The purpose of this Subsection is:
(A) to protect the public water supply system from contamination or pollution by isolating within the customer’s water system contaminants or pollutants which could backflow through the service connection into the public water supply system;
(B) to promote the elimination or control of existing cross-connections, actual or potential, between the public or consumer’s potable water system and non-potable water systems, plumbing fixtures, and sources or systems containing substances of unknown or questionable safety;
(C) to provide for the maintenance of a continuing program of cross-connection control which will prevent the contamination of pollution of the public and consumer’s potable water systems.
(Prior Code, Art. 16, § 16.3(p)(B))