CO0110040 · Colorado

ST MARYS GLACIER WSD

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 26
EPA health-based flag: 6
Health-based records unresolved in this snapshot: 1
Monitoring and reporting records: 17

Counties listed by EPA · Clear Creek County, Colorado

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 24 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 29 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Addressed by formal action

Failure To Address DeficiencyViolation 4003021 · Groundwater Rule · Ground Water Rule

Noncompliance period start November 1, 2014 · first reported November 15, 2017

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002942	October 30, 2017	Informal	State Violation/Reminder Notice
4002943	October 30, 2017	Informal	State Public Notification requested
4002975	October 17, 2019	Formal	State Administrative/Compliance Order with penalty issued

Monitoring or reporting · Resolved

Monitoring, Source Water (LT2)Violation 4003128 · E. COLI · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported February 23, 2026 · EPA return-to-compliance field November 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003049	December 1, 2025	Resolving	State Compliance achieved
4003047	January 19, 2026	Informal	State Violation/Reminder Notice
4003048	January 19, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Source Water (LT2)Violation 4003127 · E. COLI · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported February 23, 2026 · EPA return-to-compliance field November 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003049	December 1, 2025	Resolving	State Compliance achieved
4003047	January 19, 2026	Informal	State Violation/Reminder Notice
4003048	January 19, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Source Water (LT2)Violation 4003126 · E. COLI · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start October 1, 2025 · period end October 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field October 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003045	December 30, 2025	Informal	State Violation/Reminder Notice
4003046	December 30, 2025	Informal	State Public Notification requested

Other or unclassified · Resolved

Sample Siting Plan Errors (RTCR)Violation 4003125 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 15, 2025 · period end August 15, 2025 · first reported November 17, 2025 · EPA return-to-compliance field August 15, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003040	August 15, 2025	Informal	State Violation/Reminder Notice
4003041	August 15, 2025	Informal	State Public Notification requested
4003042	August 15, 2025	Resolving	State Compliance achieved
4003043	August 15, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4003122 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 8, 2024 · period end August 5, 2024 · first reported August 14, 2024 · EPA return-to-compliance field August 5, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4003031 July 1, 2024 Informal State Violation/Reminder Notice
4003036 August 5, 2024 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003031	July 1, 2024	Informal	State Violation/Reminder Notice
4003036	August 5, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 4003123 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start June 1, 2024 · period end June 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003032	July 9, 2024	Informal	State Violation/Reminder Notice
4003033	July 9, 2024	Informal	State Public Notification requested
4003035	August 5, 2024	Informal	State Public Notification received
4003037	August 8, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 4003121 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start April 1, 2024 · period end April 30, 2024 · first reported May 16, 2024 · EPA return-to-compliance field April 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003027	May 8, 2024	Informal	State Violation/Reminder Notice
4003028	May 8, 2024	Informal	State Public Notification requested
4003030	June 5, 2024	Resolving	State Compliance achieved
4003034	August 5, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003120 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start April 1, 2024 · period end April 30, 2024 · first reported May 16, 2024 · EPA return-to-compliance field April 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003025	May 8, 2024	Informal	State Violation/Reminder Notice
4003026	May 8, 2024	Informal	State Public Notification requested
4003030	June 5, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 4003119 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start November 1, 2023 · period end November 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field November 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003022	December 12, 2023	Informal	State Violation/Reminder Notice
4003023	December 12, 2023	Informal	State Public Notification requested
4003024	January 8, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003118 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start November 1, 2023 · period end November 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field November 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003022	December 12, 2023	Informal	State Violation/Reminder Notice
4003023	December 12, 2023	Informal	State Public Notification requested
4003024	January 8, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 4003117 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start October 1, 2023 · period end October 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field October 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003020	November 15, 2023	Informal	State Violation/Reminder Notice
4003021	November 15, 2023	Informal	State Public Notification requested
4003024	January 8, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003115 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start October 1, 2023 · period end October 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field October 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003020	November 15, 2023	Informal	State Violation/Reminder Notice
4003021	November 15, 2023	Informal	State Public Notification requested
4003024	January 8, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003114 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start June 1, 2023 · period end June 30, 2023 · first reported August 15, 2023 · EPA return-to-compliance field June 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003016	July 31, 2023	Informal	State Violation/Reminder Notice
4003017	July 31, 2023	Informal	State Public Notification requested
4003018	August 1, 2023	Informal	State Public Notification received
4003019	August 1, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003113 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start May 1, 2023 · period end May 31, 2023 · first reported August 15, 2023 · EPA return-to-compliance field May 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003014	July 14, 2023	Informal	State Violation/Reminder Notice
4003015	July 14, 2023	Informal	State Public Notification requested
4003018	August 1, 2023	Informal	State Public Notification received
4003019	August 1, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4003111 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start April 14, 2023 · period end May 1, 2023 · first reported May 15, 2023 · EPA return-to-compliance field May 1, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4003008 May 1, 2023 Informal State Violation/Reminder Notice
4003011 May 1, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003008	May 1, 2023	Informal	State Violation/Reminder Notice
4003011	May 1, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 4003110 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start February 1, 2023 · period end February 28, 2023 · first reported May 15, 2023 · EPA return-to-compliance field February 28, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4003003	March 14, 2023	Informal	State Violation/Reminder Notice
4003004	March 14, 2023	Informal	State Public Notification requested
4003009	April 1, 2023	Resolving	State Compliance achieved
4003010	May 4, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 4003109 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start July 1, 2022 · period end October 6, 2022 · first reported August 15, 2022 · EPA return-to-compliance field October 6, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002998	August 10, 2022	Informal	State Violation/Reminder Notice
4002999	August 10, 2022	Informal	State Public Notification requested
4003000	October 6, 2022	Resolving	State Compliance achieved
4003002	November 1, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003108 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start March 1, 2022 · period end March 31, 2022 · first reported May 17, 2022 · EPA return-to-compliance field March 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002995	April 12, 2022	Informal	State Violation/Reminder Notice
4002996	April 12, 2022	Informal	State Public Notification requested
4002997	May 5, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003107 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start February 1, 2022 · period end February 28, 2022 · first reported May 17, 2022 · EPA return-to-compliance field February 28, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002993	March 11, 2022	Informal	State Violation/Reminder Notice
4002994	March 11, 2022	Informal	State Public Notification requested
4002997	May 5, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003106 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start January 1, 2022 · period end January 31, 2022 · first reported May 17, 2022 · EPA return-to-compliance field January 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002991	February 16, 2022	Informal	State Violation/Reminder Notice
4002992	February 16, 2022	Informal	State Public Notification requested
4002997	May 5, 2022	Resolving	State Compliance achieved

