WA5324885 · Washington

PIONEER WATER COMPANY

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

Violation records shown: 24
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 22

Counties listed by EPA · Spokane County, Washington

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 167.5 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 3305905 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported June 19, 2026 · EPA return-to-compliance field January 31, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3305905ENF February 17, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 2464871 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2024 · period end February 26, 2025 · first reported March 28, 2025 · EPA return-to-compliance field February 26, 2025

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
64871ENF February 26, 2025 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3305905ENF	February 17, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
64871ENF	February 26, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2476068 · Nitrate · Nitrate Rule

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 28, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34540	September 4, 2025	Formal	State Administrative/Compliance Order without penalty issued
3076068ENF	September 29, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 2158473 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2021 · period end October 4, 2021 · first reported September 28, 2022 · EPA return-to-compliance field October 4, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
58473ENF October 4, 2021 Resolving State Compliance achieved
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702996 · Styrene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702992 · Ethylbenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702991 · Toluene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702990 · Benzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702989 · CHLOROBENZENE · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702987 · Tetrachloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702985 · 1,1,2-Trichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702984 · Trichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702983 · 1,2-Dichloropropane · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702982 · Carbon tetrachloride · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702981 · 1,1,1-Trichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702980 · 1,2-Dichloroethane · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702979 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702977 · 1,1-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702976 · Vinyl chloride · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702969 · p-Dichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702968 · o-Dichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702964 · DICHLOROMETHANE · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702380 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 25964702378 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals
Noncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 26, 2026 · EPA return-to-compliance field December 31, 2025
No linked action row appears in the records shown.

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
58473ENF	October 4, 2021	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