CO0226500 · Colorado

MARBLE WC

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

Violation records shown: 84
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 83

Counties listed by EPA · Gunnison County, Colorado

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

Violations and what followed

Among 18 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 50 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 4017012 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2026 · period end June 30, 2026 · first reported September 15, 2026 · EPA return-to-compliance field June 30, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041248	July 31, 2026	Informal	State Violation/Reminder Notice
4041249	July 31, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 4017013 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported September 15, 2026 · EPA return-to-compliance field June 30, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041248	July 31, 2026	Informal	State Violation/Reminder Notice
4041249	July 31, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4017010 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end February 2, 2026 · first reported May 27, 2026 · EPA return-to-compliance field February 2, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041246	February 2, 2026	Resolving	State Compliance achieved
4041244	February 17, 2026	Informal	State Violation/Reminder Notice
4041245	February 17, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4017009 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported May 27, 2026 · EPA return-to-compliance field January 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041246	February 2, 2026	Resolving	State Compliance achieved
4041244	February 17, 2026	Informal	State Violation/Reminder Notice
4041245	February 17, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016986 · Styrene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016985 · Ethylbenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016984 · Toluene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016983 · Benzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016982 · CHLOROBENZENE · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016981 · Tetrachloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016980 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016979 · Trichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016978 · 1,2-Dichloropropane · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016977 · Carbon tetrachloride · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016976 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016975 · 1,2-Dichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016974 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016973 · 1,1-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016972 · Vinyl chloride · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016971 · p-Dichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016970 · o-Dichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016969 · DICHLOROMETHANE · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016968 · Xylenes, Total · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016967 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016966 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2025 · period end December 31, 2025 · first reported February 23, 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
4041198	January 21, 2026	Informal	State Violation/Reminder Notice
4041199	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Lead Consumer NoticeViolation 4016965 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2025 · period end June 16, 2026 · first reported February 18, 2025 · EPA return-to-compliance field June 16, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041196	January 15, 2025	Informal	State Violation/Reminder Notice
4041197	January 15, 2025	Informal	State Public Notification requested
4041247	June 16, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4016941 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported November 14, 2024 · EPA return-to-compliance field August 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041180	September 17, 2024	Informal	State Violation/Reminder Notice
4041181	September 17, 2024	Informal	State Public Notification requested
4041187	September 17, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation without NPDWR ViolationViolation 4016940 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start July 28, 2024 · period end August 16, 2024 · first reported November 14, 2024 · EPA return-to-compliance field August 16, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041178	August 15, 2024	Informal	State Violation/Reminder Notice
4041179	August 16, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4016942 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2024 · period end September 17, 2024 · first reported November 14, 2024 · EPA return-to-compliance field September 17, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041182	September 17, 2024	Informal	State Violation/Reminder Notice
4041183	September 17, 2024	Informal	State Public Notification requested
4041187	September 17, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4016933 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start March 1, 2024 · period end March 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field March 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041168	April 2, 2024	Resolving	State Compliance achieved
4041166	April 19, 2024	Informal	State Violation/Reminder Notice
4041167	April 19, 2024	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016964 · Styrene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016963 · Ethylbenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016962 · Toluene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016961 · Benzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016960 · CHLOROBENZENE · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016959 · Tetrachloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016958 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016957 · Trichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016956 · 1,2-Dichloropropane · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016955 · Carbon tetrachloride · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016954 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016953 · 1,2-Dichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016952 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016951 · 1,1-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016950 · Vinyl chloride · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016949 · p-Dichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016948 · o-Dichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016947 · DICHLOROMETHANE · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016946 · Xylenes, Total · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016945 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016944 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported February 18, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041194	January 15, 2025	Informal	State Violation/Reminder Notice
4041195	January 15, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4016934 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field March 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041168	April 2, 2024	Resolving	State Compliance achieved
4041166	April 19, 2024	Informal	State Violation/Reminder Notice
4041167	April 19, 2024	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4016931 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2023 · period end September 6, 2023 · first reported November 15, 2023 · EPA return-to-compliance field September 6, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041161	August 18, 2023	Informal	State Violation/Reminder Notice
4041162	August 18, 2023	Informal	State Public Notification requested
4041165	September 6, 2023	Resolving	State Compliance achieved
4041169	June 27, 2024	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4016930 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2023 · period end July 31, 2023 · first reported November 15, 2023 · EPA return-to-compliance field July 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041159	August 18, 2023	Informal	State Violation/Reminder Notice
4041160	August 18, 2023	Informal	State Public Notification requested
4041165	September 6, 2023	Resolving	State Compliance achieved
4041169	June 27, 2024	Informal	State Public Notification received

