Public water system record

St Marys Glacier WSD

Serves St. Mary's, Clear Creek County, CO · 451 people served

Federal records show 7 health-based violations and 27 monitoring/reporting issues for St Marys Glacier WSD in the last ten years, including an unresolved Groundwater Rule violation.

  • CO0110040
  • WHEAT RIDGE
  • CO
  • 451 served

System profile

Source water Groundwater under direct influence
ZIP 80033
EPA system ID CO0110040

Verify this system on EPA ECHO →

Health-based violations, last 10 years
7
Resolved
6
Unresolved
1
Any acute record
Yes
Monitoring issues, last 10 years
27

Key facts

  • St Marys Glacier WSD draws water from 4 wells (1 of them for emergency, seasonal or other part-time use).
  • Most recent formal enforcement: compliance order with a penalty by Colorado, January 2023.
  • Record on file since 1991, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 33 unknown out of 292 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2024 Resolved Yes
Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2024 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Feb 1, 2023 Resolved No
Lead and Copper Rule
Treatment technique failure
350 Dec 3, 2021 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Oct 2, 2019 Resolved No
Groundwater Rule
Treatment technique failure
140 Feb 28, 2018 Resolved No
Groundwater Rule
Treatment technique failure
140 Nov 1, 2014 Active
Enforcement action in place
No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
E. coli
Monitoring and reporting
Nov 1, 2025 Resolved
E. coli
Monitoring and reporting
Nov 1, 2025 Resolved
E. coli
Monitoring and reporting
Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
OTHER
Aug 15, 2025 Resolved
Public Notice
OTHER
Jun 8, 2024 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2024 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2023 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2023 Resolved
Surface Water Treatment Rule
Monitoring and reporting
May 1, 2023 Resolved
Public Notice
OTHER
Apr 14, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Mar 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2022 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2021 Resolved
Public Notice
OTHER
Aug 29, 2019 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2019 Resolved
Public Notice
OTHER
Nov 29, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2018 Resolved
Public Notice
OTHER
Mar 1, 2018 Resolved
Revised Total Coliform Rule
OTHER
Oct 28, 2017 Resolved

Full record since 1991

EPA's records for St Marys Glacier WSD go back to 1991. Before October 19, 2016 they list 4 health-based violations (3 resolved, 1 not resolved) and 15 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 3
2000s 3 6
2010 to October 18, 2016 1 6
October 19, 2016 to 2019 2 7
2020s 4 20

Most recent health-based violation before October 19, 2016: Groundwater Rule, began November 2014, Active.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Groundwater Rule
Treatment technique failure
Nov 1, 2014 Active
Total Coliform
Contaminant limit exceeded
May 1, 2001 Resolved
Total Coliform
Contaminant limit exceeded
Apr 1, 2001 Resolved
Total Coliform
Contaminant limit exceeded
Mar 1, 2000 Resolved

Enforcement actions

Colorado regulators took 2 formal enforcement actions against St Marys Glacier WSD and issued 2 boil water orders between 2018 and 2023. The most recent was a compliance order with a penalty in January 2023.

Date By Action Violations covered
Jan 10, 2023 Colorado Compliance order with a penalty 2 violations (2 health-based): Surface Water Treatment Rule, Lead and Copper Rule
Oct 17, 2019 Colorado Compliance order with a penalty 3 violations (3 health-based): Groundwater Rule, Surface Water Treatment Rule
Oct 9, 2019 Colorado Boil water order 1 violation
Apr 18, 2018 Colorado Boil water order 1 violation

What the violations mean

Surface Water Treatment Rule

3 incidents

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Groundwater Rule

2 incidents

The system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Interim Enhanced Surface Water Treatment Rule

1 incident

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Lead and Copper Rule

1 incident

The system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

St Marys Glacier WSD draws water from 4 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

St Marys Glacier WSD must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask St Marys Glacier WSD for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Colorado.