090400071 · Arizona
Cocopah West
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 19
- EPA health-based flag
- 2
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 15
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 212 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 04000714B800022026 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start February 1, 2026 · period end April 28, 2026 · first reported June 3, 2026 · EPA return-to-compliance field April 28, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX04282612542 April 28, 2026 Resolving Federal Compliance achieved 0400071IA06252612562 June 25, 2026 Informal Federal Violation/Reminder Notice 0400071IA06252612570 June 25, 2026 Informal Federal Violation/Reminder Notice Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 04000714B800052025 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2025 · period end June 23, 2025 · first reported September 23, 2025 · EPA return-to-compliance field June 23, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX06232512233 June 23, 2025 Resolving Federal Compliance achieved 0400071IA09162512236 September 16, 2025 Informal Federal Violation/Reminder Notice 0400071IA09162512251 September 16, 2025 Informal Federal Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007103400012020 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2020 · period end December 31, 2025 · first reported March 18, 2026 · EPA return-to-compliance field December 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX02182612456 February 18, 2026 Resolving Federal Compliance achieved 0400071IA04012612507 April 1, 2026 Informal Federal Violation/Reminder Notice Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 04000717575001220141 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 1, 2014 · period end July 1, 2015 · first reported June 30, 2023 · EPA return-to-compliance field July 1, 2015
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX07011579232 July 1, 2015 Resolving Federal Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 04000717575001220140 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 1, 2014 · period end July 1, 2015 · first reported June 30, 2023 · EPA return-to-compliance field July 1, 2015
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX07011579231 July 1, 2015 Resolving Federal Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 04000714507001220141 · Groundwater Rule · Ground Water RuleNoncompliance period start December 1, 2014 · period end July 1, 2015 · first reported June 30, 2023 · EPA return-to-compliance field July 1, 2015
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX07011581646 July 1, 2015 Resolving Federal Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 04000714507001220140 · Groundwater Rule · Ground Water RuleNoncompliance period start December 1, 2014 · period end July 1, 2015 · first reported June 30, 2023 · EPA return-to-compliance field July 1, 2015
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX07011581645 July 1, 2015 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine Major (TCR)Violation 0400071233100112013 · Coliform (TCR) · Total Coliform RuleNoncompliance period start November 1, 2013 · period end November 30, 2013 · first reported June 30, 2023 · EPA return-to-compliance field November 30, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX12111374901 December 11, 2013 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine Major (TCR)Violation 040007123310092013 · Coliform (TCR) · Total Coliform RuleNoncompliance period start September 1, 2013 · period end September 30, 2013 · first reported June 30, 2023 · EPA return-to-compliance field September 30, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX11261373901 November 26, 2013 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine Minor (TCR)Violation 040007124310092012 · Coliform (TCR) · Total Coliform RuleNoncompliance period start September 1, 2012 · period end September 30, 2012 · first reported June 30, 2023 · EPA return-to-compliance field September 30, 2012
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX10171271545 October 17, 2012 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine Minor (TCR)Violation 040007124310062012 · Coliform (TCR) · Total Coliform RuleNoncompliance period start June 1, 2012 · period end June 30, 2012 · first reported June 30, 2023 · EPA return-to-compliance field June 30, 2012
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX10171271544 October 17, 2012 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine Minor (TCR)Violation 040007124310052012 · Coliform (TCR) · Total Coliform RuleNoncompliance period start May 1, 2012 · period end May 31, 2012 · first reported June 30, 2023 · EPA return-to-compliance field May 31, 2012
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX10171271543 October 17, 2012 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine Minor (TCR)Violation 040007124310042012 · Coliform (TCR) · Total Coliform RuleNoncompliance period start April 1, 2012 · period end April 30, 2012 · first reported June 30, 2023 · EPA return-to-compliance field April 30, 2012
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX10171271542 October 17, 2012 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 040007152500012011 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start January 1, 2011 · period end February 20, 2014 · first reported June 30, 2023 · EPA return-to-compliance field February 20, 2014
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX02201474904 February 20, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 040007127295012010 · TTHM · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2010 · period end December 31, 2010 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2010
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX04141162706 April 14, 2011 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 040007127245612010 · Total Haloacetic Acids (HAA5) · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2010 · period end December 31, 2010 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2010
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX04141162707 April 14, 2011 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 040007127295012009 · TTHM · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2009 · period end December 31, 2009 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2009
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX03311048610 March 31, 2010 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 040007127245612009 · Total Haloacetic Acids (HAA5) · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2009 · period end December 31, 2009 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2009
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX03311048611 March 31, 2010 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007103104012009 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2009 · period end December 31, 2009 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2009
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400071OX03311048609 March 31, 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