CA5400665 · California

DEL ORO RIVER ISLAND SERV TERR #1

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

Violation records shown: 32
EPA health-based flag: 32
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 0

Counties listed by EPA · Tulare 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

EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900069 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported June 22, 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
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 9900068 · Combined Uranium · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported June 22, 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
9900283	November 16, 2017	Formal	State Administrative/Compliance Order without penalty issued
9900291	October 17, 2025	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900067 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported June 22, 2026 · 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
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900066 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported June 22, 2026 · 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
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900065 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start October 1, 2024 · period end December 31, 2024 · first reported June 22, 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
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900064 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported June 22, 2026 · 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
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900053 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 15, 2024 · EPA return-to-compliance field June 30, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 9900031 · Nitrate · Nitrate Rule

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
9900286	August 21, 2023	Formal	State Administrative/Compliance Order without penalty issued
9900289	July 15, 2024	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900052 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported August 15, 2024 · EPA return-to-compliance field March 31, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900051 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported August 15, 2024 · EPA return-to-compliance field December 31, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, Single SampleViolation 9900029 · Nitrate · Nitrate Rule
Noncompliance period start August 1, 2023 · period end August 31, 2023 · first reported October 2, 2023 · EPA return-to-compliance field August 31, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900286 August 21, 2023 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900050 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported August 15, 2024 · EPA return-to-compliance field September 30, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, Single SampleViolation 9900028 · Nitrate · Nitrate Rule
Noncompliance period start July 1, 2023 · period end July 31, 2023 · first reported October 2, 2023 · EPA return-to-compliance field July 31, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900286 August 21, 2023 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, Single SampleViolation 9900027 · Nitrate · Nitrate Rule
Noncompliance period start June 1, 2023 · period end June 30, 2023 · first reported October 2, 2023 · EPA return-to-compliance field June 30, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900286 August 21, 2023 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900049 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 15, 2024 · EPA return-to-compliance field June 30, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900048 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported August 15, 2024 · EPA return-to-compliance field March 31, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900047 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported August 15, 2024 · EPA return-to-compliance field December 31, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900046 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported August 15, 2024 · EPA return-to-compliance field September 30, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900045 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 15, 2024 · EPA return-to-compliance field June 30, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900044 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported August 15, 2024 · EPA return-to-compliance field March 31, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900043 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported August 15, 2024 · 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
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900042 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported August 15, 2024 · 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
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900041 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 15, 2024 · EPA return-to-compliance field June 30, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900040 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 15, 2024 · EPA return-to-compliance field March 31, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900039 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported August 15, 2024 · EPA return-to-compliance field December 31, 2020

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900038 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start July 1, 2020 · period end September 30, 2020 · first reported August 15, 2024 · EPA return-to-compliance field September 30, 2020

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900037 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start April 1, 2020 · period end June 30, 2020 · first reported August 15, 2024 · EPA return-to-compliance field June 30, 2020

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900036 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2020 · period end March 31, 2020 · first reported August 15, 2024 · EPA return-to-compliance field March 31, 2020

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900035 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start October 1, 2019 · period end December 31, 2019 · first reported August 15, 2024 · EPA return-to-compliance field December 31, 2019

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900034 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start July 1, 2019 · period end September 30, 2019 · first reported August 15, 2024 · EPA return-to-compliance field September 30, 2019

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900033 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start April 1, 2019 · period end June 30, 2019 · first reported August 15, 2024 · EPA return-to-compliance field June 30, 2019

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 Formal State Administrative/Compliance Order without penalty issued
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 9900032 · Combined Uranium · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2019 · period end March 31, 2019 · first reported August 15, 2024 · EPA return-to-compliance field March 31, 2019

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
9900283 November 16, 2017 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