A Noncommunity Water Supply 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. Schools, restaurants, motels, campgrounds, and churches with their own well are typical noncommunity water systems. Michigan has 11,000 noncommunity systems serving 1.7 million people. To ensure the quality of water we drink, the Michigan Safe Drinking Water Act (Act 399) was enacted in 1976 enabling the Michigan Department of Environmental Quality (DEQ) to maintain primacy (state authority) over the drinking water program in our state. The DEQ contracts with local health departments to maintain a Type II noncommunity program in each county. Noncommunity Program Staff at DEQ support this local effort through training, technical support, and program evaluation.