U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 40Chapter IPart 141Subpart W - Subpart W—Enhanced Treatment for Cryptosporidium

GENERAL REQUIREMENTS
§ 141.700 - General requirements.

SOURCE WATER MONITORING REQUIREMENTS
§ 141.701 - Source water monitoring.
§ 141.702 - Sampling schedules.
§ 141.703 - Sampling locations.
§ 141.704 - Analytical methods.
§ 141.705 - Approved laboratories.
§ 141.706 - Reporting source water monitoring results.
§ 141.707 - Grandfathering previously collected data.

DISINFECTION PROFILING AND BENCHMARKING REQUIREMENTS
§ 141.708 - Requirements when making a significant change in disinfection practice.
§ 141.709 - Developing the disinfection profile and benchmark.

TREATMENT TECHNIQUE REQUIREMENTS
§ 141.710 - Bin classification for filtered systems.
§ 141.711 - Filtered system additional Cryptosporidium treatment requirements.
§ 141.712 - Unfiltered system Cryptosporidium treatment requirements.
§ 141.713 - Schedule for compliance with Cryptosporidium treatment requirements.
§ 141.714 - Requirements for uncovered finished water storage facilities.

REQUIREMENTS FOR MICROBIAL TOOLBOX COMPONENTS
§ 141.715 - Microbial toolbox options for meeting Cryptosporidium treatment requirements.
§ 141.716 - Source toolbox components.
§ 141.717 - Pre-filtration treatment toolbox components.
§ 141.718 - Treatment performance toolbox components.
§ 141.719 - Additional filtration toolbox components.
§ 141.720 - Inactivation toolbox components.

REPORTING AND RECORDKEEPING REQUIREMENTS
§ 141.721 - Reporting requirements.
§ 141.722 - Recordkeeping requirements.

REQUIREMENTS FOR SANITARY SURVEYS PERFORMED BY EPA
§ 141.723 - Requirements to respond to significant deficiencies identified in sanitary surveys performed by EPA.
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