Section 144-226-9 - RESPONSIBILITYA. It shall be the responsibility of the supplier and owner to ensure that no unprotected cross-connection is present. If the supplier has reasonably ordered an owner to protect its water supply from a potential or actual cross-connection and the owner does not do so, the supplier is required to discontinue service to the owner within a period of time specified in the water supplier's Cross- Connection Control Program. Notice shall be given to the Department and to the Maine Public Utilities Commission.B. The owner shall be responsible for ensuring the proper operation and maintenance of a backflow preventer and the periodic regular testing of the device as required by the Maine State Internal Plumbing Code or by the public water supplier.C. All owners maintaining cross-connections between their private system and the supplier's water system shall eliminate and disconnect such cross-connections unless deemed necessary by the water supplier, and protected by a backflow preventer approved by the supplier and approved for the degree of hazard associated with the cross-connection, according to the Maine State Internal Plumbing Code. Such disconnection shall occur within six months of the effective date of the cross-connection control program.D. It shall be the responsibility of the owner to inform the supplier of any new, existing, proposed, or modified cross-connection.E. It shall be the responsibility of the owner to provide access during normal working hours to the premises for any representative of the supplier or to any representative of the Department or any other state or federal agency authorized to do so for the expressed purpose of inspecting for possible cross-connections or gaining information in the preparation of an approval. This shall include providing copies of any plans, drawings, reports or specifications relating to the water system or proposed cross-connection control devices.F. It shall be the responsibility of the owner to comply with all provisions of any cross connection approval and the supplier's Cross-Connection Control Program.10- 144 C.M.R. ch. 226, § 9