CORNWALL WATER COMPANY
Connecticut — Community Water System — PWSID: CT0311011
System Information
| PWSID | CT0311011 |
| System Name | CORNWALL WATER COMPANY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Apr 3, 1979 |
| Last Reported | Dec 15, 2025 |
Location & Contact
| State | Connecticut |
| City | CORNWALL BRIDGE |
| ZIP Code | 06754-0075 |
| Address | River Road South |
| Organization | STONE, RICHARD |
| Phone | 860-480-4284 |
Population & Service
| Population Served | 48 |
| Service Connections | 11 |
Drinking Water Violations (632)
This water system has 632 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 | — | — | — | Archived | Jun 9, 2025 | Consumer Confidence Rule |
| Jul 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Jul 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Jul 1, 2025 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Archived | Jun 9, 2025 | Consumer Confidence Rule |
| Jul 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Archived | Jun 9, 2025 | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Archived | Jun 9, 2025 | Lead and Copper Rule Revisions |
| Sep 29, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Aug 10, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Archived | Jun 9, 2025 | Consumer Confidence Rule |
| Jul 1, 2024 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Archived | Jun 9, 2025 | Consumer Confidence Rule |
| May 16, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| May 16, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| May 16, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| May 16, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Apr 14, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Mar 31, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Archived | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Archived | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Archived | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Archived | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Archived | Dec 31, 2024 | Nitrate Rule |
| Jan 1, 2024 | Dec 31, 2024 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Archived | Dec 31, 2024 | Nitrate Rule |
| Dec 2, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Dec 2, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Dec 2, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Dec 2, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Jul 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2023 | Lead and Copper Rule |
| Jul 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2023 | Lead and Copper Rule |
| Jul 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2023 | Lead and Copper Rule |
| Jul 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2023 | Lead and Copper Rule |
| Apr 8, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Apr 8, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Jan 20, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Jan 20, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Apr 23, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Apr 23, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Apr 23, 2022 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Jun 9, 2025 | Lead and Copper Rule |
| Apr 1, 2022 | Apr 30, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Apr 30, 2022 | Revised Total Coliform Rule |
| Apr 1, 2022 | Apr 30, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Apr 30, 2022 | Revised Total Coliform Rule |
| Apr 1, 2022 | Apr 30, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Apr 30, 2022 | Revised Total Coliform Rule |
| Apr 1, 2022 | Apr 30, 2022 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Apr 30, 2022 | Revised Total Coliform Rule |
| Mar 23, 2022 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Mar 23, 2022 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jun 26, 2024 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 27, 2021 | Lead and Copper 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.