CO0130001 · Colorado

ARVADA CITY OF

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

Violation records shown: 4
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 4

Counties listed by EPA · Jefferson 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 4 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.

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 203 · 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 28, 2024 · first reported November 14, 2024 · EPA return-to-compliance field June 28, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
18	June 28, 2024	Informal	State Violation/Reminder Notice
19	June 28, 2024	Informal	State Public Notification requested
24	June 28, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 202 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
16	June 28, 2024	Informal	State Violation/Reminder Notice
17	June 28, 2024	Informal	State Public Notification requested
23	June 28, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 199 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start March 1, 2024 · period end March 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field March 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
12	April 15, 2024	Informal	State Violation/Reminder Notice
13	April 15, 2024	Informal	State Public Notification requested
15	April 23, 2024	Resolving	State Compliance achieved
14	May 8, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 198 · Surface Water Treatment Rule · 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
10	March 14, 2024	Informal	State Violation/Reminder Notice
11	March 14, 2024	Informal	State Public Notification requested
15	April 23, 2024	Resolving	State Compliance achieved
14	May 8, 2024	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