TWIN HILLS WATER DISTRICT
Connecticut - Community Water System - PWSID: CT0320061
System Information
| PWSID | CT0320061 |
| System Name | TWIN HILLS WATER DISTRICT |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 8, 1979 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | BOLTON |
| ZIP Code | 06043-9220 |
| Address | PO Box 9220 |
| Organization | PERETTO, BRYAN |
| Phone | 860-337-6337 |
Population & Service
| Population Served | 156 |
| Service Connections | 39 |
Drinking Water Violations (60)
This water system has 60 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 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Apr 12, 2023 | - | TT | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Apr 12, 2023 | - | TT | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Apr 12, 2023 | - | TT | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Apr 12, 2023 | - | TT | Yes | No | - | - | - | Resolved | Jul 25, 2023 | - | |
| Jul 9, 2022 | - | TT | Yes | No | - | - | - | Resolved | Aug 1, 2022 | - | |
| Jul 9, 2022 | - | TT | Yes | No | - | - | - | Resolved | Aug 1, 2022 | - | |
| Jul 9, 2022 | - | TT | Yes | No | - | - | - | Resolved | Aug 1, 2022 | - | |
| Jul 9, 2022 | - | TT | Yes | No | - | - | - | Resolved | Aug 1, 2022 | - | |
| Jun 15, 2022 | - | MR | No | Yes | - | - | - | Resolved | Mar 10, 2023 | - | |
| Jun 15, 2022 | - | MR | No | Yes | - | - | - | Resolved | Mar 10, 2023 | - | |
| Jun 15, 2022 | - | MR | No | Yes | - | - | - | Resolved | Mar 10, 2023 | - | |
| Nov 5, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 20, 2022 | - | |
| Nov 5, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 20, 2022 | - | |
| Nov 5, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 20, 2022 | - | |
| Nov 5, 2021 | - | TT | Yes | No | - | - | - | Resolved | Apr 20, 2022 | - | |
| Aug 10, 2021 | - | Other | No | No | - | - | - | Resolved | Jul 5, 2022 | - | |
| Aug 10, 2021 | - | Other | No | No | - | - | - | Resolved | Jul 5, 2022 | - | |
| Aug 10, 2018 | - | Other | No | No | - | - | - | Resolved | May 23, 2019 | - | |
| Aug 10, 2018 | - | Other | No | No | - | - | - | Resolved | May 23, 2019 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | May 23, 2019 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | May 23, 2019 | - | |
| Aug 10, 2017 | - | Other | No | No | - | - | - | Resolved | Dec 14, 2021 | - | |
| Aug 10, 2017 | - | Other | No | No | - | - | - | Resolved | Dec 14, 2021 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Dec 14, 2021 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Dec 14, 2021 | - | |
| Aug 10, 2016 | - | Other | No | No | - | - | - | Resolved | Aug 10, 2016 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2013 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jul 3, 2013 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jul 7, 2010 | - | |
| Jul 1, 2010 | - | Other | No | No | - | - | - | Resolved | Jul 7, 2010 | - | |
| Oct 1, 2009 | Oct 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2009 | - | |
| Oct 1, 2009 | Oct 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2009 | - | |
| Oct 1, 2009 | Oct 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2009 | - | |
| Oct 1, 2009 | Oct 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2009 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2007 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2007 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2006 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Jul 24, 2006 | - | |
| May 1, 2003 | May 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2003 | - | |
| May 1, 2003 | May 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2003 | - | |
| May 1, 2003 | May 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2003 | - | |
| May 1, 2003 | May 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2003 | - | |
| May 1, 2003 | May 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2003 | - | |
| May 1, 2003 | May 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2003 | - | |
| Jan 1, 2003 | Mar 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 2003 | - | |
| Jan 1, 2003 | Mar 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 2003 | - | |
| Jan 1, 2003 | Mar 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 2003 | - | |
| Jan 1, 2003 | Mar 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 2003 | - |
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.