CO0107115 · Colorado
ALLENSPARK WSD
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 17
- EPA health-based flag
- 2
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 5
Counties listed by EPA · Boulder 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 17 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 303 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 4011712 · Surface Water Treatment Rule · Surface Water Treatment RuleNoncompliance 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 4036049 March 17, 2022 Resolving State Compliance achieved 4036044 March 18, 2022 Informal State Violation/Reminder Notice 4036045 March 18, 2022 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 4011711 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance 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 4036049 March 17, 2022 Resolving State Compliance achieved 4036042 March 18, 2022 Informal State Violation/Reminder Notice 4036043 March 18, 2022 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 4011713 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2022 · period end March 17, 2022 · first reported August 15, 2022 · EPA return-to-compliance field March 17, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036049 March 17, 2022 Resolving State Compliance achieved 4036046 June 1, 2022 Informal State Violation/Reminder Notice 4036047 June 1, 2022 Informal State Public Notification requested Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4011710 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 6, 2021 · period end August 5, 2021 · first reported August 18, 2021 · EPA return-to-compliance field August 5, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036030 August 5, 2021 Resolving State Compliance achieved 4036033 August 12, 2021 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4011709 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 23, 2021 · period end August 5, 2021 · first reported May 17, 2021 · EPA return-to-compliance field August 5, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036029 May 6, 2021 Informal State Violation/Reminder Notice 4036030 August 5, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4011708 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 6, 2021 · period end August 5, 2021 · first reported May 17, 2021 · EPA return-to-compliance field August 5, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036025 April 20, 2021 Informal State Violation/Reminder Notice 4036030 August 5, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4011704 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 6, 2021 · period end August 5, 2021 · first reported February 16, 2021 · EPA return-to-compliance field August 5, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036016 January 20, 2021 Informal State Violation/Reminder Notice 4036030 August 5, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 4011703 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 1, 2020 · period end September 17, 2021 · first reported February 16, 2021 · EPA return-to-compliance field September 17, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036014 December 1, 2020 Informal State Violation/Reminder Notice 4036015 December 1, 2020 Informal State Public Notification requested 4036034 September 17, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4011702 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 6, 2020 · period end August 5, 2021 · first reported November 16, 2020 · EPA return-to-compliance field August 5, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036013 October 15, 2020 Informal State Violation/Reminder Notice 4036030 August 5, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4011701 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 6, 2020 · period end August 5, 2021 · first reported September 8, 2020 · EPA return-to-compliance field August 5, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036012 August 26, 2020 Informal State Violation/Reminder Notice 4036030 August 5, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4011700 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 6, 2020 · period end August 5, 2021 · first reported May 18, 2020 · EPA return-to-compliance field August 5, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036011 May 5, 2020 Informal State Violation/Reminder Notice 4036030 August 5, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 4011706 · Groundwater Rule · Ground Water RuleNoncompliance period start April 5, 2020 · period end April 26, 2021 · first reported May 17, 2021 · EPA return-to-compliance field April 26, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036021 March 23, 2021 Informal State Violation/Reminder Notice 4036022 March 23, 2021 Informal State Public Notification requested 4036026 April 26, 2021 Resolving State Compliance achieved 4036031 August 5, 2021 Informal State Public Notification received EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 4011705 · Groundwater Rule · Ground Water RuleNoncompliance period start April 5, 2020 · period end May 4, 2021 · first reported May 17, 2021 · EPA return-to-compliance field May 4, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036019 March 23, 2021 Informal State Violation/Reminder Notice 4036020 March 23, 2021 Informal State Public Notification requested 4036027 May 4, 2021 Resolving State Compliance achieved 4036032 August 5, 2021 Informal State Public Notification received Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4011699 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 6, 2020 · period end August 5, 2021 · first reported May 18, 2020 · EPA return-to-compliance field August 5, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036011 May 5, 2020 Informal State Violation/Reminder Notice 4036030 August 5, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 4011694 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start July 1, 2019 · period end March 23, 2021 · first reported November 18, 2019 · EPA return-to-compliance field March 23, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4036000 August 14, 2019 Informal State Violation/Reminder Notice 4036001 August 14, 2019 Informal State Public Notification requested 4036017 March 23, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4011689 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start August 10, 2017 · period end September 29, 2021 · first reported November 15, 2017 · EPA return-to-compliance field September 29, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4035988 September 13, 2017 Informal State Violation/Reminder Notice 4036036 September 29, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 4011691 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start August 5, 2017 · period end September 29, 2021 · first reported February 15, 2018 · EPA return-to-compliance field September 29, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4035994 December 12, 2017 Informal State Violation/Reminder Notice 4036037 September 29, 2021 Resolving State Compliance achieved
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