C

Clearlake, CA

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️5 health-based violations on record.
0
Water sources
6
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 Clearlake'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 Clearlake, CA

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

Home water filtration system

Protect your home

Improve Clearlake'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

HIGHLANDS MUTUAL WATER COMPANY

PWSID:
CA1710003
Source:
Surface water
Serves:
7,772 people

EPA & DEP violations

HIGHLANDS MUTUAL WATER COMPANY

PWSID CA17100036 violations
  • MCL exceedance — HIGHLANDS MUTUAL WATER COMPANY

    high severityHealth-basedResolved

    EPA SDWIS violation 6 (code 02) at HIGHLANDS MUTUAL WATER COMPANY (PWSID CA1710003).

    EPA SDWIS · MCL exceedance · Began Apr 1, 2021 · 5 years ago · Source ↗

  • MCL exceedance — HIGHLANDS MUTUAL WATER COMPANY

    high severityHealth-basedResolved

    EPA SDWIS violation 5 (code 02) at HIGHLANDS MUTUAL WATER COMPANY (PWSID CA1710003).

    EPA SDWIS · MCL exceedance · Began Jan 1, 2021 · 5 years ago · Source ↗

  • Monitoring violation — HIGHLANDS MUTUAL WATER COMPANY

    low severityResolved

    EPA SDWIS violation 4 (code 52) at HIGHLANDS MUTUAL WATER COMPANY (PWSID CA1710003).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2019 · 7 years ago · Source ↗

  • MCL exceedance — HIGHLANDS MUTUAL WATER COMPANY

    high severityHealth-basedResolved

    EPA SDWIS violation 3 (code 02) at HIGHLANDS MUTUAL WATER COMPANY (PWSID CA1710003).

    EPA SDWIS · MCL exceedance · Began Apr 1, 2019 · 7 years ago · Source ↗

  • MCL exceedance — HIGHLANDS MUTUAL WATER COMPANY

    high severityHealth-basedResolved

    EPA SDWIS violation 2 (code 02) at HIGHLANDS MUTUAL WATER COMPANY (PWSID CA1710003).

    EPA SDWIS · MCL exceedance · Began Jan 1, 2019 · 7 years ago · Source ↗

  • MCL exceedance — HIGHLANDS MUTUAL WATER COMPANY

    high severityHealth-basedResolved

    EPA SDWIS violation 1 (code 02) at HIGHLANDS MUTUAL WATER COMPANY (PWSID CA1710003).

    EPA SDWIS · MCL exceedance · Began Oct 1, 2015 · 11 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.