WY5600828 · Wyoming

PIONEER WATER & SEWER DISTRICT

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

Violation records shown: 6
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 4

Counties listed by EPA · Natrona 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 5 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, Routine (RTCR)Violation 205 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start November 1, 2024 · period end November 30, 2024 · first reported February 24, 2025 · EPA return-to-compliance field November 30, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
23 December 9, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Filter)Violation 204 · Surface Water Treatment Rule · Surface Water Treatment Rule
Noncompliance period start November 1, 2024 · period end November 30, 2024 · first reported February 24, 2025 · EPA return-to-compliance field November 30, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
22 January 22, 2025 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 April 1, 2022 · period end April 30, 2022 · first reported August 11, 2022 · EPA return-to-compliance field April 30, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
15 June 6, 2022 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
23	December 9, 2024	Resolving	State Compliance achieved

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

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
15	June 6, 2022	Resolving	State Compliance achieved

Other or unclassified · Addressed by formal action

Consumer Confidence Report Inadequate ReportingViolation 198 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 1, 2020 · first reported April 29, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
10	January 5, 2021	Formal	Federal Final Administrative Order issued
11	April 1, 2021	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 197 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start June 1, 2019 · period end January 8, 2021 · first reported February 11, 2020 · EPA return-to-compliance field January 8, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
10 January 5, 2021 Formal Federal Final Administrative Order issued
9 January 8, 2021 Resolving State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 196 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 1, 2015 · period end January 19, 2022 · first reported April 1, 2016 · EPA return-to-compliance field January 19, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
6	February 26, 2016	Informal	State Violation/Reminder Notice
10	January 5, 2021	Formal	Federal Final Administrative Order issued
12	January 19, 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