090605019 · California
Santa Rosa Reservation
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 16
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 16
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 16 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 364 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 0605019031005102022 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported June 30, 2023 · 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 0605019OX03202311430 March 20, 2023 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903100542021 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported June 30, 2023 · 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 0605019OX09092110938 September 9, 2021 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (IDSE)Violation 060501930295012021 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 28, 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 0605019OX08292412107 August 29, 2024 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (IDSE)Violation 060501930245612021 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2021 · period end December 31, 2023 · first reported March 28, 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 0605019OX08292412107 August 29, 2024 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903104012021 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported June 30, 2023 · 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 0605019OX04052211057 April 5, 2022 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903100572020 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2020 · period end September 30, 2020 · first reported June 30, 2023 · 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 0605019OX11172010452 November 17, 2020 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903100572019 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2019 · period end September 30, 2019 · first reported June 30, 2023 · 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 0605019OX12051996930 December 5, 2019 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903100512019 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2019 · period end March 31, 2019 · first reported June 30, 2023 · 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 0605019OX08271995953 August 27, 2019 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903100542018 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2018 · period end June 30, 2018 · first reported June 30, 2023 · EPA return-to-compliance field June 30, 2018
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0605019OX08271995952 August 27, 2019 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903104012016 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2016 · period end December 31, 2016 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2016
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0605019OX12221790930 December 22, 2017 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 060501927295012014 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2014 · period end December 31, 2016 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2016
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0605019OX11201789690 November 20, 2017 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 060501927245612014 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2014 · period end December 31, 2016 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2016
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0605019OX11201789691 November 20, 2017 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903104012014 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2014 · period end December 31, 2014 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2014
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0605019OX05201684426 May 20, 2016 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 0605019350600102013 · Stage 2 Disinfectants and Disinfection Byproducts Rule · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2013 · period end September 6, 2017 · first reported June 30, 2023 · EPA return-to-compliance field September 6, 2017
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0605019OX09061788618 September 6, 2017 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903400012004 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2004 · period end December 31, 2004 · first reported March 28, 2024 · EPA return-to-compliance field December 31, 2004
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0605019OX01211043588 January 21, 2010 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 060501903400012001 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2001 · period end December 31, 2001 · first reported March 28, 2024 · EPA return-to-compliance field December 31, 2001
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0605019OX01211043773 January 21, 2010 Resolving Federal Compliance achieved
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