B

Boulder, CO

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️4 health-based violations on record.
0
Water sources
42
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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Critical High Medium Reported claim

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Public water systems

BOULDER CITY OF

PWSID:
CO0107152
Source:
Surface water
Serves:
166,080 people

Vista Village MHP

PWSID:
CO0107810
Source:
Surface water
Serves:
750 people

EPA & DEP violations

BOULDER CITY OF

PWSID CO01071527 violations

  • Monitoring violation — BOULDER CITY OF

    low severityOpen

    EPA SDWIS violation 213 (code 38) at BOULDER CITY OF (PWSID CO0107152).

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

  • Monitoring violation — BOULDER CITY OF

    low severityResolved

    EPA SDWIS violation 194 (code 36) at BOULDER CITY OF (PWSID CO0107152).

    EPA SDWIS · Monitoring violation · Began Jun 1, 2022 · 4 years ago · Source ↗

  • MCL exceedance — BOULDER CITY OF

    high severityHealth-basedResolved

    EPA SDWIS violation 193 (code 02) at BOULDER CITY OF (PWSID CO0107152).

    EPA SDWIS · MCL exceedance · Began Jul 1, 2017 · 9 years ago · Source ↗

  • MCL exceedance — BOULDER CITY OF

    high severityHealth-basedResolved

    EPA SDWIS violation 192 (code 02) at BOULDER CITY OF (PWSID CO0107152).

    EPA SDWIS · MCL exceedance · Began Apr 1, 2017 · 9 years ago · Source ↗

  • Monitoring violation — BOULDER CITY OF

    low severityResolved

    EPA SDWIS violation 189 (code 36) at BOULDER CITY OF (PWSID CO0107152).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2017 · 9 years ago · Source ↗

  • Monitoring violation — BOULDER CITY OF

    low severityResolved

    EPA SDWIS violation 190 (code 36) at BOULDER CITY OF (PWSID CO0107152).

    EPA SDWIS · Monitoring violation · Began Dec 1, 2016 · 9 years ago · Source ↗

  • Monitoring violation — BOULDER CITY OF

    low severityResolved

    EPA SDWIS violation 191 (code 36) at BOULDER CITY OF (PWSID CO0107152).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2016 · 9 years ago · Source ↗

Vista Village MHP

PWSID CO010781017 violations

  • Other violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 21 (code 5A) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Other violation · Began Jun 13, 2025 · 1 year ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 19 (code 27) at VISTA VILLAGE MHP (PWSID CO0107810).

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

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 20 (code 27) at VISTA VILLAGE MHP (PWSID CO0107810).

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

  • Other violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 11 (code 75) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Other violation · Began Dec 8, 2018 · 7 years ago · Source ↗

  • Treatment technique violation — VISTA VILLAGE MHP

    high severityHealth-basedResolved

    EPA SDWIS violation 7 (code 12) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Treatment technique violation · Began Nov 4, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 12 (code 3A) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 13 (code 36) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 5 (code 35) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Oct 11, 2018 · 7 years ago · Source ↗

  • Other violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 6 (code 5A) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Other violation · Began Oct 11, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 10 (code 27) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 15 (code 27) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 16 (code 27) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 8 (code 3A) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 9 (code 36) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 1 (code 3A) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Sep 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 2 (code 36) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Sep 1, 2018 · 7 years ago · Source ↗

  • Monitoring violation — VISTA VILLAGE MHP

    low severityResolved

    EPA SDWIS violation 3 (code 27) at VISTA VILLAGE MHP (PWSID CO0107810).

    EPA SDWIS · Monitoring violation · Began Jul 1, 2018 · 8 years ago · Source ↗

City-wide

18 violations

  • Revised Total Coliform Rule — Other violation

    medium severityResolved

    Revised Total Coliform Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jun 13, 2025 · 1 year ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

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

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

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

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

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Dec 8, 2018 · 7 years ago · Source ↗

  • Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation

    high severityHealth-basedResolved

    Stage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Nov 4, 2018 · 7 years ago · Source ↗

  • Long Term 2 Enhanced Surface Water Treatment Rule — MR violation

    medium severityResolved

    Long Term 2 Enhanced Surface Water Treatment Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Nov 1, 2018 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Nov 1, 2018 · 7 years ago · Source ↗

  • Stage 2 Disinfectants and Disinfection Byproducts Rule — MR violation

    medium severityResolved

    Stage 2 Disinfectants and Disinfection Byproducts Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 11, 2018 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — Other violation

    medium severityResolved

    Revised Total Coliform Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Oct 11, 2018 · 7 years ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

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

    EPA SDWIS · MR · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Long Term 2 Enhanced Surface Water Treatment Rule — MR violation

    medium severityResolved

    Long Term 2 Enhanced Surface Water Treatment Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Oct 1, 2018 · 7 years ago · Source ↗

  • Long Term 2 Enhanced Surface Water Treatment Rule — MR violation

    medium severityResolved

    Long Term 2 Enhanced Surface Water Treatment Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 1, 2018 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Sep 1, 2018 · 7 years ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

    EPA SDWIS · MR · Began Jul 1, 2018 · 8 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.