CA2800525 · California
LA TIERRA HEIGHTS MUTUAL
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 5
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 4
Counties listed by EPA · Napa County, California
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 468.5 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
LSL ReportingViolation 1458055 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end May 21, 2026 · first reported April 1, 2025 · EPA return-to-compliance field May 21, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9999900000000000001 January 29, 2026 Formal Federal Final Administrative Order issued 9999900000000000002 May 21, 2026 Resolving Federal Compliance achieved EPA health-based flag · Resolved
LSL InventoryViolation 1458054 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end May 21, 2026 · first reported April 1, 2025 · EPA return-to-compliance field May 21, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9999900000000000001 January 29, 2026 Formal Federal Final Administrative Order issued 9999900000000000002 May 21, 2026 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 1458052 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 16, 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 1458053 January 31, 2023 Informal State Formal Notice of Violation issued 1458054 November 27, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 1458049 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start July 1, 2020 · period end June 22, 2021 · first reported November 13, 2020 · EPA return-to-compliance field June 22, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1458051 September 7, 2020 Resolving State Compliance achieved 1458050 November 12, 2020 Formal State Administrative/Compliance Order without penalty issued 1458052 June 22, 2021 Resolving State Compliance achieved Monitoring or reporting · Unaddressed by formal action
Initial Tap Sampling for Pb and CuViolation 95V0001 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start July 1, 1993 · first reported December 12, 1995
No linked action row appears in the records shown.
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