AZ0408333 · Arizona

RIO VISTA RANCHES

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

Violation records shown: 19
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 11

Counties listed by EPA · Mohave County, Arizona

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 19 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 119 days. The interval uses the reporting periods and dates on file.

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5306 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start August 2, 2025 · period end October 23, 2025 · first reported February 24, 2026 · EPA return-to-compliance field October 23, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2021 September 23, 2025 Informal State Violation/Reminder Notice
2032 October 23, 2025 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5305 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 30, 2025 · period end October 23, 2025 · first reported February 24, 2026 · EPA return-to-compliance field October 23, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2018 September 2, 2025 Informal State Violation/Reminder Notice
2030 October 23, 2025 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 5307 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2025 · period end October 15, 2025 · first reported November 17, 2025 · EPA return-to-compliance field October 15, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2024 October 15, 2025 Informal State Violation/Reminder Notice
2025 October 15, 2025 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5301 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start December 20, 2024 · period end March 28, 2025 · first reported February 18, 2025 · EPA return-to-compliance field March 28, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2013 January 27, 2025 Informal State Violation/Reminder Notice
2016 March 28, 2025 Resolving State Compliance achieved
Monitoring or reporting · Resolved
LSL ReportingViolation 5298 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start October 17, 2024 · period end July 7, 2025 · first reported February 18, 2025 · EPA return-to-compliance field July 7, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2007 November 7, 2024 Informal State Violation/Reminder Notice
2015 July 7, 2025 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2021	September 23, 2025	Informal	State Violation/Reminder Notice
2032	October 23, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2018	September 2, 2025	Informal	State Violation/Reminder Notice
2030	October 23, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2024	October 15, 2025	Informal	State Violation/Reminder Notice
2025	October 15, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2013	January 27, 2025	Informal	State Violation/Reminder Notice
2016	March 28, 2025	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2007	November 7, 2024	Informal	State Violation/Reminder Notice
2015	July 7, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

LSL InventoryViolation 5297 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end July 7, 2025 · first reported February 18, 2025 · EPA return-to-compliance field July 7, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2004	November 7, 2024	Informal	State Violation/Reminder Notice
2005	November 7, 2024	Informal	State Public Notification requested
2015	July 7, 2025	Resolving	State Compliance achieved
2017	July 24, 2025	Informal	State Public Notification received

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 5296 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 2, 2024 · period end October 7, 2025 · first reported February 24, 2026 · EPA return-to-compliance field October 7, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
2002 October 21, 2024 Informal State Violation/Reminder Notice
2023 October 7, 2025 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2002	October 21, 2024	Informal	State Violation/Reminder Notice
2023	October 7, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 5295 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2024 · period end July 31, 2024 · first reported February 24, 2026 · EPA return-to-compliance field July 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1998	August 27, 2024	Informal	State Violation/Reminder Notice
1999	August 27, 2024	Informal	State Public Notification requested
2001	September 13, 2024	Resolving	State Compliance achieved
2033	November 27, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 5294 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2024 · period end June 30, 2024 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1994	July 29, 2024	Informal	State Violation/Reminder Notice
1995	July 29, 2024	Informal	State Public Notification requested
2001	September 13, 2024	Resolving	State Compliance achieved
2031	November 27, 2025	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5291 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start January 2, 2024 · period end October 23, 2025 · first reported May 15, 2024 · EPA return-to-compliance field October 23, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1984 February 16, 2024 Informal State Violation/Reminder Notice
2027 October 23, 2025 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1984	February 16, 2024	Informal	State Violation/Reminder Notice
2027	October 23, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5300 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2010	November 18, 2024	Informal	State Violation/Reminder Notice
2011	November 18, 2024	Informal	State Public Notification requested
2020	September 10, 2025	Resolving	State Compliance achieved
2029	October 27, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 5299 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2010	November 18, 2024	Informal	State Violation/Reminder Notice
2011	November 18, 2024	Informal	State Public Notification requested
2020	September 10, 2025	Resolving	State Compliance achieved
2029	October 27, 2025	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 5290 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start December 13, 2023 · period end April 10, 2024 · first reported February 24, 2026 · EPA return-to-compliance field April 10, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1982 January 19, 2024 Informal State Violation/Reminder Notice
1989 April 10, 2024 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5285 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1969 July 19, 2023 Informal State Violation/Reminder Notice
1975 July 19, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5288 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2023 · period end November 14, 2023 · first reported February 24, 2026 · EPA return-to-compliance field November 14, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1976 November 14, 2023 Informal State Violation/Reminder Notice
1978 November 14, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5287 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2023 · period end November 14, 2023 · first reported February 24, 2026 · EPA return-to-compliance field November 14, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1976 November 14, 2023 Informal State Violation/Reminder Notice
1978 November 14, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 5283 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported February 24, 2026 · 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
1961 May 9, 2023 Informal State Violation/Reminder Notice
1967 May 9, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1982	January 19, 2024	Informal	State Violation/Reminder Notice
1989	April 10, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1969	July 19, 2023	Informal	State Violation/Reminder Notice
1975	July 19, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1976	November 14, 2023	Informal	State Violation/Reminder Notice
1978	November 14, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1976	November 14, 2023	Informal	State Violation/Reminder Notice
1978	November 14, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1961	May 9, 2023	Informal	State Violation/Reminder Notice
1967	May 9, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 5280 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start December 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1958	January 27, 2023	Informal	State Violation/Reminder Notice
1959	January 27, 2023	Informal	State Public Notification requested
1968	May 19, 2023	Resolving	State Compliance achieved
2028	October 27, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 5279 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2022 · period end October 12, 2023 · first reported February 15, 2023 · EPA return-to-compliance field October 12, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1955	December 12, 2022	Informal	State Violation/Reminder Notice
1956	December 12, 2022	Informal	State Public Notification requested
1997	October 12, 2023	Resolving	State Compliance achieved
1990	April 10, 2024	Informal	State Public Notification received

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