EPA health-based flag · Resolved

OCCT/SOWT Treatment Installation/DemonstrationViolation 4003103 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start December 3, 2021 · period end February 2, 2023 · first reported February 23, 2022 · EPA return-to-compliance field February 2, 2023

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002985	December 7, 2021	Informal	State Violation/Reminder Notice
4002986	December 7, 2021	Informal	State Public Notification requested
4003007	January 6, 2022	Informal	State Public Notification received
4003006	November 4, 2022	Informal	State Public Notification received
4003001	January 10, 2023	Formal	State Administrative/Compliance Order with penalty issued
4003005	February 2, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003105 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start December 1, 2021 · period end December 31, 2021 · first reported February 23, 2022 · EPA return-to-compliance field December 31, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002989	January 13, 2022	Informal	State Violation/Reminder Notice
4002990	January 13, 2022	Informal	State Public Notification requested
4002997	May 5, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003104 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start November 1, 2021 · period end November 30, 2021 · first reported February 23, 2022 · EPA return-to-compliance field November 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002987	December 16, 2021	Informal	State Violation/Reminder Notice
4002988	December 16, 2021	Informal	State Public Notification requested
4002997	May 5, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4003102 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start August 1, 2021 · period end August 31, 2021 · first reported December 2, 2021 · EPA return-to-compliance field August 31, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002983	September 9, 2021	Informal	State Violation/Reminder Notice
4002984	September 9, 2021	Informal	State Public Notification requested
4002997	May 5, 2022	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure to Filter (SWTR)Violation 4003098 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start October 2, 2019 · period end February 2, 2023 · first reported November 18, 2019 · EPA return-to-compliance field February 2, 2023

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4002969	October 8, 2019	Informal	State Violation/Reminder Notice
4002970	October 8, 2019	Informal	State Public Notification requested
4002975	October 17, 2019	Formal	State Administrative/Compliance Order with penalty issued
4003001	January 10, 2023	Formal	State Administrative/Compliance Order with penalty issued
4003005	February 2, 2023	Resolving	State Compliance achieved
4003029	February 2, 2023	Informal	State Public Notification received

EPA data and scope

How to read the records

The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.

We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.

EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility