090400073 · Arizona
Cocopah East
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 23
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 23
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 23 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,095 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 04000734B800022026 · 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 0400073OX04282612542 April 28, 2026 Resolving Federal Compliance achieved 0400073IA06252612563 June 25, 2026 Informal Federal Violation/Reminder Notice 0400073IA06252612570 June 25, 2026 Informal Federal Violation/Reminder Notice Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 04000734B800052025 · 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 0400073OX06232512234 June 23, 2025 Resolving Federal Compliance achieved 0400073IA09162512236 September 16, 2025 Informal Federal Violation/Reminder Notice 0400073IA09162512252 September 16, 2025 Informal Federal Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 040007327099912024 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 5, 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 0400073OX04222411819 April 22, 2024 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 0400073270999102021 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 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 0400073OX01242210951 January 24, 2022 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303401012020 · Combined Radium (-226 and -228) · 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 0400073IA04012612507 April 1, 2026 Informal Federal Violation/Reminder Notice 0400073OX04022612509 April 2, 2026 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303400012020 · 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
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX04022612509 April 2, 2026 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine Major (TCR)Violation 0400073233100112013 · 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 0400073OX12111374902 December 11, 2013 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine Major (TCR)Violation 040007323310092013 · 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 0400073OX11261373902 November 26, 2013 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 040007352500012011 · 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 0400073OX02201474903 February 20, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303108512011 · Thallium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476384 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303107512011 · Beryllium, Total · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476394 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303107412011 · Antimony, Total · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476393 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303104512011 · Selenium · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476392 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303103512011 · Mercury · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476391 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303102512011 · Fluoride · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476390 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303102412011 · CYANIDE · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476383 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303102012011 · Chromium · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476389 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303101512011 · Cadmium · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476388 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303101012011 · Barium · Inorganic ChemicalsNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476387 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303100512011 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2011 · period end December 31, 2013 · first reported June 30, 2023 · EPA return-to-compliance field December 31, 2013
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400073OX03251476386 March 25, 2014 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 040007327295012009 · 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 0400073OX03311048702 March 31, 2010 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 040007327245612009 · 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 0400073OX03311048703 March 31, 2010 Resolving Federal Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040007303104012009 · 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 0400073OX03311048701 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