SOUTH NORWALK ELECTRIC & WATER
Connecticut — Community Water System — PWSID: CT1030021
System Information
| PWSID | CT1030021 |
| System Name | SOUTH NORWALK ELECTRIC & WATER |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 8, 1979 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | WILTON |
| ZIP Code | 06897 |
| Address | 164 Old Boston Road |
| Organization | BURNS, ELISABETH O. |
| Phone | 203-866-3366 |
Population & Service
| Population Served | 42,000 |
| Service Connections | 9,682 |
Drinking Water Violations (215)
This water system has 215 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, 2024 | — | Other | No | No | — | — | — | Resolved | Aug 13, 2024 | — | |
| Aug 10, 2024 | — | Other | No | No | — | — | — | Resolved | Aug 13, 2024 | — | |
| Jul 1, 2024 | — | Other | No | No | — | — | — | Resolved | Aug 12, 2024 | — | |
| Jul 1, 2024 | — | Other | No | No | — | — | — | Resolved | Aug 12, 2024 | — | |
| Jan 1, 2019 | Mar 31, 2019 | TT | Yes | No | — | TT | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | TT | Yes | No | — | TT | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | TT | Yes | No | — | TT | — | Archived | Mar 31, 2019 | — | |
| Aug 10, 2009 | — | Other | No | No | — | — | — | Resolved | Oct 28, 2009 | — | |
| Aug 10, 2009 | — | Other | No | No | — | — | — | Resolved | Oct 28, 2009 | — | |
| Jul 1, 2009 | — | Other | No | No | — | — | — | Resolved | Oct 28, 2009 | — | |
| Jul 1, 2009 | — | Other | No | No | — | — | — | Resolved | Oct 28, 2009 | — | |
| Aug 10, 2008 | — | Other | No | No | — | — | — | Resolved | Oct 28, 2009 | — | |
| Aug 10, 2008 | — | Other | No | No | — | — | — | Resolved | Oct 28, 2009 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Jul 9, 2008 | — | |
| Jul 1, 2008 | — | Other | No | No | — | — | — | Resolved | Jul 9, 2008 | — | |
| Nov 1, 2006 | Nov 30, 2006 | TT | Yes | No | — | — | — | Resolved | Nov 30, 2006 | — | |
| Nov 1, 2006 | Nov 30, 2006 | TT | Yes | No | — | — | — | Resolved | Nov 30, 2006 | — | |
| Nov 1, 2006 | Nov 30, 2006 | TT | Yes | No | — | — | — | Resolved | Nov 30, 2006 | — | |
| Nov 1, 2006 | Nov 30, 2006 | TT | Yes | No | — | — | — | Resolved | Nov 30, 2006 | — | |
| Jul 1, 2006 | — | Other | No | No | — | — | — | Resolved | Aug 1, 2006 | — | |
| Jul 1, 2006 | — | Other | No | No | — | — | — | Resolved | Aug 1, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Apr 1, 2006 | Jun 30, 2006 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2006 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.0005 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Oct 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 0.02 mg/L | — | Resolved | Dec 31, 2001 | — |
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.