WA5334751 · Washington
KOOSKOOSKIE CABIN OWNERS INC.
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 45
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 45
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 45 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392959 · Chlordane · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392306 · Benzo(a)pyrene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392274 · HEXACHLOROBENZENE · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392067 · Heptachlor epoxide · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392065 · Heptachlor · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392051 · LASSO · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392050 · Atrazine · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392042 · Hexachlorocyclopentadiene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392039 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392037 · Simazine · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392035 · Di(2-ethylhexyl) adipate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392020 · Toxaphene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392015 · Methoxychlor · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392010 · BHC-GAMMA · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 24669392005 · Endrin · Synthetic Organic ChemicalsNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 26, 2026 · 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 3066939ENF April 6, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112959 · Chlordane · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112306 · Benzo(a)pyrene · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112274 · HEXACHLOROBENZENE · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112067 · Heptachlor epoxide · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112065 · Heptachlor · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112051 · LASSO · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112050 · Atrazine · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112042 · Hexachlorocyclopentadiene · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112039 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112037 · Simazine · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112035 · Di(2-ethylhexyl) adipate · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112020 · Toxaphene · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112015 · Methoxychlor · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112010 · BHC-GAMMA · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21510112005 · Endrin · Synthetic Organic ChemicalsNoncompliance period start October 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 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352959 · Chlordane · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352306 · Benzo(a)pyrene · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352274 · HEXACHLOROBENZENE · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352067 · Heptachlor epoxide · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352065 · Heptachlor · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352051 · LASSO · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352050 · Atrazine · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352042 · Hexachlorocyclopentadiene · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352039 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352037 · Simazine · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352035 · Di(2-ethylhexyl) adipate · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352020 · Toxaphene · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352015 · Methoxychlor · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352010 · BHC-GAMMA · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 21242352005 · Endrin · Synthetic Organic ChemicalsNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 29, 2021 · EPA return-to-compliance field September 30, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2751011ENF March 24, 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