Skip to code content (skip section selection)
(a) Backflow Preventers for Containment shall be installed as close as practical to but in any case within 25 feet of the downstream side of the water meter or Point of Connection to the Public Water System.
(b) Backflow Preventers shall be installed that are commensurate with the risk that exists at each Property, in accordance with criteria set forth in regulations adopted by the General Manager.
(c) All Approved Backflow Prevention Assemblies, prior to installation, shall have passed laboratory and field evaluation tests performed by a recognized testing organization acceptable to the General Manager that has demonstrated competency to perform such tests. Approved Backflow Prevention Assemblies that have been modified or installed in a manner that differs from the configuration tested and approved are prohibited.
(d) Approved Backflow Prevention Assemblies, as installed, shall be field tested in accordance with this Article 12A to determine that they are functioning properly before being placed into service.
(e) No person shall use water from or connect any apparatus to a City fire hydrant without first obtaining a permit and a water meter from the San Francisco Public Utilities Commission. All portable water meters intended for use with hydrants shall include backflow prevention in accordance with the regulations adopted by the General Manager.
(f) The Property Ovmer shall be responsible for field testing all Approved Backflow Prevention Assemblies upon installation, relocation, or repair, and annually after each such action, or more frequently if determined necessary by the General Manager to eliminate an On-site Hazard.
(g) Backflow prevention assembly tests and inspections required under this Article 12A shall be performed by an Authorized Backflow Prevention Assembly Tester at the sole expense of the Property Owner.
(1) When an Approved Backflow Prevention Assembly is inspected and has passed the testing procedure, the Authorized Backflow Prevention Assembly Tester shall:
(A) Immediately affix a Backflow Tag to the assembly.
(B) Submit certification documentation to the General Manager and the Property Owner within five business days of the completion of each inspection and test.
(2) Approved Backflow Prevention Assemblies that fail to pass inspection and testing shall be repaired, overhauled, or replaced, and immediately retested at the sole expense of the Property Owner.
(a) The Property Owner shall be responsible for testing all Dual-plumbed systems for Cross-connections upon installation and periodically thereafter as required in accordance with regulations adopted by the General Manager.
(b) Cross-connection Tests and inspections shall be performed by an Authorized Cross-connection Control Specialist at the sole expense of the Property Owner.
(c) The Authorized Cross-connection Control Specialist shall submit a written report documenting the results of the inspection and testing to the General Manager and the Property Owner within five business days of each inspection or test.
(d) If a Cross-connection is identified during inspection and testing, the Property Owner or Authorized Cross-connection Control Specialist shall:
(1) Immediately notify the General Manager of the existence of the Cross-connection.
(2) Immediately shut off the Auxiliary Water supply at the source.
(3) Follow the procedure for eliminating the Cross-connection, retesting, and reestablishing water service in accordance with regulations adopted by the General Manager.
(e) If a Cross-connection is discovered, the General Manager may shut off the potable water supply to the Property at the water meter or other connection to the Public Water System.
(f) Recordkeeping. Property Owners shall maintain Cross-connection testing and inspection records for a period of three years, in accordance with regulations adopted by the General Manager. The records shall be made available to the General Manager at the request of the General Manager.