The purpose of these regulations is (A) to protect the public water supply against actual or potential cross-connection by isolating within the premises contamination or pollution that may occur because of some undiscovered or unauthorized cross-connection on the premises; (B) to eliminate existing connections between drinking water systems and other sources of water that are not approved as safe and potable for human consumption; (C) to eliminate cross-connections between drinking water systems and other sources of water or process water used for any purpose whatsoever which jeopardize the safety of the drinking water supply; and (D) to prevent the making of cross-connections in the future.

These regulations are in accordance with the State of California Administrative Code, Title 17 – Public Health, entitled “Regulations Relating to Cross-Connections.”