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017008 · Endrin · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041242	January 21, 2026	Informal	State Violation/Reminder Notice
4041243	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017007 · BHC-GAMMA · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041240	January 21, 2026	Informal	State Violation/Reminder Notice
4041241	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017006 · Methoxychlor · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041238	January 21, 2026	Informal	State Violation/Reminder Notice
4041239	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017005 · Toxaphene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041236	January 21, 2026	Informal	State Violation/Reminder Notice
4041237	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017004 · Diquat · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041234	January 21, 2026	Informal	State Violation/Reminder Notice
4041235	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017003 · Endothall · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041232	January 21, 2026	Informal	State Violation/Reminder Notice
4041233	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017002 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041230	January 21, 2026	Informal	State Violation/Reminder Notice
4041231	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017001 · OXAMYL · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041228	January 21, 2026	Informal	State Violation/Reminder Notice
4041229	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4017000 · Simazine · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041226	January 21, 2026	Informal	State Violation/Reminder Notice
4041227	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016999 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041224	January 21, 2026	Informal	State Violation/Reminder Notice
4041225	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016998 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041222	January 21, 2026	Informal	State Violation/Reminder Notice
4041223	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016997 · Carbofuran · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041220	January 21, 2026	Informal	State Violation/Reminder Notice
4041221	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016996 · Atrazine · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041218	January 21, 2026	Informal	State Violation/Reminder Notice
4041219	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016995 · LASSO · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041216	January 21, 2026	Informal	State Violation/Reminder Notice
4041217	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016994 · Heptachlor · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041214	January 21, 2026	Informal	State Violation/Reminder Notice
4041215	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016993 · Heptachlor epoxide · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041212	January 21, 2026	Informal	State Violation/Reminder Notice
4041213	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016992 · HEXACHLOROBENZENE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041210	January 21, 2026	Informal	State Violation/Reminder Notice
4041211	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016991 · Benzo(a)pyrene · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041208	January 21, 2026	Informal	State Violation/Reminder Notice
4041209	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016990 · Total Polychlorinated Biphenyls (PCB) · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041206	January 21, 2026	Informal	State Violation/Reminder Notice
4041207	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016989 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041204	January 21, 2026	Informal	State Violation/Reminder Notice
4041205	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016988 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041202	January 21, 2026	Informal	State Violation/Reminder Notice
4041203	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, RegularViolation 4016987 · Chlordane · Synthetic Organic Chemicals

Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 23, 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
4041200	January 21, 2026	Informal	State Violation/Reminder Notice
4041201	January 21, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4016928 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2022 · period end August 3, 2022 · first reported November 16, 2022 · EPA return-to-compliance field August 3, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041157	August 3, 2022	Resolving	State Compliance achieved
4041153	August 17, 2022	Informal	State Violation/Reminder Notice
4041154	August 17, 2022	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4016927 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2022 · period end July 31, 2022 · first reported November 16, 2022 · EPA return-to-compliance field July 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041157	August 3, 2022	Resolving	State Compliance achieved
4041151	August 17, 2022	Informal	State Violation/Reminder Notice
4041152	August 17, 2022	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 4016921 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2021 · period end June 30, 2021 · first reported August 18, 2021 · EPA return-to-compliance field June 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041147	July 21, 2021	Resolving	State Compliance achieved
4041139	August 4, 2021	Informal	State Violation/Reminder Notice
4041140	August 4, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 4016924 · Xylenes, Total · Volatile Organic Chemicals

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 18, 2021 · EPA return-to-compliance field June 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041145	August 6, 2021	Informal	State Violation/Reminder Notice
4041146	August 6, 2021	Informal	State Public Notification requested
4041150	September 13, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4016922 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 18, 2021 · EPA return-to-compliance field June 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041147	July 21, 2021	Resolving	State Compliance achieved
4041141	August 4, 2021	Informal	State Violation/Reminder Notice
4041142	August 4, 2021	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 4016920 · Xylenes, Total · Volatile Organic Chemicals

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported May 17, 2021 · EPA return-to-compliance field March 31, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041137	May 5, 2021	Informal	State Violation/Reminder Notice
4041138	May 5, 2021	Informal	State Public Notification requested
4041150	September 13, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4016926 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2020 · period end September 7, 2022 · first reported December 2, 2021 · EPA return-to-compliance field September 7, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041148	October 21, 2021	Informal	State Violation/Reminder Notice
4041149	October 21, 2021	Informal	State Public Notification requested
4041158	September 7, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 4016925 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2020 · period end September 7, 2022 · first reported December 2, 2021 · EPA return-to-compliance field September 7, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4041148	October 21, 2021	Informal	State Violation/Reminder Notice
4041149	October 21, 2021	Informal	State Public Notification requested
4041158	September 7, 2022	Resolving	State 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