WA5387140 · Washington
TAMOSHAN
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 11
- EPA health-based flag
- 8
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 3
Counties listed by EPA · Thurston 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 11 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 3236913 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start June 1, 2025 · period end June 30, 2025 · first reported September 12, 2025 · EPA return-to-compliance field June 30, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 3236913ENF July 14, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 3027553 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported September 28, 2023 · EPA return-to-compliance field June 30, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31607 December 2, 2021 Formal State Administrative/Compliance Order without penalty issued 3027553ENF September 19, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 3027551 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported September 28, 2023 · EPA return-to-compliance field March 31, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31607 December 2, 2021 Formal State Administrative/Compliance Order without penalty issued 3027553ENF September 19, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 3027550 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported September 28, 2023 · EPA return-to-compliance field December 31, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31607 December 2, 2021 Formal State Administrative/Compliance Order without penalty issued 3027553ENF September 19, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 3027549 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported September 28, 2023 · EPA return-to-compliance field September 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31607 December 2, 2021 Formal State Administrative/Compliance Order without penalty issued 3027553ENF September 19, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2860815 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start April 1, 2022 · period end June 30, 2022 · first reported September 28, 2022 · EPA return-to-compliance field June 30, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31607 December 2, 2021 Formal State Administrative/Compliance Order without penalty issued 3027553ENF September 19, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2822458 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2022 · period end March 31, 2022 · first reported June 28, 2022 · EPA return-to-compliance field March 31, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31607 December 2, 2021 Formal State Administrative/Compliance Order without penalty issued 3027553ENF September 19, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 2765522 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start December 1, 2021 · period end December 31, 2021 · first reported March 29, 2022 · EPA return-to-compliance field December 31, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2765522ENF January 20, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 2760342 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start November 1, 2021 · period end November 30, 2021 · first reported March 29, 2022 · EPA return-to-compliance field November 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2765522ENF January 20, 2022 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2802728 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2021 · period end December 31, 2021 · first reported March 29, 2022 · EPA return-to-compliance field December 31, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31607 December 2, 2021 Formal State Administrative/Compliance Order without penalty issued 3027553ENF September 19, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2765761 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 31607 December 2, 2021 Formal State Administrative/Compliance Order without penalty issued 3027553ENF September 19, 2023 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