AQUARION-INTERLAKEN
Connecticut - Community Water System - PWSID: CT0911061
System Information
| PWSID | CT0911061 |
| System Name | AQUARION-INTERLAKEN |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Apr 3, 1979 |
| 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 | 64 |
| Service Connections | 18 |
Drinking Water Violations (347)
This water system has 347 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2022 | Jan 31, 2022 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2022 | - | |
| Jan 1, 2022 | Jan 31, 2022 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2022 | - | |
| Jan 1, 2022 | Jan 31, 2022 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2022 | - | |
| Jan 1, 2022 | Jan 31, 2022 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2022 | - | |
| Dec 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2019 | - | |
| Dec 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2019 | - | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | - | - | - | Archived | Jul 31, 2019 | - | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | - | - | - | Archived | Jul 31, 2019 | - | |
| Jul 1, 2019 | Jul 31, 2019 | MR | No | Yes | - | - | - | Archived | Jul 31, 2019 | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Resolved | Oct 26, 2018 | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Resolved | Oct 26, 2018 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2017 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2017 | - | |
| Dec 10, 2016 | - | RPT | No | No | - | - | - | Resolved | Apr 21, 2017 | - | |
| Dec 10, 2016 | - | RPT | No | No | - | - | - | Resolved | Apr 21, 2017 | - | |
| Dec 10, 2016 | - | RPT | No | No | - | - | - | Resolved | Apr 21, 2017 | - | |
| Dec 10, 2016 | - | RPT | No | No | - | - | - | Resolved | Apr 21, 2017 | - | |
| Oct 10, 2016 | - | RPT | No | No | - | - | - | Resolved | Dec 1, 2016 | - | |
| Oct 10, 2016 | - | RPT | No | No | - | - | - | Resolved | Dec 1, 2016 | - | |
| Oct 10, 2016 | - | RPT | No | No | - | - | - | Resolved | Dec 1, 2016 | - | |
| Oct 10, 2016 | - | RPT | No | No | - | - | - | Resolved | Dec 1, 2016 | - | |
| Oct 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Sep 12, 2017 | - | |
| Oct 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Sep 12, 2017 | - | |
| Oct 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Sep 12, 2017 | - | |
| Oct 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Sep 12, 2017 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Jul 13, 2016 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Jul 20, 2015 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Jul 20, 2015 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2013 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2013 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Aug 27, 2012 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Aug 27, 2012 | - | |
| Aug 10, 2011 | - | Other | No | No | - | - | - | Resolved | Aug 27, 2011 | - | |
| Aug 10, 2011 | - | Other | No | No | - | - | - | Resolved | Aug 27, 2011 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Aug 27, 2011 | - | |
| Jul 1, 2011 | - | Other | No | No | - | - | - | Resolved | Aug 27, 2011 | - | |
| Oct 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jul 20, 2016 | - | |
| Oct 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jul 20, 2016 | - | |
| Aug 10, 2009 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Aug 10, 2009 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Jul 14, 2008 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Jul 14, 2008 | - | |
| Jan 5, 2007 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2007 | - | |
| Jan 5, 2007 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2007 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2006 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2006 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2006 | - | |
| Nov 1, 2006 | Nov 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2006 | - | |
| Oct 1, 2006 | Oct 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2006 | - | |
| Oct 1, 2006 | Oct 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2006 | - |
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.