S

St. Mary's, CO

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️7 health-based violations on record.
0
Water sources
37
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

ST MARYS GLACIER WSD

PWSID:
CO0110040
Source:
Surface water
Serves:
451 people

EPA & DEP violations

ST MARYS GLACIER WSD

PWSID CO011004037 violations

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003127 (code 32) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2025 · 9 months ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003128 (code 32) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2025 · 9 months ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityOpen

    EPA SDWIS violation 4003126 (code 32) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Other violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003125 (code 5A) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Other violation · Began Aug 15, 2025 · 11 months ago · Source ↗

  • Other violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003122 (code 75) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Other violation · Began Jun 8, 2024 · 2 years ago · Source ↗

  • Treatment technique violation — ST MARYS GLACIER WSD

    high severityHealth-basedResolved

    EPA SDWIS violation 4003123 (code 44) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Treatment technique violation · Began Jun 1, 2024 · 2 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003120 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2024 · 2 years ago · Source ↗

  • Treatment technique violation — ST MARYS GLACIER WSD

    high severityHealth-basedResolved

    EPA SDWIS violation 4003121 (code 41) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Treatment technique violation · Began Apr 1, 2024 · 2 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003118 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2023 · 2 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003119 (code 38) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2023 · 2 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003115 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2023 · 2 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003117 (code 38) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2023 · 2 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003114 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Jun 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003113 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began May 1, 2023 · 3 years ago · Source ↗

  • Other violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003111 (code 75) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Other violation · Began Apr 14, 2023 · 3 years ago · Source ↗

  • Treatment technique violation — ST MARYS GLACIER WSD

    high severityHealth-basedResolved

    EPA SDWIS violation 4003110 (code 41) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Treatment technique violation · Began Feb 1, 2023 · 3 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003109 (code 52) at ST MARYS GLACIER WSD (PWSID CO0110040).

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

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003108 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

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

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003107 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

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

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003106 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

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

  • Treatment technique violation — ST MARYS GLACIER WSD

    high severityHealth-basedResolved

    EPA SDWIS violation 4003103 (code 58) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Treatment technique violation · Began Dec 3, 2021 · 4 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003105 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Dec 1, 2021 · 4 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003104 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Nov 1, 2021 · 4 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003102 (code 36) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Aug 1, 2021 · 5 years ago · Source ↗

  • Treatment technique violation — ST MARYS GLACIER WSD

    high severityHealth-basedResolved

    EPA SDWIS violation 4003098 (code 42) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Treatment technique violation · Began Oct 2, 2019 · 6 years ago · Source ↗

  • Other violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003096 (code 75) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Other violation · Began Aug 29, 2019 · 6 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003095 (code 56) at ST MARYS GLACIER WSD (PWSID CO0110040).

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

  • Other violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003093 (code 75) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Other violation · Began Nov 29, 2018 · 7 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003023 (code 52) at ST MARYS GLACIER WSD (PWSID CO0110040).

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

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003094 (code 53) at ST MARYS GLACIER WSD (PWSID CO0110040).

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

  • Other violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003022 (code 75) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Other violation · Began Mar 1, 2018 · 8 years ago · Source ↗

  • Treatment technique violation — ST MARYS GLACIER WSD

    high severityHealth-basedResolved

    EPA SDWIS violation 4003100 (code 45) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Treatment technique violation · Began Feb 28, 2018 · 8 years ago · Source ↗

  • Other violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003020 (code 5A) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Other violation · Began Oct 28, 2017 · 8 years ago · Source ↗

  • Treatment technique violation — ST MARYS GLACIER WSD

    high severityHealth-basedOpen

    EPA SDWIS violation 4003021 (code 45) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Treatment technique violation · Began Nov 1, 2014 · 11 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003019 (code 52) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Jul 1, 2013 · 13 years ago · Source ↗

  • Monitoring violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4003009 (code 52) at ST MARYS GLACIER WSD (PWSID CO0110040).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2007 · 18 years ago · Source ↗

  • Other violation — ST MARYS GLACIER WSD

    low severityResolved

    EPA SDWIS violation 4002707 (code 71) at ST MARYS GLACIER WSD (PWSID CO0110040).

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

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.