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Title 40

Displaying title 40, up to date as of 7/09/2026. Title 40 was last amended 7/09/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter DWater Programs100 – 149
Part 141National Primary Drinking Water Regulations141.1 – 141.905
Subpart WEnhanced Treatment for Cryptosporidium141.700 – 141.723
General Requirements141.700
§ 141.700General requirements.
Source Water Monitoring Requirements141.701 – 141.707
§ 141.701Source water monitoring.
§ 141.702Sampling schedules.
§ 141.703Sampling locations.
§ 141.704Analytical methods.
§ 141.705Approved laboratories.
§ 141.706Reporting source water monitoring results.
§ 141.707Grandfathering previously collected data.
Disinfection Profiling and Benchmarking Requirements141.708 – 141.709
§ 141.708Requirements when making a significant change in disinfection practice.
§ 141.709Developing the disinfection profile and benchmark.
Treatment Technique Requirements141.710 – 141.714
§ 141.710Bin classification for filtered systems.
§ 141.711Filtered system additional Cryptosporidium treatment requirements.
§ 141.712Unfiltered system Cryptosporidium treatment requirements.
§ 141.713Schedule for compliance with Cryptosporidium treatment requirements.
§ 141.714Requirements for uncovered finished water storage facilities.
Requirements for Microbial Toolbox Components141.715 – 141.720
§ 141.715Microbial toolbox options for meeting Cryptosporidium treatment requirements.
§ 141.716Source toolbox components.
§ 141.717Pre-filtration treatment toolbox components.
§ 141.718Treatment performance toolbox components.
§ 141.719Additional filtration toolbox components.
§ 141.720Inactivation toolbox components.
Reporting and Recordkeeping Requirements141.721 – 141.722
§ 141.721Reporting requirements.
§ 141.722Recordkeeping requirements.
Requirements for Sanitary Surveys Performed by EPA141.723
§ 141.723Requirements to respond to significant deficiencies identified in sanitary surveys performed by EPA.