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Parsippany Troy-Hills, NJ

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️2 health-based violations on record.
0
Water sources
20
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

Parsippany-Troy Hills Water Department

PWSID:
NJ1429001
Source:
Surface water
Serves:
50,400 people

Mountain Lakes Water Dep

PWSID:
NJ1425001
Source:
Ground water
Serves:
4,012 people

EPA & DEP violations

Parsippany-Troy Hills Water Department

PWSID NJ142900110 violations

  • Lead and Copper Rule — MR violation

    medium severityArchived

    Lead and Copper Rule MR violation (Archived).

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

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Mar 22, 2023 · 3 years ago · Source ↗

  • Surface Water Treatment Rule — MR violation

    medium severityResolved

    Surface Water Treatment Rule MR violation (Resolved).

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

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

  • Surface Water Treatment Rule — MR violation

    medium severityResolved

    Surface Water Treatment Rule MR violation (Resolved).

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

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Jul 1, 2020 · 6 years ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Mar 28, 2020 · 6 years ago · Source ↗

  • Lead and Copper Rule — TT violation

    high severityHealth-basedResolved

    Lead and Copper Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Jan 1, 2020 · 6 years ago · Source ↗

  • Lead and Copper Rule — TT violation

    high severityHealth-basedResolved

    Lead and Copper Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Jul 1, 2019 · 7 years ago · Source ↗

  • cis-1,2-Dichloroethylene — MR violation

    medium severityResolved

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

    EPA SDWIS · MR · Began Jan 1, 2018 · 8 years ago · Source ↗

Mountain Lakes Water Dep

PWSID NJ142500110 violations

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2025 · 7 months ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

  • Chlorine — MR violation

    medium severityArchived

    Chlorine MR violation (Archived).

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

  • Nitrate — MR violation

    medium severityArchived

    Nitrate MR violation (Archived).

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

  • Nitrate — MR violation

    medium severityArchived

    Nitrate MR violation (Archived).

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

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 1, 2024 · 2 years ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Oct 1, 2023 · 2 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 ↗

  • Consumer Confidence Rule — Other violation

    medium severityUnaddressed

    Consumer Confidence Rule Other violation (Unaddressed).

    EPA SDWIS · Other · Began Jul 1, 2021 · 5 years ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

Water-related lawsuits

No lawsuits on record.

In the news & sources

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