DEQ - What is a Noncommunity Water System (NCWS)

Michigan Department of Environmental Quality

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What is a Noncommunity Water System (NCWS)

A Noncommunity Water Supply (otherwise known as a "Type II") is a water system that provides water for drinking or household purposes to 25 or more persons at least 60 days per year or has 15 or more service connections. A few examples are schools, restaurants, churches, campgrounds, industries and highway rest stops with their own water supply.

In contrast, a Community Water Supply (or Type I) is a water system that provides year-round service to at least 15 living units or 25 residents. Examples include cities, villages, apartment complexes and mobile home parks.

NonCommunity Public Water Supply Owner's Guide


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•	Guide to Local Health Department Personnel
•	Bottled Water Source Approval
•	Water Hauler Information
•	Waterborne Disease Outbreak Summary
•	Water Supply Violation History
•	Type II Noncommunity Drinking Water Program Area Assignments
•	Annual Fees