NEW HAVEN, CT · New Haven County
REGIONAL WATER AUTHORITY-ANSONIA Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of March 24, 2016. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in New Haven County, CT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Connecticut’s official records. Always confirm current status with Connecticut before making decisions based on this information.
System facts
- System ID (PWSID)
- CT0020021
- System type
- Community Water System
- Population served
- 29,600
- Service connections
- 8,724
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
REGIONAL WATER AUTHORITY-ANSONIA is among the 23 largest community water systems in Connecticut, formerly serving 29,600 people from surface water.
EPA's federal records list this system as inactive in 2016; the record below is historical.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
BINGAMAN, LARRY L.
203-562-4020
NEW HAVEN, CT 06511