Mississippi Code Title 41. Public Health § 41-26-5

(a) To establish policies, requirements or standards governing the source, collection, distribution, purification, treatment and storage of water for public water systems as it deems necessary for the provision of safe drinking water;

(b) To adopt, modify, repeal and promulgate, after due notice and hearing and in accordance with the Mississippi Administrative Procedures Law and Section 41-26-6, and where not otherwise prohibited by federal or state law, to make exceptions to and grant exemptions and variances from, and to enforce rules and regulations implementing the powers and duties of the board under this chapter;

(c) To enter into, and to authorize the director to execute contracts, grants and cooperative agreements with, any federal or state agency or subdivision thereof, interstate agency, or any other person in connection with carrying out this chapter; and

(d) To discharge other powers, duties and responsibilities which may be necessary to implement this chapter.

(2)(a) Except as provided in Section 41-26-5(2)(b), regulations adopted under this section shall apply to each public water system in the state.

(b) Regulations shall not apply to a public water system: