WY5601733 · Wyoming

OAKLEY WATER, LLC

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

Violation records shown: 29
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 29

Counties listed by EPA · Lincoln County, Wyoming

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

Violations and what followed

Among 29 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Initial Tap Sampling for Pb and CuViolation 29 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2025 · period end November 24, 2025 · first reported June 24, 2025 · EPA return-to-compliance field November 24, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
73	November 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 25 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported November 21, 2024 · EPA return-to-compliance field August 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 24 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported November 21, 2024 · EPA return-to-compliance field August 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 26 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start July 1, 2024 · period end July 31, 2024 · first reported November 21, 2024 · EPA return-to-compliance field July 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
52	August 16, 2024	Informal	State Violation/Reminder Notice
53	August 16, 2024	Informal	State Public Notification requested
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 23 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2024 · period end July 31, 2024 · first reported November 21, 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
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Initial Tap Sampling for Pb and CuViolation 22 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start July 1, 2024 · period end November 24, 2025 · first reported November 21, 2024 · EPA return-to-compliance field November 24, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
73	November 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 20 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start June 1, 2024 · period end June 30, 2024 · first reported September 24, 2024 · EPA return-to-compliance field June 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 19 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2024 · period end June 30, 2024 · first reported September 24, 2024 · EPA return-to-compliance field June 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 21 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start May 1, 2024 · period end May 31, 2024 · first reported September 24, 2024 · EPA return-to-compliance field May 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 18 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2024 · period end May 31, 2024 · first reported September 24, 2024 · EPA return-to-compliance field May 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 17 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2024 · period end April 30, 2024 · first reported September 24, 2024 · EPA return-to-compliance field April 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 16 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start April 1, 2024 · period end April 30, 2024 · first reported September 24, 2024 · EPA return-to-compliance field April 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 15 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start March 1, 2024 · period end March 31, 2024 · first reported June 27, 2024 · EPA return-to-compliance field March 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 14 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start March 1, 2024 · period end March 31, 2024 · first reported June 27, 2024 · EPA return-to-compliance field March 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 13 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start February 1, 2024 · period end February 29, 2024 · first reported June 27, 2024 · EPA return-to-compliance field February 29, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 12 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start February 1, 2024 · period end February 29, 2024 · first reported June 27, 2024 · EPA return-to-compliance field February 29, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Initial Tap Sampling for Pb and CuViolation 7 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2024 · period end November 24, 2025 · first reported June 27, 2024 · EPA return-to-compliance field November 24, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
73	November 24, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 28 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported December 18, 2024 · EPA return-to-compliance field December 31, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
72 July 22, 2025 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 27 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported December 18, 2024 · EPA return-to-compliance field December 31, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
72 July 22, 2025 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
72	July 22, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
72	July 22, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 11 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start January 1, 2024 · period end January 31, 2024 · first reported June 27, 2024 · EPA return-to-compliance field January 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 10 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2024 · period end January 31, 2024 · first reported June 27, 2024 · EPA return-to-compliance field January 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 9 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start December 1, 2023 · period end December 31, 2023 · first reported March 28, 2024 · EPA return-to-compliance field December 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 8 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start December 1, 2023 · period end December 31, 2023 · first reported February 22, 2024 · EPA return-to-compliance field December 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 6 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2023 · period end November 30, 2023 · first reported February 22, 2024 · EPA return-to-compliance field November 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 5 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start November 1, 2023 · period end November 30, 2023 · first reported February 22, 2024 · EPA return-to-compliance field November 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 1, 2023 · period end October 31, 2023 · first reported February 22, 2024 · EPA return-to-compliance field October 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 3 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start October 1, 2023 · period end October 31, 2023 · first reported February 22, 2024 · EPA return-to-compliance field October 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 2 · Revised Total Coliform Rule · Revised Total Coliform 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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
54	September 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start September 1, 2023 · period end September 30, 2023 · first reported December 19, 2023 · EPA return-to-compliance field September 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
55	September 18, 2024	Formal	Federal Final Administrative Order issued
51	October 7, 2024	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