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Regulations last checked for updates: May 23, 2025

Title 40 - Protection of Environment last revised: Apr 23, 2028
All TitlesTitle 40Chapter IPart 141Subpart C - Subpart C—Monitoring and Analytical Requirements
  • § 141.21 - Coliform sampling.
  • § 141.22 - Turbidity sampling and analytical requirements.
  • § 141.23 - Inorganic chemical sampling and analytical requirements.
  • § 141.24 - Organic chemicals, sampling and analytical requirements.
  • § 141.25 - Analytical methods for radioactivity.
  • § 141.26 - Monitoring frequency and compliance requirements for radionuclides in community water systems.
  • § 141.27 - Alternate analytical techniques.
  • § 141.28 - Certified laboratories.
  • § 141.29 - Monitoring of consecutive public water systems.
  • Appendix Appendix A - Appendix A to Subpart C of Part 141—Alternative Testing Methods Approved for Analyses Under the Safe Drinking Water Act
authority: 42 U.S.C. 300f,300g,300g,300g,300g,300g,300g,300j,300j,and
source: 40 FR 59570, Dec. 24, 1975, unless otherwise noted.
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