Backflow testing requirements in Columbia, 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 Columbia
Connecticut DPH inventory
Public water systems listing Columbia
These systems list Columbiaas 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.
CTWC - Columbia Heights Div.
PWS ID CT0300011 · groundwater
32 population listed
31 service connections
Woodland Terrace
PWS ID CT0300071 · groundwater
27 population listed
15 service connections
Dartmouth Village Elderly Housing
PWS ID CT0309051 · groundwater
25 population listed
24 service connections
8
Non-transient, non-community systems
20
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.