Backflow Base / Tester certification / Connecticut
Backflow tester certification in Connecticut.
DPH certifies backflow prevention device testers. You pass a DPH-approved course (NEWWA runs them) and then apply to DPH for the Connecticut certificate.
Last updated .
Who certifies
Connecticut Department of Public Health, Drinking Water Section
The state issues the certificate testers need.
What it takes
- Credential
- CT DPH Backflow Prevention Device Tester certificate.
- Before you start
- Passed DPH-approved course. The application asks for a copy of the NEWWA course certificate and NEWWA certification.
- Training
- DPH-approved course such as the NEWWA Training and Certification of Backflow Prevention Device Inspectors course (2.0 CEUs). NEWWA students from outside CT must attend the Connecticut regulations presentation at an approved CT course.
- Exam
- Written and practical exams as part of the approved course (DPH application form records both scores).
- Fees
- $154 application fee, check or money order to Treasurer, State of Connecticut; not refundable.
Certificates from elsewhere
- AWWA: required to get the state certificate. The DPH application requires NEWWA course and NEWWA certification copies. Apply within 1 year of the course date.
No other state's certificate is named as valid here. Ask the program before you rely on one.
Where to get certified
- New England Water Works Association (NEWWA)Holliston, MA · course and exam · in person. DPH-approved tester courses; 2025 sessions listed in Danbury, Hartford, Groton and Hamden. Register at newwa.org.
Listed for convenience, not endorsed. Check that a course is on the state's approved list before you pay.
Free exam prep → Study questions, practice exams, device tests.
Test procedures for every assembly → The steps we recommend for the field exam.
Filing test reports
Tests are reported to the water system, which files an annual cross connection survey report with DPH by March 1 for the prior calendar year. Test report format is set by each water system.
Largest water systems
Regional Water Authority
- Contact
- 203-562-4020
- Reports
- No tester filing instructions found. Main number lists a PipeSafe option; unclear if it covers backflow.
Metropolitan District Commission (MDC)
- Contact
- 860-278-7850
- Reports
- Governed by MDC Ordinance W-12 and Manual of Practice W12m; submission steps not on the page.
- Testers
- See Ordinance W-12 and Manual W12m linked from the MDC cross connections page.
Aquarion Water (Eastern Fairfield County)
- Contact
- 800-732-9678
- Reports
- The Aquarion cross-connection page fetched showed Massachusetts rules; no CT tester filing steps found.
Aquarion Water (Stamford)
- Contact
- 800-732-9678
- Reports
- The Aquarion cross-connection page fetched showed Massachusetts rules; no CT tester filing steps found.
Waterbury Water Department
Sources
- CT DPH Backflow Prevention and Cross Connection Control
- CT DPH Backflow Tester Initial Application (DWBT)
- MDC Cross Connections
- NEWWA program information
Checked 2026-10-19 against each state's own program pages and rules. Rules change; confirm with the program before you book an exam or a test. Spot something out of date? hello@backflowbase.com.
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.