C

Chelmsford, MA

—no score

Contamination score

Higher = more contaminated vs. other cities.

0
Water sources
20
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

Share this with friends & family you care about ❤️

Help someone you love know what's in their water — we'll email them Chelmsford's report. No sign-ups, no list.

Reported illness & cancer claims

No claims reported yet. Be the first to add one.

Claims are aggregated from public records and community reports and may be unverified. If you believe your illness is linked to local water, request a consultation.

Self-reported issues

No issues reported yet. Be the first to report one.

Pollution sources & reported claims near your water

Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.

Critical High Medium Reported claim

Get water alerts for Chelmsford, MA

We'll email you when a new violation, lawsuit, or health report appears for Chelmsford's water. Free, unsubscribe anytime.

Home water filtration system

Protect your home

Improve Chelmsford's water

A certified filtration system can remove lead, PFAS, nitrates, and the contaminants flagged on this page. Get a free, no-obligation quote tailored to your home.

What are you interested in?

By submitting you agree to be contacted about water treatment options.

Public water systems

Chelmsford Water District

PWSID:
MA3056000
Source:
Ground water
Serves:
28,750 people

East Chelmsford Water District

PWSID:
MA3056001
Source:
Surface water
Serves:
2,800 people

North Chelmsford Water Dist

PWSID:
MA3056002
Source:
Ground water
Serves:
7,660 people

EPA & DEP violations

City-wide

20 violations

  • Consumer Confidence Rule — Other violation

    medium severityUnaddressed

    Consumer Confidence Rule Other violation (Unaddressed).

    EPA SDWIS · Other · Began Jul 2, 2025 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityAddressed

    Lead and Copper Rule MR violation (Addressed).

    EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityAddressed

    Revised Total Coliform Rule RPT violation (Addressed).

    EPA SDWIS · RPT · Began Jul 1, 2018 · 8 years ago · Source ↗

  • 1,1,1-Trichloroethane — MR violation

    medium severityArchived

    1,1,1-Trichloroethane MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Vinyl chloride — MR violation

    medium severityArchived

    Vinyl chloride MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • cis-1,2-Dichloroethylene — MR violation

    medium severityArchived

    cis-1,2-Dichloroethylene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Ethylbenzene — MR violation

    medium severityArchived

    Ethylbenzene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Styrene — MR violation

    medium severityArchived

    Styrene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Tetrachloroethylene — MR violation

    medium severityArchived

    Tetrachloroethylene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • p-Dichlorobenzene — MR violation

    medium severityArchived

    p-Dichlorobenzene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Xylenes, Total — MR violation

    medium severityArchived

    Xylenes, Total MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • 1,1,2-Trichloroethane — MR violation

    medium severityArchived

    1,1,2-Trichloroethane MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • 1,2,4-Trichlorobenzene — MR violation

    medium severityArchived

    1,2,4-Trichlorobenzene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Carbon tetrachloride — MR violation

    medium severityArchived

    Carbon tetrachloride MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • trans-1,2-Dichloroethylene — MR violation

    medium severityArchived

    trans-1,2-Dichloroethylene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Benzene — MR violation

    medium severityArchived

    Benzene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • 1,2-Dichloropropane — MR violation

    medium severityArchived

    1,2-Dichloropropane MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • 1,2-Dichloroethane — MR violation

    medium severityArchived

    1,2-Dichloroethane MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • 1,1-Dichloroethylene — MR violation

    medium severityArchived

    1,1-Dichloroethylene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

  • o-Dichlorobenzene — MR violation

    medium severityArchived

    o-Dichlorobenzene MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2017 · 9 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.