Moncure homes are a mix: some are on TriRiver Water lines that took over Chatham County's system in 2025, and others still use private wells. No cross-connection testing program page was found for that system, so ask TriRiver whether it tracks your device, and protect sprinklers, injectors and any leftover well piping either way. Call the number on this page to be connected with a local plumber in Moncure.

What to expect on the phone
The call puts you in touch with an independent plumber who serves southeastern Chatham County. They'll want to know where your water comes from, whether there's a sprinkler system or chemical injector, and whether the house ever had a well that might still be connected. If an assembly is spraying or leaking, they'll likely ask you to close the irrigation valve until they get there. From there the job might be testing an existing device, rebuilding one, adding protection where there is none or separating an old well.
Cost factors
- Test-only visits versus repair, rebuild and retest
- Assembly type and size
- Locating and capping an abandoned well connection
- Insulation or relocation for a device exposed to freezing
- Permits from Chatham County Central Permitting & Inspections, which covers unincorporated Chatham
- Drive time to a rural address
Water and backflow in Moncure
Moncure sits near the Jordan Lake dam and the spot where the Deep and Haw rivers join to form the Cape Fear, along US 1 and Old US Highway 1. Its water depends on the address. Chatham County's utility became part of Sanford's TriRiver Water on July 1, 2025, and roughly 11,000 county customers moved over with new account numbers. Where those lines don't reach, homes use private wells; the county estimated about 15,000 private wells countywide in 2021.
Chatham County also requires a home to connect to county water when a line is available, which it put at within 500 feet for residential property. That rule creates the most common backflow problem here: a house hooked up to public water while the old well stays in place for the garden or lawn. If those two systems share any piping, well water can be pushed into the public supply. They need to be fully separated, with the well serving only its own isolated outdoor line, if it's kept at all.
No TriRiver backflow program details could be confirmed, so if you're a customer with irrigation, call TriRiver and ask whether it requires a device and a test, and who may perform it.
Checklist before the visit
- Confirm whether you get a TriRiver bill or run on a well
- Find the irrigation shutoff and any existing assembly
- Look for old well piping or a second pressure tank
- Write down any injector or chemical feed on outdoor lines
Backflow Testing questions in Moncure
My water provider has never mentioned backflow. Do I still need a device?
Can I keep my old well plumbed in after switching to public water?
Why does a sprinkler system need backflow protection at all?
What's the difference between a double check and a reduced pressure assembly?
More plumbing services in Moncure
Backflow Testing nearby
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