Y

Yosemite Valley, CA

—no score

Contamination score

Higher = more contaminated vs. other cities.

0
Water sources
4
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

YOSEMITE NPS-YOSEMITE VALLEY

PWSID:
CA2210503
Source:
Ground water
Serves:
1,000 people

EPA & DEP violations

YOSEMITE NPS-YOSEMITE VALLEY

PWSID CA22105034 violations

  • Other violation — YOSEMITE NPS-YOSEMITE VALLEY

    low severityOpen

    EPA SDWIS violation 711004 (code 71) at YOSEMITE NPS-YOSEMITE VALLEY (PWSID CA2210503).

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

  • Other violation — YOSEMITE NPS-YOSEMITE VALLEY

    low severityResolved

    EPA SDWIS violation 711003 (code 71) at YOSEMITE NPS-YOSEMITE VALLEY (PWSID CA2210503).

    EPA SDWIS · Other violation · Began Jul 1, 2007 · 19 years ago · Source ↗

  • Monitoring violation — YOSEMITE NPS-YOSEMITE VALLEY

    low severityResolved

    EPA SDWIS violation 511002 (code 52) at YOSEMITE NPS-YOSEMITE VALLEY (PWSID CA2210503).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2007 · 19 years ago · Source ↗

  • Other violation — YOSEMITE NPS-YOSEMITE VALLEY

    low severityResolved

    EPA SDWIS violation 511001 (code 71) at YOSEMITE NPS-YOSEMITE VALLEY (PWSID CA2210503).

    EPA SDWIS · Other violation · Began Jul 1, 2005 · 21 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

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