W

Willow Creek, CA

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️3 health-based violations on record.
0
Water sources
5
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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Self-reported issues

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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

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Public water systems

WILLOW CREEK C.S.D.

PWSID:
CA1210015
Source:
Surface water
Serves:
1,298 people

EPA & DEP violations

WILLOW CREEK C.S.D.

PWSID CA12100155 violations

  • Reporting violation — WILLOW CREEK C.S.D.

    low severityOpen

    EPA SDWIS violation 9301008 (code 4H) at WILLOW CREEK C.S.D. (PWSID CA1210015).

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

  • Reporting violation — WILLOW CREEK C.S.D.

    low severityOpen

    EPA SDWIS violation 9301005 (code 4G) at WILLOW CREEK C.S.D. (PWSID CA1210015).

    EPA SDWIS · Reporting violation · Began Oct 17, 2024 · 1 year ago · Source ↗

  • Treatment technique violation — WILLOW CREEK C.S.D.

    high severityHealth-basedOpen

    EPA SDWIS violation 9301006 (code 2E) at WILLOW CREEK C.S.D. (PWSID CA1210015).

    EPA SDWIS · Treatment technique violation · Began Oct 17, 2024 · 1 year ago · Source ↗

  • Treatment technique violation — WILLOW CREEK C.S.D.

    high severityHealth-basedResolved

    EPA SDWIS violation 9301003 (code 2A) at WILLOW CREEK C.S.D. (PWSID CA1210015).

    EPA SDWIS · Treatment technique violation · Began Jun 18, 2019 · 7 years ago · Source ↗

  • Treatment technique violation — WILLOW CREEK C.S.D.

    high severityHealth-basedResolved

    EPA SDWIS violation 9301001 (code 41) at WILLOW CREEK C.S.D. (PWSID CA1210015).

    EPA SDWIS · Treatment technique violation · Began Jun 1, 1993 · 33 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

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