§ 56.21 MODERATE DEGREE OF HAZARDOUS USES.

   (A)   Single Family Residence. Services to single family residential units, not otherwise required by this section to have other containment devices, may have a containment device in the form of an approved dual check valve on all such services which meters are applied more than 90 days following the date of adoption of this chapter, said dual check valves or other containment devices as required shall be installed by the owner's representative prior to the installation of the meter by the Town of Murphy. On all such services for which meters have been applied prior to that date, said dual check valve shall be installed by the Town of Murphy, provided that the town reserves the right to charge the owner or occupant of any residence for the cost of said device and its installation. Testable containment devices are required on lawn irrigation water systems and must be tested every year by a contractor that has been approved by the town.

   (B)   Private Water Systems. All private water system connections to the public water supply of the Town of Murphy shall have containment devices in the form of a double check valve backflow prevention device. This shall include water mains installed in accordance with the Town of Murphy Standard Specifications, and with Town of Murphy supervision, but which are not maintained by the Town of Murphy, including but not limited to manufactured home parks, apartments, group housing projects, and other private distribution systems, or similar hazard potential as determined by the Town of Murphy or its authorized representative. Private distribution systems shall be configured so as to provide looped mains, with two or more containment devices on each building water service connection and at dead-end branch mains.

   (C)   All other connections to the public water supply of the Town of Murphy shall have containment devices in the form of a double check valve backflow prevention device. These shall include fire sprinkler systems without booster pump facilities or chemical additives, connections to tanks, lines, and vessels that handle non-toxic substances, lawn sprinkler systems without chemical injection or booster pumps, most commercial establishments, automatic service stations, bakeries, and beauty shops with no health hazard.

(Ord. passed 12-3-2007)

§ 56.22 CHANGE IN NATURE OF USE.

   The Town of Murphy shall be notified by the consumer if the nature of use of the property changes so as to change the hazard classification of that property, as set forth in §§ 56.02, 56.20 and 56.21 of this chapter.

(Ord. passed 12-3-2007)

INSTALLATION OF CONTAINMENT DEVICES

§ 56.35 LOCATION.

   For both new installations and existing installations requiring modification or additional devices, containment devices shall be located off street right-of-way on the water main side of any plumbing connections. When installed in a building, the device shall be located on the service line immediately after its entrance into the building. Each containment and confinement device shall be installed in a location that is physically accessible for inspection and testing as determined by the Cross Connection Coordinator. Containment devices, which have been buried in the ground, do not satisfy the provisions of this code. Each reduced pressure principle zone device shall be installed such that flooding of the device is unlikely as determined by the Cross Connection Coordinator.

(Ord. passed 12-3-2007)

§ 56.36 BYPASS LINES.

   Bypass lines parallel to a backflow prevention assembly shall have an approved backflow prevention assembly installed that is equal to that on the main line.

(Ord. passed 12-3-2007)

§ 56.37 PREVIOUS CONSTRUCTION.

   (A)   In those cases in which containment and/or confinement devices have been previously installed by prior owners, the town or other parties, the responsibility for maintenance, testing, and replacement as applicable shall be with the consumer.

   (B)   Upon notification to the consumer as to the degree of hazard in accordance with § 56.39, the Cross Connection Coordinator may require that the consumer provide engineering drawings sealed by a professional engineer of existing conditions, including required modifications if needed, and/or required installation of devices within the premises, which provide complete internal protection against cross-connection as approved by the Cross Connection Coordinator. Any such connection shall be considered another connection for determining the type of containment device required. The town will review the drawings to affirm compliance with this section.

   (C)   The cost of said means of containment, and any other plumbing modifications necessary and convenient thereto, and the testing and maintenance thereof is to be paid for by the consumer.

(Ord. passed 12-3-2007)