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Public water system record

Winchester Water Dept

Serves Winchester, Middlesex County, MA · 22,970 people served

Federal records show no health-based violations and no monitoring or reporting issues for Winchester Water Dept in the last ten years.

  • MA3344000
  • WINCHESTER
  • MA
  • 22,970 served

System profile

Source water Surface water
ZIP 01890
EPA system ID MA3344000

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Winchester Water Dept draws water from 3 surface water intakes.
  • Most recent formal enforcement: compliance order (no penalty) by Massachusetts, January 2006.
  • Record on file since 1991, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 81 lead and 356 unknown out of 7,292 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016, and no monitoring or reporting violations either.

Full record since 1991

EPA's records for Winchester Water Dept go back to 1991. Before October 19, 2016 they list 4 health-based violations (1 resolved, 3 archived by EPA without a recorded fix) and 27 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 4 12
2000s 0 2
2010 to October 18, 2016 0 13

Most recent health-based violation before October 19, 2016: Total Coliform, began June 1997, Archived.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Jun 1, 1997 Archived
Total Coliform
Contaminant limit exceeded
 Apr 1, 1996 Archived
Total Coliform
Contaminant limit exceeded
 Aug 1, 1995 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jan 1, 1992 Resolved

Enforcement actions

Massachusetts regulators took 5 formal enforcement actions against Winchester Water Dept between 1996 and 2006. The most recent was a compliance order (no penalty) in January 2006.

Date By Action Violations covered
Jan 19, 2006 Massachusetts Compliance order (no penalty) 1 violation: Lead and Copper Rule
Jan 2, 2002 Massachusetts Compliance order (no penalty) 1 violation: Lead and Copper Rule
Jan 27, 1998 Massachusetts Compliance order (no penalty) 5 violations: Radium-226, Radium-228, Gross Beta Particle Activity, 38-STRONTIUM-90, Tritium
Aug 27, 1997 Massachusetts Compliance order (no penalty) 1 violation: Nitrate
Jun 6, 1996 Massachusetts Compliance order (no penalty) 1 violation (1 health-based): Total Coliform

Where the water comes from

Winchester Water Dept draws water from 3 surface water intakes. It also buys water from MWRA.

Buys water from

Annual water quality report

Winchester Water Dept must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Massachusetts.

Certified drinking water labs by state EPA guidance for private wells