CO0143525 · Colorado

MUSTANG WATER AUTHORITY

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

Violation records shown: 82
EPA health-based flag: 6
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 75

Counties listed by EPA · Montrose 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 81 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.

EPA health-based flag · Archived

Monthly Turbidity Exceed (Enhanced SWTR)Violation 210 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start July 1, 2026 · period end July 31, 2026 · first reported September 15, 2026 · EPA return-to-compliance field July 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
102	August 12, 2026	Informal	State Violation/Reminder Notice
103	August 12, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 209 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 208 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 207 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 206 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 205 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 204 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 203 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 202 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 201 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 200 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 199 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 198 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 197 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 196 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 195 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 194 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 193 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 192 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 191 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 190 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 189 · 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	January 14, 2025	Informal	State Violation/Reminder Notice
99	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 188 · Nitrate · Nitrate Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
94	January 14, 2025	Informal	State Violation/Reminder Notice
95	January 14, 2025	Informal	State Public Notification requested
100	January 20, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 187 · Selenium · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 186 · Thallium, Total · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 185 · Beryllium, Total · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 184 · Antimony, Total · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 182 · Nickel · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 181 · Mercury · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 180 · Chromium · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 179 · Cadmium · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 178 · Barium · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 177 · Arsenic · Arsenic Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	January 14, 2025	Informal	State Violation/Reminder Notice
97	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 176 · Fluoride · Inorganic 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
94	January 14, 2025	Informal	State Violation/Reminder Notice
95	January 14, 2025	Informal	State Public Notification requested
101	January 21, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 175 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start October 7, 2023 · period end November 21, 2023 · first reported November 15, 2023 · EPA return-to-compliance field November 21, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
81 October 31, 2023 Informal State Violation/Reminder Notice
89 November 21, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
81	October 31, 2023	Informal	State Violation/Reminder Notice
89	November 21, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 166 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start September 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
58	September 6, 2023	Informal	State Violation/Reminder Notice
59	September 6, 2023	Informal	State Public Notification requested
85	September 6, 2023	Resolving	State Compliance achieved
87	November 21, 2023	Informal	State Public Notification received

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 165 · Surface Water Treatment Rule · Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
56	September 6, 2023	Informal	State Violation/Reminder Notice
57	September 6, 2023	Informal	State Public Notification requested
85	September 6, 2023	Resolving	State Compliance achieved
88	November 21, 2023	Informal	State Public Notification received

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 164 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
52	September 6, 2023	Informal	State Violation/Reminder Notice
53	September 6, 2023	Informal	State Public Notification requested
76	September 18, 2023	Informal	State Public Notification received
82	October 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 161 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
50	August 18, 2023	Informal	State Violation/Reminder Notice
51	August 18, 2023	Informal	State Public Notification requested
82	October 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 160 · Surface Water Treatment Rule · Surface Water Treatment 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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
50	August 18, 2023	Informal	State Violation/Reminder Notice
51	August 18, 2023	Informal	State Public Notification requested
82	October 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 159 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start June 1, 2023 · period end June 30, 2023 · first reported August 15, 2023 · EPA return-to-compliance field June 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
48	July 13, 2023	Informal	State Violation/Reminder Notice
49	July 13, 2023	Informal	State Public Notification requested
82	October 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 158 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start June 1, 2023 · period end June 30, 2023 · first reported August 15, 2023 · EPA return-to-compliance field June 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
46	July 13, 2023	Informal	State Violation/Reminder Notice
47	July 13, 2023	Informal	State Public Notification requested
82	October 10, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Monthly Turbidity Exceed (Enhanced SWTR)Violation 163 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
54	September 6, 2023	Informal	State Violation/Reminder Notice
55	September 6, 2023	Informal	State Public Notification requested
77	September 18, 2023	Informal	State Public Notification received
82	October 10, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Single Turbidity Exceed (Enhanced SWTR)Violation 162 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
52	September 6, 2023	Informal	State Violation/Reminder Notice
53	September 6, 2023	Informal	State Public Notification requested
76	September 18, 2023	Informal	State Public Notification received
82	October 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 157 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
44	June 15, 2023	Informal	State Violation/Reminder Notice
45	June 15, 2023	Informal	State Public Notification requested
82	October 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 156 · Surface Water Treatment Rule · Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
42	June 15, 2023	Informal	State Violation/Reminder Notice
43	June 15, 2023	Informal	State Public Notification requested
82	October 10, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 155 · Fluoride · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
40	January 27, 2023	Informal	State Violation/Reminder Notice
41	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 154 · Nitrate · Nitrate Rule

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
38	January 27, 2023	Informal	State Violation/Reminder Notice
39	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 153 · Selenium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 152 · Thallium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 151 · Beryllium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 150 · Antimony, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 148 · Nickel · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 147 · Mercury · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 146 · Chromium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 145 · Cadmium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 144 · Barium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 143 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
36	January 27, 2023	Informal	State Violation/Reminder Notice
37	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 142 · Styrene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 141 · Ethylbenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 140 · Toluene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 139 · Benzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 138 · CHLOROBENZENE · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 137 · Tetrachloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 136 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 135 · Trichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 134 · 1,2-Dichloropropane · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 133 · Carbon tetrachloride · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 132 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 131 · 1,2-Dichloroethane · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 130 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 129 · 1,1-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 128 · Vinyl chloride · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 127 · p-Dichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 126 · o-Dichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 125 · DICHLOROMETHANE · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 124 · Xylenes, Total · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 123 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 122 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported February 14, 2023 · EPA return-to-compliance field December 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
34	January 27, 2023	Informal	State Violation/Reminder Notice
35	January 27, 2023	Informal	State Public Notification requested
91	January 9, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Turbidity (Enhanced SWTR)Violation 121 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start April 1, 2021 · period end April 30, 2021 · first reported May 17, 2021 · EPA return-to-compliance field April 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
30	May 13, 2021	Informal	State Violation/Reminder Notice
31	May 13, 2021	Informal	State Public Notification requested
32	June 10, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 120 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start April 1, 2021 · period end April 30, 2021 · first reported May 17, 2021 · EPA return-to-compliance field April 30, 2021

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
28	May 13, 2021	Informal	State Violation/Reminder Notice
29	May 13, 2021	Informal	State Public Notification requested
32	June 10, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 119 · Fluoride · Inorganic Chemicals

Noncompliance period start January 1, 2020 · period end December 31, 2020 · first reported February 16, 2021 · EPA return-to-compliance field December 31, 2020

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
23	January 25, 2021	Informal	State Violation/Reminder Notice
24	January 25, 2021	Informal	State Public Notification requested
33	December 28, 2021	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