This chapter establishes a system designed to help ensure public health; to allow the State, municipalities and public water systems to identify significant public water supplies and strive for a higher degree of protection around source water areas or areas that are used as public drinking water supplies; to allow the State, municipalities and water systems to pursue watershed or wellhead protection activities around significant public water supplies; and to improve testing for and treatment of contaminants or properties in residential private drinking water wells. [PL 2017, c. 230, §1 (AMD).]