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Regulations last checked for updates: Apr 30, 2025
Title 40 - Protection of Environment last revised: Nov 30, 2025
All Titles
Title 40
Chapter I
Part 141
Subpart 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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