(a) 
All backflow prevention assemblies shall be tested upon installation by a recognized backflow prevention assembly tester and certified to be operating within specifications. Backflow prevention assemblies which are installed to provide protection against health hazards must also be tested and certified to be operating within specifications at least annually by a recognized backflow prevention assembly tester. A test report must be completed by a recognized backflow prevention assembly tester for each assembly tested. The signed and dated original form must be submitted to the city within five (5) working days of the test.
(b) 
Assemblies shall be repaired, overhauled or replaced at the expense of the customer whenever said assemblies are found to be defective. Original forms of such tests, repairs and overhauls shall be kept and submitted to the city within five (5) working days of the test, repair or overhaul of each backflow prevention assembly.
(c) 
No backflow prevention assembly or device shall be removed from use, relocated, or other assembly or device substituted without the approval of the city. Whenever the existing assembly is moved from the present location or cannot be repaired, the backflow prevention assembly shall be replaced with a backflow prevention assembly or device that complies with this division, the American Water Works Association Manual M14, current edition, the University of Southern California Manual of Cross-Connection Control, current edition, or the current plumbing code of the city, whichever is more stringent.
(d) 
All backflow prevention assemblies shall be installed in accordance with the manufacturer's instructions, the American Water Works Association Manual M14 or the University of Southern California Manual of Cross-Connection Control.
(e) 
Test gauges used for backflow prevention assemblies testing shall be calibrated at least annually in accordance with the University of Southern California's Manual of Cross-Connection Control or the American Water Works Association's Recommended Practice for Backflow Prevention and Cross-Connection Control Manual M14. The original calibration form must be submitted to the city within five (5) working days after calibration.
(f) 
A recognized backflow prevention assembly tester must hold a current endorsement from the state commission on environmental quality ("commission").
(Ordinance 145, sec. 5.131, adopted 12/20/2021)
(a) 
A customer service inspection shall be completed prior to providing continued water service to all new construction, on any existing service when the water purveyor has reason to believe that cross-connections or other contamination hazards exist, or after any material improvement, correction, or addition to the private water distribution facilities.
(b) 
Only individuals with the following credentials shall be recognized as capable of conducting a customer service inspection:
(1) 
Plumbing inspectors and water supply protection specialists that have been licensed by the state board of plumbing examiners;
(2) 
Customer service inspectors who have completed a commission approved course, passed an examination administered by the commission or its designated agent and hold current certification or endorsement as a customer service inspector;
(3) 
Master plumbers, as defined in this article, may conduct the customer service inspection and certification on residential buildings.
(c) 
The customer service inspection must certify that:
(1) 
No direct connection between the public drinking water supply and a potential source of contamination is permitted. Potential sources of contamination shall be isolated from the public water system by an air gap or an appropriate backflow prevention device.
(2) 
No cross-connection between the public drinking water supply and a private water system is permitted. These potential threats to the public drinking water supply shall be eliminated at the service connection by the installation of an air gap or a reduced pressure zone backflow prevention device.
(3) 
No connection which allows water to be returned to the public drinking water supply is permitted.
(4) 
No pipe or pipe fitting which contains more than eight (8.0) percent lead may be used for the installation or repair of plumbing at any connection which provides water for human use.
(5) 
No solder or flux which contains more than two-tenths (0.2) percent lead can be used for the installation or repair of plumbing at any connection which provides water for human use. A minimum of one lead test shall be performed for each inspection.
(Ordinance 145, sec. 5.132, adopted 12/20/2021)