CO0107502 · Colorado
MAPLE GROVE WD
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 11
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 3
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 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 95 days. The interval uses the reporting periods and dates on file.
Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Complete Failure to ReportViolation 4001129 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2026 · first reported September 15, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029972 July 21, 2026 Informal State Violation/Reminder Notice 4029973 July 21, 2026 Informal State Public Notification requested Other or unclassified · Unaddressed by formal action
Public Notification Violation without NPDWR ViolationViolation 4001128 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 31, 2025 · first reported February 23, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029968 January 27, 2026 Informal State Violation/Reminder Notice Other or unclassified · Unaddressed by formal action
Public Notification Violation without NPDWR ViolationViolation 4001127 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 1, 2025 · first reported November 17, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029967 November 12, 2025 Informal State Violation/Reminder Notice Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Complete Failure to ReportViolation 4001126 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · first reported August 18, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029965 July 15, 2025 Informal State Violation/Reminder Notice 4029966 July 15, 2025 Informal State Public Notification requested Other or unclassified · Unaddressed by formal action
Public Notification Violation without NPDWR ViolationViolation 4001125 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start July 1, 2025 · first reported August 18, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029964 July 14, 2025 Informal State Violation/Reminder Notice Other or unclassified · Unaddressed by formal action
Public Notification Violation without NPDWR ViolationViolation 4001124 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start March 31, 2025 · first reported May 15, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029963 April 28, 2025 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 4001122 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2025 · period end April 6, 2025 · first reported February 18, 2025 · EPA return-to-compliance field April 6, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029959 January 3, 2025 Informal State Violation/Reminder Notice 4029960 January 3, 2025 Informal State Public Notification requested 4029962 April 6, 2025 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Public Notification Violation without NPDWR ViolationViolation 4001123 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 31, 2024 · first reported May 15, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029961 February 19, 2025 Informal State Violation/Reminder Notice Other or unclassified · Unaddressed by formal action
Public Notification Violation without NPDWR ViolationViolation 4001121 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 1, 2024 · first reported November 14, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029958 October 16, 2024 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 4001117 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2022 · period end June 20, 2024 · first reported February 23, 2022 · EPA return-to-compliance field June 20, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029946 January 11, 2022 Informal State Violation/Reminder Notice 4029947 January 11, 2022 Informal State Public Notification requested 4029957 June 20, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 4001112 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 9, 2020 · period end December 10, 2020 · first reported February 16, 2021 · EPA return-to-compliance field December 10, 2020
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4029933 December 10, 2020 Informal State Violation/Reminder Notice 4029934 December 10, 2020 Informal State Public Notification requested 4029935 December 10, 2020 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