ID2310007 · Idaho
WINCHESTER WATER DEPT
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 21
- EPA health-based flag
- 2
- Health-based records unresolved in this snapshot
- 2
- Monitoring and reporting records
- 19
Counties listed by EPA · Lewis County, Idaho
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 15 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.
EPA health-based flag · Unaddressed by formal action
Failure To Address DeficiencyViolation 9381 · Groundwater Rule · Ground Water RuleNoncompliance period start May 30, 2026 · first reported September 28, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365362 June 25, 2026 Informal State Violation/Reminder Notice 365363 June 28, 2026 Informal State Public Notification requested EPA health-based flag · Unaddressed by formal action
Failure To Address DeficiencyViolation 9380 · Groundwater Rule · Ground Water RuleNoncompliance period start May 30, 2026 · first reported September 28, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365360 June 25, 2026 Informal State Violation/Reminder Notice 365361 June 28, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 9377 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2024 · period end February 3, 2025 · first reported March 21, 2025 · EPA return-to-compliance field February 3, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365357 January 16, 2025 Informal State Violation/Reminder Notice 365358 January 19, 2025 Informal State Public Notification requested 365359 February 3, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9372 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2022 · period end December 31, 2022 · first reported June 6, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365353 May 8, 2023 Informal State Violation/Reminder Notice 365354 May 11, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9369 · Nitrite · Nitrate RuleNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365341 February 22, 2023 Informal State Violation/Reminder Notice 365342 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9365 · Fluoride · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365339 February 22, 2023 Informal State Violation/Reminder Notice 365340 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9363 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365337 February 22, 2023 Informal State Violation/Reminder Notice 365338 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9361 · Selenium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9360 · Thallium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9359 · Beryllium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9358 · Antimony, Total · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9357 · Nickel · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9356 · Mercury · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9355 · Chromium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9354 · Cadmium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 9353 · Barium · Inorganic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 17, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365335 February 22, 2023 Informal State Violation/Reminder Notice 365336 February 25, 2023 Informal State Public Notification requested 365356 August 22, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 9314 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2020 · period end May 23, 2023 · first reported May 19, 2020 · EPA return-to-compliance field May 23, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 365330 February 21, 2020 Informal State Violation/Reminder Notice 365331 February 24, 2020 Informal State Public Notification requested 365355 May 23, 2023 Resolving State Compliance achieved Monitoring or reporting · Archived
Monitoring, RegularViolation 9376 · Combined Uranium · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2022 · first reported June 6, 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 365351 May 10, 2023 Informal State Violation/Reminder Notice 365352 May 13, 2023 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 9375 · Radium-228 · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2022 · first reported June 6, 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 365349 May 10, 2023 Informal State Violation/Reminder Notice 365350 May 13, 2023 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 9374 · Radium-226 · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2022 · first reported June 6, 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 365347 May 10, 2023 Informal State Violation/Reminder Notice 365348 May 13, 2023 Informal State Public Notification requested Monitoring or reporting · Archived
Monitoring, RegularViolation 9373 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2017 · period end December 31, 2022 · first reported June 6, 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 365345 May 10, 2023 Informal State Violation/Reminder Notice 365346 May 13, 2023 Informal State Public Notification requested
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