Backflow testing requirements in Derby, Connecticut
Start with the verified utility guides and state water-system records below. The responsible utility—not the town name alone—sets the property's accepted form, testing schedule, and submission route.
Best available local guidance
Utility guides associated with Derby
Connecticut DPH inventory
Public water systems listing Derby
These systems list Derbyas their principal municipality in the active DPH inventory. This is a discovery aid, not proof that a particular address is inside a system's service boundary.
Aquarion-East Derby
PWS ID CT0378011 · SWP
1,101 population listed
491 service connections
0
Non-transient, non-community systems
1
Transient non-community systems
How to verify an address
Use the source trail before relying on a filing route
- 1
Identify the water provider from the property’s water bill, DPH inventory, or the state Exclusive Service Area map.
- 2
Open the utility guide when available and check its review date, testing cadence, accepted form, and submission method.
- 3
Confirm property-specific requirements with the utility before the appointment; hazards, device type, and deadlines can differ.
For testing companies
Keep every customer, assembly, and due date in one place.
Import your existing customer book and keep utility guidance attached to the work.