TALCOTT MOUNTAIN SCIENCE CENTER #1
Connecticut - Non-Transient Non-Community - PWSID: CT0040442
System Information
| PWSID | CT0040442 |
| System Name | TALCOTT MOUNTAIN SCIENCE CENTER #1 |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Feb 28, 1980 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | AVON |
| ZIP Code | 06001 |
| Address | 324 Montevideo Road |
| Organization | CONLIN, SEAN |
| Phone | 860-677-8571 |
Population & Service
| Population Served | 59 |
| Service Connections | 4 |
Drinking Water Violations (199)
This water system has 199 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Apr 21, 2012 | - | Other | No | No | - | - | - | Resolved | Aug 6, 2021 | - | |
| Apr 21, 2012 | - | Other | No | No | - | - | - | Resolved | Aug 6, 2021 | - | |
| Nov 3, 2011 | - | MR | No | Yes | - | - | - | Resolved | Sep 30, 2013 | - | |
| Nov 3, 2011 | - | MR | No | Yes | - | - | - | Resolved | Sep 30, 2013 | - | |
| Nov 3, 2011 | - | MR | No | Yes | - | - | - | Resolved | Sep 30, 2013 | - | |
| Nov 3, 2011 | - | MR | No | Yes | - | - | - | Resolved | Sep 30, 2013 | - | |
| Nov 1, 2011 | Nov 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2011 | - | |
| Nov 1, 2011 | Nov 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2011 | - | |
| Nov 1, 2011 | Nov 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2011 | - | |
| Nov 1, 2011 | Nov 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2011 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| Sep 20, 2011 | - | MR | No | Yes | - | - | - | Resolved | Sep 30, 2013 | - | |
| Sep 20, 2011 | - | MR | No | Yes | - | - | - | Resolved | Sep 30, 2013 | - | |
| Sep 20, 2011 | - | MR | No | Yes | - | - | - | Resolved | Sep 30, 2013 | - | |
| Sep 20, 2011 | - | MR | No | Yes | - | - | - | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2010 | Nov 12, 2010 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Nov 12, 2010 | - | |
| Jul 1, 2010 | Nov 12, 2010 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Nov 12, 2010 | - | |
| Feb 28, 2010 | - | Other | No | No | - | - | - | Resolved | Aug 6, 2021 | - | |
| Feb 28, 2010 | - | Other | No | No | - | - | - | Resolved | Aug 6, 2021 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Sep 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Jun 30, 2009 | - | |
| Apr 1, 2009 | Jun 30, 2009 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Jun 30, 2009 | - |
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.