CA3701184 · California

BUTTERFIELD RANCH

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 13
EPA health-based flag: 4
Health-based records unresolved in this snapshot: 1
Monitoring and reporting records: 9

Counties listed by EPA · San Diego 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 11 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Unaddressed by formal action
LSL InventoryViolation 1103484 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start October 17, 2024 · first reported April 1, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Unaddressed by formal action
LSL ReportingViolation 1103485 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start October 17, 2024 · first reported April 1, 2025
No linked action row appears in the records shown.

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 1103478 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2023 · period end September 24, 2024 · first reported February 15, 2024 · EPA return-to-compliance field September 24, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104412	December 27, 2023	Formal	State Administrative/Compliance Order without penalty issued
1104418	September 24, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1103482 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2023 · period end April 30, 2023 · first reported May 15, 2024 · EPA return-to-compliance field April 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104413	June 21, 2023	Formal	State Administrative/Compliance Order without penalty issued
1104414	January 16, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1103481 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start March 1, 2023 · period end March 31, 2023 · first reported May 15, 2024 · 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
1104413	June 21, 2023	Formal	State Administrative/Compliance Order without penalty issued
1104414	January 16, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1103480 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start February 1, 2023 · period end February 28, 2023 · first reported May 15, 2024 · EPA return-to-compliance field February 28, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104413	June 21, 2023	Formal	State Administrative/Compliance Order without penalty issued
1104414	January 16, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1103479 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2023 · period end January 31, 2023 · first reported May 15, 2024 · EPA return-to-compliance field January 31, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104413	June 21, 2023	Formal	State Administrative/Compliance Order without penalty issued
1104414	January 16, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1103476 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2022 · period end August 31, 2022 · first reported November 17, 2022 · EPA return-to-compliance field August 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104411	September 26, 2022	Resolving	State Compliance achieved
1104410	October 5, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, E. coli (RTCR)Violation 1103475 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2022 · period end July 31, 2022 · first reported November 17, 2022 · EPA return-to-compliance field July 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104411	September 26, 2022	Resolving	State Compliance achieved
1104410	October 5, 2022	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Resolved

Monitoring, Source Water (GWR)Violation 1103474 · E. COLI · Ground Water Rule

Noncompliance period start July 1, 2022 · period end September 26, 2022 · first reported November 17, 2022 · EPA return-to-compliance field September 26, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104411	September 26, 2022	Resolving	State Compliance achieved
1104410	October 5, 2022	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Resolved

Monitoring, Source Water (GWR)Violation 1103472 · E. COLI · Ground Water Rule

Noncompliance period start June 1, 2022 · period end September 26, 2022 · first reported November 17, 2022 · EPA return-to-compliance field September 26, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104411	September 26, 2022	Resolving	State Compliance achieved
1104410	October 5, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, E. coli (RTCR)Violation 1103471 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2022 · period end June 30, 2022 · first reported November 17, 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
1104411	September 26, 2022	Resolving	State Compliance achieved
1104410	October 5, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, E. coli (RTCR)Violation 1103473 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2022 · period end May 31, 2022 · first reported November 17, 2022 · EPA return-to-compliance field May 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1104411	September 26, 2022	Resolving	State Compliance achieved
1104410	October 5, 2022	Formal	State Administrative/Compliance Order without penalty issued

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