(A) Testing of backflow prevention assemblies shall be performed by a certified backflow prevention assembly tester. Such tests shall be conducted upon installation, prior to receiving service, and annually thereafter. A record of all testing and repairs is to be retained by the customer. Copies of the records shall be provided to the county within ten business days after the completion of any testing and/or repair work.
(B) Any time that repairs to backflow prevention assemblies are deemed necessary, whether through annual or required testing, or routine inspection by the consumer or by the county, these repairs shall be completed within a specified time in accordance with the degree of hazard. In no case shall this time period exceed:
(1) Moderate hazard facilities: 15 business days; and
(2) Severe hazard facilities: ten business days.
(C) Submission of falsified test results or material that is incomplete in any manner by a certified tester may result in the tester being removed from the county’s tester list.
(D) Only original manufactured parts may be used to repair an assembly.
(E) All backflow prevention assembly testers shall submit a copy of their tester’s certification to the county prior to testing any backflow assembly(ies) connected to the county’s public water system.
(F) All equipment used to test backflow prevention assemblies with the county’s public water system shall be properly maintained and calibrated annually in accordance to the manufacturer’s guidelines. A copy of the calibration certificate shall be submitted to the county.
(G) Backflow prevention must be located in a place where it is readily accessible for regular testing, maintenance, and inspection. By-pass lines parallel to a backflow prevention assembly shall have an approved backflow prevention assembly installed that is equal to that on the main line.
(1) Reduced pressure zone:
(a) Above-ground installation preferred;
(b) Below-ground vault shall have positive drainage with adequate gravity drainage to atmosphere; and
(c) Twelve-inch minimum clearance with manufacturer’s recommendations.
(2) Double-check valve assembly:
(a) Vertical or horizontal installation acceptable; and
(b) Adequate drainage shall be provided if installed below-ground.
(Ord. passed 1-8-2007)