Backflow Base / Every state / Illinois
Backflow testing software for Illinois.
Booking, scheduling, the field test, and the report to the water system, for testing companies in Illinois.
Illinois water systems
Illinois has 1,709 active community water systems. Each test report goes to the one that serves the address. The largest:
- Chicago2,721,308 people served
- Aurora183,000 people served
- Joliet160,000 people served
- Naperville156,406 people served
- Il American-Champaign150,000 people served
- Rockford147,051 people served
- Il American-Peoria137,575 people served
- Il American-East St Louis131,368 people served
- Springfield117,444 people served
- Elgin114,797 people served
Water systems: EPA SDWIS, active community systems, 2026-10-19. Population: Census Bureau 2024 estimates.
Cities
- Chicago →2,721,308 people
- Aurora →180,710 people
- Naperville →153,124 people
- Joliet →151,837 people
- Rockford →147,486 people
- Elgin →114,701 people
- Springfield →112,949 people
- Peoria →111,696 people
Testing in Illinois
Who may test is set by the state, the water system, or both. Ask the water system you will test for which certifications it accepts before your first test.
The software
- Bookings from a booking page, your own website, and an AI receptionist on your phone.
- Schedule board and route for each tester.
- Field app that scores every test, even with no signal.
- Test reports sent to the water system that serves each address.
- Card payments to your own Stripe account, and yearly renewals that charge after the test.
- Client portal for HOAs, property managers and contractors.
- $50/month flat: no per-test fee, no cut of payments.
- Every feature →What the app does, part by part.
- Compare →Next to other backflow and field-service software.
- Start free →No card. $50/month or $500/year once you go live, 45 days free.
- Free exam prep →Study questions, practice exams, device tests, a VR wet lab.