Public Water Partners

CHELMSFORD, MA · Middlesex County

CHELMSFORD WATER DISTRICT Water System

Consumer Confidence Report status

CHELMSFORD WATER DISTRICT must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for CHELMSFORD WATER DISTRICT.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Massachusetts’s official records. Always confirm current status with Massachusetts before making decisions based on this information.

System facts

System ID (PWSID)
MA3056000
System type
Community Water System
Population served
28,750
Service connections
8,388
Ownership
local government
Water source
groundwater (wells)

CHELMSFORD WATER DISTRICT is one of 168 community water systems in Massachusetts in the 10,001 to 100,000 people size category, serving 28,750 people from groundwater.

As of August 1, 2026, its federal record holds 1 entry in 1991, all of which EPA lists as closed. Nothing has been added since 1991.

None of the 1 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.

Violation history

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    February 1, 1991 – February 28, 1991

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is CHELMSFORD WATER DISTRICT required to publish a Consumer Confidence Report?

Yes. CHELMSFORD WATER DISTRICT is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is CHELMSFORD WATER DISTRICT’s next Consumer Confidence Report due?

CHELMSFORD WATER DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does CHELMSFORD WATER DISTRICT have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for CHELMSFORD WATER DISTRICT.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

CHELMSFORD WATER DISTRICT

9782562931

CHELMSFORD, MA 01824