The web Browser you are currently using is unsupported, and some features of this site may not work as intended. Please update to a modern browser such as Chrome, Firefox or Edge to experience all features Michigan.gov has to offer.
Community Water Supply
Community Water Supply
The Community Water Supply Program oversees the primary EPA program that sets forth minimum standards for safe drinking water as well as administering the requirements of Michigan's Safe Drinking Water Act. The program's primary function is regulatory oversight of approximately 1,400 community public water supplies in Michigan.
Maintaining a safe and reliable drinking water supply is always essential to protecting public health. This is particularly true when managing a disease outbreak like COVID-19. To that end, water supplies must maintain critical functions and continue to comply with Safe Drinking Water Act requirements. EGLE is committed to assisting with these efforts.COVID 19 Information for Water Operators
Information and Forms
Programs and Activities
Laws and Rules
Manuals, Brochures, and Reports
How to Flush Your Home When Water Services are Restored
If you're having your water service restored, you need to flush your home's water pipes! Moving fresh water through your pipes flushes bacteria and metals from your plumbing.
Backflow Prevention Assembly Testing Certification
The Part 14 Rules were updated in 2015 to improve public health protection through strengthening the State of Michigan’s cross connection requirements. Among the rule revisions is a change in Rule 1405 Backflow preventers; tester qualifications and corrections.
Starting January 1, 2018, backflow assembly testing results on public water systems will only be valid if performed by a tester certified in accordance to ASSE Standard 5110 and listed as such at ASSE. The changes are aimed at improving the quality of testing and standardizing certification and renewal requirements. To acquire the new certification, an individual must have sufficient relevant experience to qualify for the required 40-hour course. Following the course, the individual must pass an exam by demonstrating proficiency in testing. To keep an ASSE 5110 certification active, testers must obtain continuing education and renew their certificate every three years.
What does this mean to community water supplies?
It means that after January 1, 2018, only backflow prevention assembly test forms performed and signed by an ASSE 5110 certified tester may be accepted by public water system personnel. Water system operators are encouraged to communicate these changes to local testers to ensure tester availability. Water purveyors are also reminded that repairs of any backflow preventers still must be completed by a licensed plumber.
EGLE Water Sampling 101 - Thermal Preservation
This video will cover how to properly pack and ship a drinking water sample so that it can meet thermal preservation requirements. A disinfection byproducts sample is demonstrated in this video as an example, but these techniques can be applied to other drinking water samples requiring thermal preservation too. For more helpful tips for meeting compliance with the Safe Drinking Water Act, please visit Michigan.gov/DrinkingWater.