Backflow testing requirements in Marlborough, 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 Marlborough
Connecticut DPH inventory
Public water systems listing Marlborough
These systems list Marlboroughas 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-Marlborough
PWS ID CT0798013 · groundwater
1,348 population listed
3 service connections
CTWC - Sachem Village Condo
PWS ID CT0792011 · groundwater
166 population listed
59 service connections
Marlborough Health Care Center, Inc
PWS ID CT0791001 · groundwater
165 population listed
1 service connections
CTWC - Marlborough Gardens
PWS ID CT0790031 · groundwater
110 population listed
39 service connections
CTWC - Forest Homes Division
PWS ID CT0790011 · groundwater
100 population listed
44 service connections
Laurel Hill Water Association
PWS ID CT0790041 · groundwater
86 population listed
24 service connections
CTWC - Florence Lord (Mash)
PWS ID CT0791201 · groundwater
30 population listed
24 service connections
5
Non-transient, non-community systems
16
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.