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 | Dec 15, 2025 |
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 (262)
This water system has 262 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 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Jan 1, 2025 | Dec 31, 2025 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Unaddressed | — | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2025 | Dec 31, 2025 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Unaddressed | — | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 29, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 20, 2024 | Lead and Copper Rule |
| Sep 29, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 20, 2024 | Lead and Copper Rule |
| Sep 23, 2024 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jun 25, 2025 | Ground Water Rule |
| Aug 10, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 3, 2024 | Consumer Confidence Rule |
| Aug 10, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 3, 2024 | Consumer Confidence Rule |
| Mar 31, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 21, 2024 | Lead and Copper Rule |
| Mar 31, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 21, 2024 | Lead and Copper Rule |
| Aug 10, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2023 | Consumer Confidence Rule |
| Aug 10, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2023 | Consumer Confidence Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2023 | Consumer Confidence Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2023 | Consumer Confidence Rule |
| Apr 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 15, 2022 | Lead and Copper Rule |
| Apr 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 15, 2022 | Lead and Copper Rule |
| Jul 1, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 9, 2025 | Consumer Confidence Rule |
| Jul 1, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 9, 2025 | Consumer Confidence Rule |
| Apr 1, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 1, 2022 | Lead and Copper Rule |
| Apr 1, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 1, 2022 | Lead and Copper Rule |
| Sep 29, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 31, 2021 | Lead and Copper Rule |
| Sep 29, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 31, 2021 | Lead and Copper Rule |
| Aug 10, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2022 | Consumer Confidence Rule |
| Aug 10, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2022 | Consumer Confidence Rule |
| Apr 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 31, 2021 | Lead and Copper Rule |
| Apr 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 31, 2021 | Lead and Copper Rule |
| Jan 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 23, 2021 | Lead and Copper Rule |
| Jan 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 23, 2021 | Lead and Copper Rule |
| Sep 29, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 31, 2020 | Lead and Copper Rule |
| Sep 29, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 31, 2020 | Lead and Copper Rule |
| Sep 20, 2020 | — | Public Notice | Other | No | No | — | — | — | Resolved | Aug 29, 2022 | Public Notice Rule and Revised PN Rule |
| Sep 20, 2020 | — | Public Notice | Other | No | No | — | — | — | Resolved | Aug 29, 2022 | Public Notice Rule and Revised PN Rule |
| Sep 20, 2020 | — | Public Notice | Other | No | No | — | — | — | Unaddressed | — | Public Notice Rule and Revised PN Rule |
| Aug 10, 2020 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2021 | Consumer Confidence Rule |
| Aug 10, 2020 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2021 | Consumer Confidence Rule |
| Jan 1, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2020 | Lead and Copper Rule |
| Jan 1, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2020 | Lead and Copper Rule |
| Jan 1, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2020 | Lead and Copper Rule |
| Jan 1, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 2020 | Lead and Copper Rule |
| Nov 1, 2019 | Nov 30, 2019 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Nov 30, 2019 | Revised Total Coliform Rule |
| Nov 1, 2019 | Nov 30, 2019 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Nov 30, 2019 | Revised Total Coliform Rule |
| Nov 1, 2019 | Nov 30, 2019 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Nov 30, 2019 | Revised Total Coliform Rule |
| Nov 1, 2019 | Nov 30, 2019 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Nov 30, 2019 | Revised Total Coliform Rule |
| Oct 1, 2019 | Dec 31, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2019 | Dec 31, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Aug 10, 2019 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 23, 2020 | Consumer Confidence Rule |
| Aug 10, 2019 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jan 23, 2020 | Consumer Confidence Rule |
| Aug 1, 2019 | Jul 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2019 | Jul 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jul 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts 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.