CA3600123 · California
HI DESERT MWC
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 13
- EPA health-based flag
- 8
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 3
Counties listed by EPA · San Bernardino 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 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 645 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 1500029 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2026 · period end June 30, 2026 · first reported September 22, 2026 · EPA return-to-compliance field June 30, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500163 July 3, 2023 Formal State Administrative/Compliance Order without penalty issued EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 1500026 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500171 November 25, 2025 Formal State Administrative/Compliance Order without penalty issued EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 1500022 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported March 20, 2026 · EPA return-to-compliance field September 30, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500163 July 3, 2023 Formal State Administrative/Compliance Order without penalty issued 1500171 November 25, 2025 Formal State Administrative/Compliance Order without penalty issued Other or unclassified · Addressed by formal action
Consumer Confidence Report Complete Failure to ReportViolation 1500021 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · first reported March 20, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500168 October 22, 2025 Formal State Administrative/Compliance Order without penalty issued EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 1500020 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2025 · period end June 30, 2025 · first reported September 19, 2025 · EPA return-to-compliance field June 30, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500163 July 3, 2023 Formal State Administrative/Compliance Order without penalty issued EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 1500018 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2025 · period end March 31, 2025 · first reported June 3, 2025 · EPA return-to-compliance field March 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500163 July 3, 2023 Formal State Administrative/Compliance Order without penalty issued Monitoring or reporting · Resolved
LSL ReportingViolation 1500017 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end July 24, 2026 · first reported April 1, 2025 · EPA return-to-compliance field July 24, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9999900000000000001 April 20, 2026 Formal Federal Final Administrative Order issued 9999900000000000002 July 24, 2026 Resolving Federal Compliance achieved EPA health-based flag · Resolved
LSL InventoryViolation 1500016 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · period end July 24, 2026 · first reported April 1, 2025 · EPA return-to-compliance field July 24, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 9999900000000000001 April 20, 2026 Formal Federal Final Administrative Order issued 9999900000000000002 July 24, 2026 Resolving Federal Compliance achieved EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 1500015 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2024 · period end December 31, 2024 · first reported February 24, 2025 · 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 1500163 July 3, 2023 Formal State Administrative/Compliance Order without penalty issued EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 1500013 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2024 · period end September 30, 2024 · first reported November 15, 2024 · EPA return-to-compliance field September 30, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500163 July 3, 2023 Formal State Administrative/Compliance Order without penalty issued Monitoring or reporting · Addressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 1500024 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2023 · first reported March 20, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500169 November 19, 2025 Formal State Administrative/Compliance Order without penalty issued Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 1500011 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2023 · period end July 29, 2025 · first reported February 15, 2024 · EPA return-to-compliance field July 29, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500162 February 22, 2024 Formal State Administrative/Compliance Order without penalty issued 1500166 July 29, 2025 Resolving State Compliance achieved Monitoring or reporting · Addressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 1500010 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2021 · first reported February 16, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1500161 November 16, 2021 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