No water service connection to any premises shall be installed or maintained by the water purveyor unless the water supply is protected as required by this chapter and by appropriate state regulations.
Service of water to any premises may be discontinued by the water purveyor if a backflow preventative device required by this chapter is not installed, tested, and maintained; if any defect is found in an installed backflow preventive device; if it is found that a backflow preventive device has been removed or bypassed; or, if unprotected cross-connections exist on the premises; and services will not be restored until such conditions or defects are corrected.
The requirements of Article III, § 143-6G, are nonretroactive to existing service connections. However, placement of backflow prevention devices will be necessary with new or replacement meter installations.