(A) (1) Any backflow prevention device required herein shall be of a model and size approved by the Superintendent. APPROVED BACKFLOW PREVENTION DEVICE shall mean a device that has been manufactured in full conformance with the standards established by the American Water Works Association (AWWA) entitled AWWA C506-69 Standards for Reduced Pressure Principle and Double Check Valve Backflow Prevention Devices and by the American Society of Sanitary Engineers (ASSE) entitled:
(a) No. 1001 Pipe Applied Atmospheric Type Vacuum Breakers - ANSI Approved, 1982 - Revised, 1988;
(b) No. 1011 Hose Connection Vacuum Breakers - ANSI Approved, 1982;
(c) No. 1012 Backflow Prevention/Intermediate Atmospheric Vent, 1978;
(d) No. 1013 Reduced Pressure Principle Backflow Preventer, Revised 1988;
(e) No. 1015 Double Check Backflow Prevention Assembly, Revised 1988;
(f) No. 1019 Wail Hydrants, Freezeless, Automatic Draining, Anti-Backflow Types - ANSI Approved, 1978;
(g) No. 1020 Vacuum Breakers, Anti-Siphon, Pressure Type - ANSI Approved, 1982;
(h) No. 1024 Dual Check Valve Type Backflow Preventers - ANSI Approved, 1984 - Revised 1988;
(i) No. 1032 Dual Check Valve Type Backflow Preventer for Carbonated Beverage Dispensers, 1980;
(j) No. 1035 Laboratory Faucet Vacuum Breakers - ANSI Approved, 1984; and
(k) No. 1048 Double Check Detector Assembly Backflow Preventer, 1989.
(2) Said standards and specifications have been adopted by the Superintendent. Final approval shall be evidenced by a certificate of approval issued by an approved testing laboratory certifying full compliance with said standards and specifications.
(B) The Superintendent shall keep a current list of all certified suppliers and their appropriate list of makes and models of backflow prevention devices which he or she has deemed approved.
(C) The Superintendent may require a strainer of approved type and size to be installed in conjunction with required backflow prevention devices. The installation of strainers shall preclude the fouling of backflow devices due to foreseen and unforeseen circumstances occurring to the water supply system, such as water main repairs, water main breaks, fires, periodic cleaning, and flushing of mains. These occurrences may cause debris such as scale deposits and sand to flush through the mains, causing fouling of backflow devices.
(Ord. 2008-4, passed 8-14-2008)