WA5392470 · Washington
WALLA WALLA UNIVERSITY
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 25
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 24
Counties listed by EPA · Walla Walla 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 25 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,095 days. The interval uses the reporting periods and dates on file.
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 2566914 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · period end September 26, 2025 · first reported December 11, 2025 · EPA return-to-compliance field September 26, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 66914ENF September 26, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2789072 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2022 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2789072ENF July 5, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2789071 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2022 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2789071ENF July 5, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452959 · Chlordane · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452306 · Benzo(a)pyrene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452274 · HEXACHLOROBENZENE · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452067 · Heptachlor epoxide · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452065 · Heptachlor · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452051 · LASSO · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452050 · Atrazine · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452042 · Hexachlorocyclopentadiene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452039 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452037 · Simazine · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452035 · Di(2-ethylhexyl) adipate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452020 · Toxaphene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452015 · Methoxychlor · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452010 · BHC-GAMMA · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607452005 · Endrin · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860745ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607442946 · ETHYLENE DIBROMIDE · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860744ENF September 3, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607442931 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860744ENF September 3, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607432326 · Pentachlorophenol · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860743ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607432110 · 2,4,5-TP · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860743ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607432041 · Dinoseb · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860743ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607432040 · Picloram · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860743ENF August 5, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 22607432031 · Dalapon · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 31, 2023 · EPA return-to-compliance field December 31, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2860743ENF August 5, 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