WINCHESTER WATER DEPT
Massachusetts — Community Water System — PWSID: MA3344000
System Information
| PWSID | MA3344000 |
| System Name | WINCHESTER WATER DEPT |
| 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 | Feb 26, 1979 |
| Last Reported | Dec 17, 2025 |
Location & Contact
| State | Massachusetts |
| City | WINCHESTER |
| ZIP Code | 01890 |
| Address | 15 LAKE ST |
| Organization | WINCHESTER WATER DEPT |
| Phone | 7817217100 |
Population & Service
| Population Served | 22,970 |
| Service Connections | 7,142 |
Drinking Water Violations (15)
This water system has 15 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, 2014 | Mar 31, 2014 | Barium | MR | No | No | — | 2 mg/L | — | Resolved | Mar 31, 2014 | Inorganic Chemicals |
| Jan 1, 2014 | Mar 31, 2014 | Barium | MR | No | No | — | 2 mg/L | — | Resolved | Mar 31, 2014 | Inorganic Chemicals |
| Jul 1, 1997 | Sep 30, 1997 | 38-STRONTIUM-90 | MR | No | Yes | — | — | — | Archived | Sep 30, 1997 | Radionuclides and Revised Rad Rule |
| Oct 1, 1991 | Dec 31, 1991 | 2,4,5-TP | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | 2,4,5-TP | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | 2,4-D | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | 2,4-D | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | Toxaphene | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | Toxaphene | MR | No | Yes | — | 0.003 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | Methoxychlor | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | Methoxychlor | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | BHC-GAMMA | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | BHC-GAMMA | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | Endrin | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
| Oct 1, 1991 | Dec 31, 1991 | Endrin | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1991 | Synthetic Organic Chemicals |
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.