MALLARD COVE CONDOMINIUM ASSN.
Connecticut - Community Water System - PWSID: CT0427011
System Information
| PWSID | CT0427011 |
| System Name | MALLARD COVE CONDOMINIUM ASSN. |
| 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 | Jan 27, 1992 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | EAST HAMPTON |
| ZIP Code | 06424 |
| Address | 61 Mallard Cove |
| Organization | JENSEN, RITA |
| Phone | 860-539-2809 |
Population & Service
| Population Served | 177 |
| Service Connections | 59 |
Drinking Water Violations (267)
This water system has 267 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 | Oct 17, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 30 ug/L | - | Resolved | Sep 30, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Sep 29, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 20, 2024 | - | |
| Sep 29, 2024 | - | MR | No | No | - | TT | - | Resolved | Oct 20, 2024 | - | |
| Sep 23, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jun 25, 2025 | - | |
| Aug 10, 2024 | - | Other | No | No | - | - | - | Resolved | Sep 3, 2024 | - | |
| Aug 10, 2024 | - | Other | No | No | - | - | - | Resolved | Sep 3, 2024 | - | |
| Mar 31, 2024 | - | MR | No | No | - | TT | - | Resolved | May 21, 2024 | - | |
| Mar 31, 2024 | - | MR | No | No | - | TT | - | Resolved | May 21, 2024 | - | |
| Aug 10, 2023 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2023 | - | |
| Aug 10, 2023 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2023 | - | |
| Apr 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Dec 15, 2022 | - | |
| Apr 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Dec 15, 2022 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Sep 9, 2025 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Sep 9, 2025 | - | |
| Apr 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Jan 1, 2022 | - | |
| Apr 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Jan 1, 2022 | - | |
| Sep 29, 2021 | - | MR | No | No | - | TT | - | Resolved | Jul 31, 2021 | - | |
| Sep 29, 2021 | - | MR | No | No | - | TT | - | Resolved | Jul 31, 2021 | - | |
| Aug 10, 2021 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2022 | - | |
| Aug 10, 2021 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Jan 31, 2021 | - | |
| Apr 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Jan 31, 2021 | - | |
| Jan 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Apr 23, 2021 | - | |
| Jan 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Apr 23, 2021 | - | |
| Sep 29, 2020 | - | MR | No | No | - | TT | - | Resolved | Jul 31, 2020 | - | |
| Sep 29, 2020 | - | MR | No | No | - | TT | - | Resolved | Jul 31, 2020 | - | |
| Sep 20, 2020 | - | Other | No | No | - | - | - | Resolved | Aug 29, 2022 | - | |
| Sep 20, 2020 | - | Other | No | No | - | - | - | Resolved | Aug 29, 2022 | - | |
| Sep 20, 2020 | - | Other | No | No | - | - | - | Resolved | Dec 4, 2025 | - | |
| Sep 20, 2020 | - | Other | No | No | - | - | - | Resolved | Dec 4, 2025 | - | |
| Aug 10, 2020 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2021 | - | |
| Aug 10, 2020 | - | Other | No | No | - | - | - | Resolved | Jun 30, 2021 | - | |
| Jan 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2020 | - | |
| Jan 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2020 | - | |
| Jan 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2020 | - | |
| Jan 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2020 | - | |
| Nov 1, 2019 | Nov 30, 2019 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2019 | - | |
| Nov 1, 2019 | Nov 30, 2019 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2019 | - | |
| Nov 1, 2019 | Nov 30, 2019 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2019 | - | |
| Nov 1, 2019 | Nov 30, 2019 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2019 | - | |
| Oct 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Oct 1, 2019 | Dec 31, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Aug 10, 2019 | - | Other | No | No | - | - | - | Resolved | Jan 23, 2020 | - |
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.