Backflow Testing in Oklahoma
Backflow Testing across Oklahoma: the 397 ZIP codes and 242 cities we route calls in, and who licenses plumbers in the state.

Free to homeowners in Oklahoma — the contractor pays us for the introduction, you never do.
Who has to test
Our backflow testing coverage in Oklahoma runs to 397 ZIP codes in 242 cities. Where the covered places are many and small, the testing duty is set by whichever water utility serves the connection, so two houses a mile apart can sit under different rules and different annual deadlines.
Source: coverage area as published by our call partner; place and county names from the US Census Bureau.
We route backflow testing calls in 397 ZIP codes across 242 Oklahoma cities, in 43 counties.
What this site is
CrossConnect is a referral service, not a contractor. We connect property owners and managers with independent contractors. Backflow assembly testing is normally restricted to testers holding a specific certification and using calibrated equipment, and the report usually has to reach your water purveyor — ask to see the certification and ask who files the report. We carry out no testing, we certify nobody, we do not set prices, and we never charge callers anything. Nothing here selects a device for any installation or states that any assembly is passing.Checking a credential in Oklahoma
Oklahoma licenses are issued by the Oklahoma Construction Industries Board, which publishes a public search you can use before work begins.
18 of the 43 Oklahoma counties we cover, from the top of the alphabet
- Adair County 4 ZIP codes
Bunch, Stilwell, Watts, Westville - Bryan County 2 ZIP codes
Hendrix, Kemp - Canadian County 4 ZIP codes
Yukon, Mustang, Piedmont - Carter County 8 ZIP codes
Ardmore, Graham, Healdton, Hennepin, Lone Grove, Springer, Tatums, Wilson - Cherokee County 8 ZIP codes
Tahlequah, Cookson, Hulbert, Park Hill, Peggs, Proctor, Welling - Cleveland County 9 ZIP codes
Norman, Lexington, Newalla, Noble - Craig County 4 ZIP codes
Big Cabin, Bluejacket, Vinita, Welch - Creek County 15 ZIP codes
Sapulpa, Bristow, Depew, Drumright, Jennings, Kellyville, Kiefer, Mannford, Milfay, Mounds, Oakhurst, Oilton, Shamrock, Slick - Delaware County 9 ZIP codes
Grove, Colcord, Eucha, Jay, Kansas, Oaks, Rose, Twin Oaks - Garvin County 5 ZIP codes
Elmore City, Lindsay, Maysville, Pauls Valley, Wynnewood - Grady County 1 ZIP code
Tuttle - Haskell County 4 ZIP codes
Keota, Kinta, Stigler, Whitefield - Hughes County 3 ZIP codes
Dustin, Lamar, Wetumka - Johnston County 5 ZIP codes
Mannsville, Milburn, Mill Creek, Ravia, Tishomingo - Kay County 3 ZIP codes
Ponca City, Kaw City - Kingfisher County 1 ZIP code
Okarche - Le Flore County 7 ZIP codes
Cameron, Heavener, Howe, Pocola, Poteau, Shady Point, Spiro - Lincoln County 10 ZIP codes
Agra, Carney, Chandler, Davenport, Meeker, Prague, Sparks, Stroud, Tryon, Wellston
25 more Oklahoma counties are inside the coverage area and are not listed here. If your ZIP code is in Oklahoma, the call reaches a contractor.
What that coverage looks like
The 43 counties in our Oklahoma footprint are served by many separate water suppliers, and each one decides which premises must test and how often. Oklahoma County, with 84 covered ZIP codes, is the largest single block of them; Oklahoma City alone holds 70.
How a backflow testing job goes
A backflow test is a scheduled job that ends in a document. The assembly is isolated, the differential across it is measured, the result is written down, and the report goes to whoever requires it. A failed test means a repair or a rebuild and then a re-test; it does not mean the premises closes that day.
What the call asks about backflow testing
- What kind of premises it is and what is connected to the supply — irrigation, a boiler, a fire line, a commercial kitchen.
- Who is asking for the test: a water supplier, a health department, or a landlord.
- Whether there is an existing assembly with a serial number on it, and when it was last tested.
Every Oklahoma city we route in
29 cities, ordered by the share of buildings with twenty or more units. Containment assemblies are required building by building, and that is where the buildings are. Each page carries that city’s own numbers and the ZIP codes we route there.
- Stillwater 11%
- Tulsa 10%
- Oklahoma City 8%
- Bethany 8%
- Glenpool 8%
- Norman 7%
- Miami 6%
- Purcell 6%
- Owasso 6%
- Muskogee 6%
- Jenks 6%
- Vinita 6%
- Catoosa 5%
- Tahlequah 5%
- Bixby 4%
- Okmulgee 4%
- Broken Arrow 4%
- Edmond 4%
- Mannford 4%
- Bartlesville 4%
- Yukon 3%
- Shawnee 2%
- Pauls Valley 2%
- Seminole 2%
- Coweta 2%
- Bristow 2%
- Claremore 2%
- Afton 2%
- Sapulpa 2%
Before you call
A test is a scheduled job with a report at the end of it, not a repair. What the report has to show, and who it goes to, are on the pages above.

