MIDDLEFIELD HOUSING AUTHORITY
Connecticut - Community Water System - PWSID: CT0820031
System Information
| PWSID | CT0820031 |
| System Name | MIDDLEFIELD HOUSING AUTHORITY |
| 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 | Dec 29, 1980 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | ROCKFALL |
| ZIP Code | 06481 |
| Address | 61 CEDAR STREET |
| Organization | SIBLEY, PETER B. |
| Phone | 860-344-9933 |
Population & Service
| Population Served | 62 |
| Service Connections | 31 |
Drinking Water Violations (216)
This water system has 216 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 29, 2025 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Oct 5, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Aug 10, 2021 | - | Other | No | No | - | - | - | Resolved | Oct 8, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Oct 5, 2021 | - | |
| Aug 10, 2020 | - | Other | No | No | - | - | - | Resolved | Apr 29, 2021 | - | |
| Aug 10, 2020 | - | Other | No | No | - | - | - | Resolved | Apr 29, 2021 | - | |
| Jul 1, 2020 | - | Other | No | No | - | - | - | Resolved | Feb 9, 2021 | - | |
| Jul 1, 2020 | - | Other | No | No | - | - | - | Resolved | Feb 9, 2021 | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Resolved | Oct 23, 2018 | - | |
| Dec 30, 2017 | - | MR | No | No | - | TT | - | Resolved | Oct 23, 2018 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Aug 8, 2008 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Aug 8, 2008 | - | |
| 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 | - | |
| 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 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Jun 1, 2006 | Jun 30, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2006 | - | |
| Jan 10, 2006 | - | MR | No | No | - | TT | - | Resolved | Jun 19, 2006 | - | |
| Jan 10, 2006 | - | MR | No | No | - | TT | - | Resolved | Jun 19, 2006 | - | |
| Jan 1, 2006 | Jan 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2006 | - | |
| Jan 1, 2006 | Jan 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2006 | - | |
| Jan 1, 2006 | Jan 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2006 | - | |
| Jan 1, 2006 | Jan 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 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.