PRESTON PLAINS WATER COMPANY
Connecticut - Community Water System - PWSID: CT1140011
System Information
| PWSID | CT1140011 |
| System Name | PRESTON PLAINS WATER COMPANY |
| 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 | Mar 8, 1979 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | MASHANTUCKET |
| ZIP Code | 06338-3060 |
| Address | 2 Matts Path |
| Organization | CHARITY, BRYAN |
| Phone | 860-396-7552 |
Population & Service
| Population Served | 550 |
| Service Connections | 105 |
Drinking Water Violations (122)
This water system has 122 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 10, 2025 | - | Other | No | No | - | - | - | Resolved | Nov 25, 2025 | - | |
| Aug 10, 2025 | - | Other | No | No | - | - | - | Resolved | Nov 25, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Sep 15, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Sep 15, 2025 | - | |
| Dec 30, 2024 | - | MR | No | No | - | TT | - | Resolved | Jan 28, 2025 | - | |
| Dec 30, 2024 | - | MR | No | No | - | TT | - | Resolved | Jan 28, 2025 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Oct 3, 2022 | - | |
| Dec 30, 2021 | - | MR | No | No | - | TT | - | Resolved | Feb 24, 2022 | - | |
| Dec 30, 2021 | - | MR | No | No | - | TT | - | Resolved | Feb 24, 2022 | - | |
| Sep 1, 2021 | Sep 30, 2021 | MCL | Yes | No | - | - | - | Resolved | Sep 30, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Jul 2, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Jul 2, 2021 | - | |
| Dec 30, 2018 | - | MR | No | No | - | TT | - | Resolved | Feb 5, 2019 | - | |
| Oct 10, 2018 | - | RPT | No | No | - | - | - | Resolved | Dec 3, 2018 | - | |
| Oct 10, 2018 | - | RPT | No | No | - | - | - | Resolved | Dec 3, 2018 | - | |
| Oct 10, 2018 | - | RPT | No | No | - | - | - | Resolved | Dec 3, 2018 | - | |
| Oct 10, 2018 | - | RPT | No | No | - | - | - | Resolved | Dec 3, 2018 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2018 | - | |
| Jul 1, 2018 | - | Other | No | No | - | - | - | Resolved | Jul 9, 2018 | - | |
| Jun 1, 2013 | Jun 30, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2013 | - | |
| Jun 1, 2013 | Jun 30, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2013 | - | |
| Jun 1, 2013 | Jun 30, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2013 | - | |
| Jun 1, 2013 | Jun 30, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2013 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 1993 | Dec 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1993 | - | |
| Oct 1, 1993 | Dec 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1993 | - | |
| Oct 1, 1993 | Dec 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1993 | - | |
| Oct 1, 1993 | Dec 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 1993 | - |
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.