Water supply: systems; switching from private well to public system; prohibit locals from requiring of adult foster care facilities. Amends 1976 PA 399 (MCL 325.1001 - 325.1023) by adding sec. 15a.

This bill prohibits local governments from forcing small adult foster care facilities to switch from their existing private wells to public water systems. It specifically protects facilities that currently have wells providing enough water and meet all safety standards for contaminants. The law applies only to adult foster care homes caring for 50 or fewer residents, ensuring they can maintain their current water supply if it is safe and sufficient. By adding this provision to Michigan's Safe Drinking Water Act, the legislation prevents municipalities from mandating a change in water sources for these specific types of care facilities.