In Lake Elsinore, Elsinore Valley Municipal Water District requires a backflow device right after the meter on new commercial, industrial and landscape services, owned and maintained by the property owner and tested initially and every year by a County of Riverside certified tester. A failed device must be repaired and retested within 15 days. Call the number on this page to be connected with a local plumber in Lake Elsinore.

Which Lake Elsinore properties need a device?
EVMWD's cross-connection program requires a backflow device immediately after the meter on new commercial, industrial and landscape services. That covers shops along Grand Avenue and Railroad Canyon Road, industrial sites and the shared landscape meters common in planned communities such as Tuscany Hills, Summerly and Alberhill. EVMWD, which provides water, wastewater and reclaimed water service to the city, is the authority on whether an older service also needs one. Its Water Protection Department answers questions at (951) 625-3404.
Who tests it, and how fast must a failure be fixed?
Devices are owned and maintained by the property owner and must be tested when installed and every year after, by a tester certified through the County of Riverside Department of Environmental Health. If a device fails, EVMWD gives 15 days to repair it and retest. That is a short window, so line up the repair visit the same week. Most failures are worn rubber, a weak spring or debris in a check; cracked bodies and outdated models get replaced.
Local water can speed up wear. EVMWD's 2025 report lists the Elsinore groundwater blend at an average of 338 ppm hardness, much harder than its imported sources, so mineral buildup on check seats is common in areas fed by local wells. EVMWD disinfects with chlorine.
Where does EVMWD's responsibility end?
EVMWD maintains the service from the main in the street through the contents of the meter box. Everything on the property from the meter box on is the owner's, including the backflow device that sits just past the meter. If a device or the pipe beside it is leaking, it's a private repair. Installing, altering or replacing plumbing needs a permit from the City of Lake Elsinore Building & Safety Division on South Main Street, so ask the plumber whether your job counts as new work.
One local note
Lake Elsinore grew from a lakeside resort into a suburban city, and the older blocks around Country Club Heights sit near newer hillside tracts. Mixed ages mean mixed equipment, so have the tester confirm the device is an approved model before rebuilding it.
Backflow Testing questions in Lake Elsinore
How often does a backflow assembly have to be tested here?
What happens if my assembly fails its test?
Who owns and pays for the backflow device?
Why does a lawn sprinkler system need backflow protection?
More plumbing services in Lake Elsinore
Backflow Testing nearby
Helpful guides
Sources
Last updated: