Ellenwood is unincorporated and straddles three counties, so backflow rules come from whichever utility serves your address: DeKalb County Watershed Management, Clayton County Water Authority or Henry County Water Authority. DeKalb and Clayton handle backflow very differently, and we don't have Henry's rules on file. Call the number on this page to be connected with a local plumber in Ellenwood.

What happens when you call
The number on this page connects you with an independent plumber who works in Ellenwood. The first thing to share is which county you're in and whose name is on the water bill, because that decides whether you need to book a test at all. Then describe the device, what it protects and whether it's leaking. The plumber can repair or replace it, fix leaks on your side of the meter, or add protection for new irrigation.
What affects the cost
- A test and filing (DeKalb) versus plumbing work around a CCWA-tested device
- Assembly type and size
- Rebuild or replacement after freeze damage
- Access in a meter box or flower bed
- Permit steps, which go to the county your address is in
Three counties, three utilities
Ellenwood runs along I-675 and GA-42 where DeKalb, Clayton and Henry meet, and many of its subdivisions went up between 2000 and 2009. There's no city government, so the county utility for your address applies. Confirm it from your bill.
DeKalb portion. DeKalb County Watershed Management's Backflow Prevention Section requires an assembly on single-family irrigation systems and on commercial and multi-family properties. Each assembly sits on the customer side of the meter, is installed by a plumbing contractor holding a Georgia license and must be tested every year by a GBPAT-certified tester. The section's number is 404-687-4075.
Clayton portion. Clayton County Water Authority runs a backflow prevention program for commercial customers, according to the sources for this area. In other parts of Clayton, CCWA states that it installs devices at customer connections and has its own specialists test them yearly, so ask CCWA before hiring a tester.
Henry portion. Henry County Water Authority serves Henry County, but we don't have its backflow rules on file. Call the authority before scheduling anything.
Permits also follow the county line. In the DeKalb portion, plumbing permits go through DeKalb County's Permits, Plan Review & Inspections Division and its e-Permitting portal. In the Clayton portion, Clayton County's Building Permits office in Jonesboro handles them.
Before the plumber arrives
- Check your bill to confirm DeKalb, Clayton or Henry water
- Ask that utility whether you need a test and who does it
- Find the device and note what its tag says
- Close the irrigation valve if water is spraying
Backflow Testing questions in Ellenwood
How do I find out which utility serves my address?
How often does a backflow assembly need testing here?
Who is allowed to test my backflow assembly?
Do I need a permit to install or move a backflow assembly?
More plumbing services in Ellenwood
Backflow Testing nearby
Helpful guides
Sources
- DeKalb County Watershed Management
- DeKalb County Watershed Management: backflow prevention
- Clayton County Water Authority: who we are
- Clayton County Water Authority: backflow prevention
- Clayton County Water Authority: customer service
- Henry County Water Authority: water quality report
- DeKalb County: permits, plan review and inspections
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