- (a) A connection between a drinking water supply system and any part of a wastewater treatment facility or collection system must be made through an air gap or a reduced-pressure backflow assembly (RPBA) in accordance with American Water Works Association (AWWA) Standard C511-97 or AWWA Manual M14.
- (b) Each RPBA must be tested and passed annually by a commission licensed backflow prevention assembly tester. If an RPBA fails an annual test, it must be repaired or replaced, and then retested by a commission licensed backflow prevention assembly tester.
- (c) RPBA test results and maintenance records must be retained at the wastewater treatment facility for at least three years.
- (d) Vacuum breakers are required on all potable water spigots.
Source Note:The provisions of this §217.330 adopted to be effective August 28, 2008, 33 TexReg 6843; amended to be effective December 4, 2015, 40 TexReg 8254.