State Systems Inc.
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Columbia Power and Water Systems: backflow testing rules
Serves Columbia, TN. Every point below comes from Columbia Power and Water Systems's own pages, linked; check your notice for your own deadline.
Who must test
- Yearly testing is required for backflow devices; customers call (931) 388-4833 to discuss fees. Source.
- CPWS calls for an RPPA backflow prevention device on lawn irrigation systems and a double check (DC) device on fire sprinkler systems. Source.
- CPWS requires a Y-strainer on all backflows. Source.
If a test is missed
- CPWS seeks voluntary correction of cross connection hazards, but water service may be discontinued if voluntary action is not obtained within a reasonable time. Source.
Program
- Columbia Power and Water Systems states that state regulations require all customers to protect CPWS from potential cross contamination. Source.
Read October 6, 2026. Program page: cpws.com.
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