 Final MUR - Overview
Documents related to Methods Update Rules (MURs).

  • Fact Sheet: Final Clean Water Act Methods Update Rule for the Analysis of Effluent (pdf) (112.08 KB, March 2021, 821-F-21-002)
  • Fact Sheet: Final Clean Water Act Methods Update Rule for the Analysis of Effluent (pdf) (120.77 KB, August 2017, 821-F-17-001)
  • Validation of SPE Products and Associated Procedures with EPA Method 625.1 (pdf) (195.3 KB, December 2016, 821-R-16-020)
    Summarizes the requirements for laboratories to utilize solid-phase extraction (SPE) as an extraction technique in EPA Method 625.1.
  • CWA Methods Home
  • PFAS Methods
  • Methods Update Rules
  • Approved Chemical Methods
  • Approved Microbiological Methods
  • Approved WET Methods
  • Approved Radiochemical Methods
  • Approved Industry-Specific Methods
  • Other CWA Methods: Chemical
  • Other CWA Methods: Microbiological
  • Other CWA Methods: Biosolids
  • Alternate Test Procedures
  • Regulatory History
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on November 14, 2022
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