BACKFLOW BASE

Backflow Base / Every state / Ohio / Columbus

Backflow testing software for Columbus, Ohio.

For testing companies working Columbus's 933,263 people: booking, routes, the field test, and the report to the water system.

Water systems based in Columbus

Plus 13 smaller systems based here. Households near Columbus may be served by another system; Backflow Base matches each address to its own. All 1,059 in Ohio →

Water systems: EPA SDWIS, active community systems, 2026-10-19. Population: Census Bureau 2024 estimates.

Testing companies in Columbus

149 companies on the tester lists of 1 water system. The first 25:

From Columbus Division of Water (dated October 16, 2026). Checked October 19, 2026. A list shows who may test, not who is good; ask the water system for its current list.

Other Ohio cities

The software

Contact

hello@backflowbase.com