Maine CDC Drinking Water Program

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Program INFORMATION Rules and Policies Download Documents Licensing DWP Services Financial Services Resources, Guidance and Water Information	Home > Rules and Policies > TCR Total Coliform Rule (TCR) Frequently asked questions about bacteria and boil water orders. How often does a water system have to test for bacteria? Total Coliform Rule Quick Reference Guide external link to US Environmental Protection Agency Giardia and Cryptosporidium Information

Total Coliform Rule (TCR)