Final answer:
The Flint water supply is managed by the city, while the treatment of drinking water is overseen by the EPA and state agencies in accordance with the Safe Drinking Water Act. The water treatment process involves several steps to ensure its safety.
Step-by-step explanation:
The Flint water supply is managed by the city of Flint. The treatment of drinking water is overseen by the Environmental Protection Agency (EPA) and state agencies, as mandated by the Safe Drinking Water Act (SDWA) passed by Congress in 1974.
The EPA sets and enforces drinking water standards, while state agencies monitor and regulate public water systems. The water treatment process includes steps such as flocculation, sedimentation, filtration, aeration, disinfection, and the addition of fluoride for tooth decay prevention.