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  1. Home
  2. Clean Water Act Analytical Methods

Procedures for Detection and Quantitation - Documents

  • Related Information
    • MDL Frequent Questions
    • Procedures for Detection and Quantitation (overview)
    Method Detection Limit (MDL) Procedure Revision 2 (2016)
  • Federal Advisory Committee Report (2007)
  • Laboratory Study On Detection and Quantitation Procedures (2011)
 

  • Definition and Procedure for the Determination of the Method Detection Limit, Revision 2 (pdf) (214.11 KB, December 2016, 821-R-16-006)
  • Report of the Federal Advisory Committee on Detection and Quantitation Approaches and Uses in Clean Water Act Programs (pdf) (1.92 MB, December 2007)
    This report provides advice and recommendations for the development of an improved procedure for determining detection and quantitation limits, and use of these limits in NPDES permit reporting and compliance determinations.
  • A Laboratory Study of Procedures Evaluated by the Federal Advisory Committee on Detection and Quantitation Approaches and Uses in Clean Water Act Programs (pdf) (1.32 MB, December 2011, 821-R-11-005)
  • Supplement to Report Entitled, “A Laboratory Study of Procedures Evaluated by the Federal Advisory Committee on Detection and Quantitation Approaches and Uses in Clean Water Act Programs” (pdf) (276.13 KB, 2011)
    Comparison of the EPA MDL and ML to the FACDQ DL and QL with Respect to Study Measurement Quality Objectives (MQOs)

Clean Water Act Analytical Methods

  • PFAS Methods
  • Methods Update Rules
  • Approved Chemical Methods
    • Inorganic Non‑Metals
    • Metals
    • Organic
  • Approved Microbiological Methods
    • Wastewater & Sewage Sludge
    • Ambient Water
  • Approved WET Methods
    • Acute
    • Chronic - Freshwater
    • Chronic - Marine/Estuarine
  • 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 about CWA Analytical Methods
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on January 2, 2025
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