AQUARION-EAST DERBY
Connecticut - Community Water System - PWSID: CT0378011
System Information
| PWSID | CT0378011 |
| System Name | AQUARION-EAST DERBY |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 29, 1992 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | SHELTON |
| ZIP Code | 06484 |
| Address | 505 Huntington St. |
| Organization | ULRICH, ROBERT J. |
| Phone | 203-926-4320 |
Population & Service
| Population Served | 1,101 |
| Service Connections | 494 |
Drinking Water Violations (32)
This water system has 32 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2018 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2018 | - | |
| Dec 30, 2014 | - | MR | No | No | - | TT | - | Resolved | Jun 2, 2017 | - | |
| Dec 30, 2014 | - | MR | No | No | - | TT | - | Resolved | Jun 2, 2017 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2014 | - | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2014 | - | |
| Dec 13, 2013 | - | Other | No | No | - | - | - | Resolved | Sep 3, 2014 | - | |
| Sep 11, 2013 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2012 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2012 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2012 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2012 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2012 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2012 | - | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2012 | - | |
| Jan 10, 2007 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2007 | - | |
| Jan 10, 2007 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2007 | - | |
| Jan 10, 2007 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2007 | - | |
| Jan 10, 2007 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2007 | - | |
| Aug 10, 2005 | - | Other | No | No | - | - | - | Resolved | Nov 22, 2005 | - | |
| Aug 10, 2005 | - | Other | No | No | - | - | - | Resolved | Nov 22, 2005 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Nov 22, 2005 | - | |
| Jul 1, 2005 | - | Other | No | No | - | - | - | Resolved | Nov 22, 2005 | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.