S

Signal Hill, CA

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️5 health-based violations on record.
0
Water sources
10
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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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

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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

Signal Hill - City, Water Dept.

PWSID:
CA1910149
Source:
Surface water
Serves:
11,848 people

EPA & DEP violations

Signal Hill - City, Water Dept.

PWSID CA191014910 violations

  • Surface Water Treatment Rule — TT violation

    high severityHealth-basedResolved

    Surface Water Treatment Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Apr 1, 2025 · 1 year ago · Source ↗

  • Surface Water Treatment Rule — TT violation

    high severityHealth-basedResolved

    Surface Water Treatment Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Mar 1, 2025 · 1 year ago · Source ↗

  • Surface Water Treatment Rule — TT violation

    high severityHealth-basedResolved

    Surface Water Treatment Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Feb 1, 2025 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2023 · 3 years ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 1, 2023 · 3 years ago · Source ↗

  • Surface Water Treatment Rule — TT violation

    high severityHealth-basedResolved

    Surface Water Treatment Rule TT violation (Resolved).

    EPA SDWIS · TT · Began May 1, 2022 · 4 years ago · Source ↗

  • Surface Water Treatment Rule — TT violation

    high severityHealth-basedResolved

    Surface Water Treatment Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Mar 1, 2022 · 4 years ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

    EPA SDWIS · MR · Began Apr 1, 2013 · 13 years ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Apr 1, 2013 · 13 years ago · Source ↗

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.