CO0145540 · Colorado

PATTERSON VALLEY WC

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

Violation records shown: 61
EPA health-based flag: 50
Health-based records unresolved in this snapshot: 2
Monitoring and reporting records: 9

Counties listed by EPA · Otero 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 11 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Addressed by formal action

Maximum Contaminant Level Violation, AverageViolation 4006936 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2026 · period end September 30, 2026 · first reported September 15, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030080	August 11, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Addressed by formal action

Maximum Contaminant Level Violation, AverageViolation 4006935 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2026 · period end September 30, 2026 · first reported September 15, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030079	August 7, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006934 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported May 27, 2026 · EPA return-to-compliance field June 30, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030078	May 11, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006933 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported May 27, 2026 · EPA return-to-compliance field June 30, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030077	May 6, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006932 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030076	March 4, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006931 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030075	March 4, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006930 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030073	December 19, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006929 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported February 23, 2026 · EPA return-to-compliance field December 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030072	December 18, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006928 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 17, 2025 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030070	October 3, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006927 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported November 17, 2025 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030069	October 3, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006926 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported August 18, 2025 · EPA return-to-compliance field June 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030068	June 26, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006925 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported August 18, 2025 · EPA return-to-compliance field June 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030067	June 26, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006924 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported May 15, 2025 · EPA return-to-compliance field March 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030065	May 8, 2025	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006923 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported May 15, 2025 · EPA return-to-compliance field March 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030063	May 8, 2025	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Lead Consumer NoticeViolation 4006920 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2025 · period end March 27, 2025 · first reported February 18, 2025 · EPA return-to-compliance field March 27, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030055	January 15, 2025	Informal	State Violation/Reminder Notice
4030056	January 15, 2025	Informal	State Public Notification requested
4030062	March 27, 2025	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006919 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start October 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
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030053	December 10, 2024	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006918 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 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
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030053	December 10, 2024	Informal	State Violation/Reminder Notice

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 4006915 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start October 1, 2024 · period end December 30, 2024 · first reported November 14, 2024 · EPA return-to-compliance field December 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030049	November 1, 2024	Informal	State Violation/Reminder Notice
4030050	November 1, 2024	Informal	State Public Notification requested
4030061	December 30, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 4006914 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2024 · period end September 30, 2025 · first reported November 14, 2024 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030047	October 15, 2024	Informal	State Violation/Reminder Notice
4030048	October 15, 2024	Informal	State Public Notification requested
4030071	September 30, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Source Water (GWR)Violation 4006913 · E. COLI · Ground Water Rule

Noncompliance period start July 12, 2024 · period end August 6, 2024 · first reported November 14, 2024 · EPA return-to-compliance field August 6, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030051	August 6, 2024	Resolving	State Compliance achieved
4030045	August 27, 2024	Informal	State Violation/Reminder Notice
4030046	August 27, 2024	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006917 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported February 18, 2025 · EPA return-to-compliance field September 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030053	December 10, 2024	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006916 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported February 18, 2025 · EPA return-to-compliance field September 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030053	December 10, 2024	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006912 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030043	July 17, 2024	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006910 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 14, 2024 · EPA return-to-compliance field June 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030043	July 17, 2024	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 4006922 · 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
4030059	January 20, 2025	Informal	State Violation/Reminder Notice
4030060	January 20, 2025	Informal	State Public Notification requested
4030066	April 11, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 4006921 · 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
4030057	January 20, 2025	Informal	State Violation/Reminder Notice
4030058	January 20, 2025	Informal	State Public Notification requested
4030074	December 8, 2025	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006911 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported August 14, 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
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030043	July 17, 2024	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006909 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported August 14, 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
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030043	July 17, 2024	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 4006908 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad 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
4030040	May 1, 2024	Informal	State Violation/Reminder Notice
4030041	May 1, 2024	Informal	State Public Notification requested
4030044	May 6, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 4006907 · Combined Uranium · Radionuclides and Revised Rad 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
4030038	May 1, 2024	Informal	State Violation/Reminder Notice
4030039	May 1, 2024	Informal	State Public Notification requested
4030044	May 6, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 4006906 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad 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
4030036	May 1, 2024	Informal	State Violation/Reminder Notice
4030037	May 1, 2024	Informal	State Public Notification requested
4030044	May 6, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 4006905 · Combined Uranium · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030034	January 30, 2024	Informal	State Violation/Reminder Notice
4030035	January 30, 2024	Informal	State Public Notification requested
4030052	June 24, 2024	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006902 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030033	January 16, 2024	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006900 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 14, 2024 · EPA return-to-compliance field December 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030033	January 16, 2024	Informal	State Violation/Reminder Notice

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 4006898 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start October 1, 2023 · period end March 21, 2024 · first reported November 15, 2023 · EPA return-to-compliance field March 21, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
4030032 October 1, 2023 Informal State Violation/Reminder Notice
4030042 March 21, 2024 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030032	October 1, 2023	Informal	State Violation/Reminder Notice
4030042	March 21, 2024	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006904 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field September 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030033	January 16, 2024	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006903 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 14, 2024 · EPA return-to-compliance field September 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030033	January 16, 2024	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006897 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start April 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
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030031	May 8, 2023	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006895 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 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
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030031	May 8, 2023	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006896 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030030	March 8, 2023	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006894 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030030	March 8, 2023	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006893 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 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
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030029	December 28, 2022	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006892 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start October 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
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030029	December 28, 2022	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006891 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported February 14, 2023 · EPA return-to-compliance field September 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030029	December 28, 2022	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006890 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported February 14, 2023 · EPA return-to-compliance field September 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030029	December 28, 2022	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006889 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 15, 2022 · EPA return-to-compliance field June 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030026	July 18, 2022	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006888 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 15, 2022 · EPA return-to-compliance field June 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030026	July 18, 2022	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006887 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported August 15, 2022 · EPA return-to-compliance field March 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030026	July 18, 2022	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006886 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported August 15, 2022 · EPA return-to-compliance field March 31, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4030027	May 31, 2022	Informal	State Public Notification requested
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued
4030026	July 18, 2022	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006885 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported February 23, 2022 · EPA return-to-compliance field December 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030025	January 18, 2022	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006884 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported February 23, 2022 · EPA return-to-compliance field December 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030025	January 18, 2022	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006883 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported February 23, 2022 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030025	January 18, 2022	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006882 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported February 23, 2022 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030025	January 18, 2022	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006881 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030024	June 9, 2021	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006880 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad 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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030024	June 9, 2021	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006879 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 18, 2021 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030024	June 9, 2021	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006878 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 18, 2021 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030024	June 9, 2021	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006877 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030023	December 30, 2020	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006876 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030023	December 30, 2020	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006875 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2020 · period end September 30, 2020 · first reported February 16, 2021 · EPA return-to-compliance field September 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030023	December 30, 2020	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 4006874 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2020 · period end September 30, 2020 · first reported February 16, 2021 · EPA return-to-compliance field September 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
4029988	September 27, 2017	Informal	State Public Notification requested
4029991	January 4, 2018	Formal	State Administrative/Compliance Order without penalty issued
4030023	December 30, 2020	Informal	State Violation/Reminder Notice
4030028	May 31, 2022	Formal	State Administrative/Compliance Order without penalty issued

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