CO0118040 · Colorado

PARKER WSD

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

Violation records shown: 7
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 6

Counties listed by EPA · Douglas 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 6 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 36 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Notification, Known or Potential LSLViolation 4020449 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start July 2, 2025 · period end November 26, 2025 · first reported November 17, 2025 · EPA return-to-compliance field November 26, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4032487	August 20, 2025	Informal	State Violation/Reminder Notice
4032488	August 20, 2025	Informal	State Public Notification requested
4032489	November 26, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 4020428 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2024 · period end July 31, 2024 · first reported August 14, 2024 · EPA return-to-compliance field July 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4032484	August 5, 2024	Informal	State Violation/Reminder Notice
4032485	August 5, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4020427 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2024 · period end July 31, 2024 · first reported August 14, 2024 · EPA return-to-compliance field July 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4032484	August 5, 2024	Informal	State Violation/Reminder Notice
4032485	August 5, 2024	Informal	State Public Notification requested
4032486	August 28, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Source Water (LT2)Violation 4020421 · E. COLI · Long Term 2 Enhanced Surface Water Treatment Rule

Noncompliance period start February 1, 2024 · period end February 29, 2024 · first reported May 16, 2024 · EPA return-to-compliance field February 29, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4032483	March 1, 2024	Resolving	State Compliance achieved
4032481	March 26, 2024	Informal	State Violation/Reminder Notice
4032482	March 26, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 4020413 · Surface Water Treatment Rule · Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4032477	October 17, 2023	Informal	State Violation/Reminder Notice
4032478	October 17, 2023	Informal	State Public Notification requested
4032479	October 18, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 4020277 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2022 · period end August 12, 2022 · first reported August 15, 2022 · EPA return-to-compliance field August 12, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4032474	July 27, 2022	Informal	State Violation/Reminder Notice
4032475	July 27, 2022	Informal	State Public Notification requested
4032476	August 12, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Water Quality Parameter M/RViolation 4020276 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start July 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
4032472	February 11, 2022	Informal	State Violation/Reminder Notice
4032473	February 11, 2022	Informal	State Public Notification requested
4032480	December 31, 2022	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