What this tracks
This dataset lists certified backflow prevention device testers in Missouri who are available for hire to inspect and maintain backflow prevention systems.
Why it matters to you
If you own a business or property in Missouri with an irrigation system, commercial kitchen, or other plumbing that requires backflow prevention devices, this data helps you find licensed professionals to test your devices. Annual backflow testing is legally required for many properties — using an uncertified tester could result in fines or water service interruptions. The list tells you whether a tester near you is currently certified and when their certification expires.
How to read this data
first_name + last_name — The tester’s full name (e.g., Jake Gaal).
forhire — Whether the tester is currently available for work (sample value: True).
expr1012 — The tester’s phone number (sample: 314-241-8023).
expr1008 — The tester’s business address (sample: 1544 South 3rd Street, St. Louis, MO 63104).
Where this leaves you
This dataset doesn’t let you look anything up by your address, but it’s still a window into how the state operates. Read it to understand the scope of the program and what the official records contain; the city or state’s own interactive map (linked on this page) shows the locations involved.