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 | Dec 15, 2025 |
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 (130)
This water system has 130 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, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2025 | Lead and Copper Rule |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Jul 1, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 5, 2022 | Consumer Confidence Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Aug 10, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 8, 2021 | Consumer Confidence Rule |
| Jul 1, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Oct 5, 2021 | Consumer Confidence Rule |
| Aug 10, 2020 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 29, 2021 | Consumer Confidence Rule |
| Aug 10, 2020 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 29, 2021 | Consumer Confidence Rule |
| Jul 1, 2020 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Feb 9, 2021 | Consumer Confidence Rule |
| Jul 1, 2020 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Feb 9, 2021 | Consumer Confidence Rule |
| Dec 30, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 23, 2018 | Lead and Copper Rule |
| Dec 30, 2017 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 23, 2018 | Lead and Copper Rule |
| Oct 1, 2012 | Dec 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2012 | Total Coliform Rule |
| Oct 1, 2012 | Dec 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2012 | Total Coliform Rule |
| Jan 1, 2012 | Dec 31, 2012 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2012 | Nitrate Rule |
| Jan 1, 2012 | Dec 31, 2012 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2012 | Nitrate Rule |
| Jan 1, 2012 | Dec 31, 2012 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2012 | Nitrate Rule |
| Jan 1, 2012 | Dec 31, 2012 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2012 | Nitrate Rule |
| Jul 1, 2008 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 8, 2008 | Consumer Confidence Rule |
| Jul 1, 2008 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 8, 2008 | Consumer Confidence Rule |
| Oct 1, 2006 | Oct 31, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2006 | Total Coliform Rule |
| Oct 1, 2006 | Oct 31, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2006 | Total Coliform Rule |
| Oct 1, 2006 | Oct 31, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2006 | Total Coliform Rule |
| Oct 1, 2006 | Oct 31, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2006 | Total Coliform Rule |
| Sep 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Sep 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Sep 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Sep 1, 2006 | Sep 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2006 | Total Coliform Rule |
| Jun 1, 2006 | Jun 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2006 | Total Coliform Rule |
| Jun 1, 2006 | Jun 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2006 | Total Coliform Rule |
| Jun 1, 2006 | Jun 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2006 | Total Coliform Rule |
| Jun 1, 2006 | Jun 30, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2006 | Total Coliform Rule |
| Jan 10, 2006 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 19, 2006 | Lead and Copper Rule |
| Jan 10, 2006 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 19, 2006 | Lead and Copper Rule |
| Jan 1, 2006 | Jan 31, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2006 | Total Coliform Rule |
| Jan 1, 2006 | Jan 31, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2006 | Total Coliform Rule |
| Jan 1, 2006 | Jan 31, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2006 | Total Coliform Rule |
| Jan 1, 2006 | Jan 31, 2006 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2006 | Total Coliform Rule |
| Oct 1, 2005 | Oct 31, 2005 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2005 | Total Coliform Rule |
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.