MN1070001 · Minnesota
Amboy
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 12
- EPA health-based flag
- 10
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 2
Counties listed by EPA · Blue Earth County, Minnesota
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 122 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 803617 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start July 1, 2024 · period end September 30, 2024 · first reported February 25, 2026 · 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 803617SFJ November 15, 2024 Informal State Formal Notice of Violation issued 803617SIB November 15, 2024 Informal State Compliance Meeting conducted 803617SIE November 15, 2024 Informal State Public Notification requested EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 796688 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start April 1, 2024 · period end June 30, 2024 · first reported February 25, 2026 · EPA return-to-compliance field June 30, 2024
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 793526SIF June 18, 2024 Informal State Public Notification received 796688SFJ August 6, 2024 Informal State Formal Notice of Violation issued 796688SIB August 6, 2024 Informal State Compliance Meeting conducted 796688SIE August 6, 2024 Informal State Public Notification requested 799373SIF September 11, 2024 Informal State Public Notification received EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 789148 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported February 25, 2026 · EPA return-to-compliance field March 31, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 787404SIF February 26, 2024 Informal State Public Notification received 789148SFJ April 2, 2024 Informal State Formal Notice of Violation issued 789148SIB April 2, 2024 Informal State Compliance Meeting conducted 789148SIE April 2, 2024 Informal State Public Notification requested EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 786124 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 25, 2026 · 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 786124SFJ February 13, 2024 Informal State Formal Notice of Violation issued 786124SIB February 13, 2024 Informal State Compliance Meeting conducted 786124SIE February 13, 2024 Informal State Public Notification requested EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 785306 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start July 1, 2023 · period end September 30, 2023 · first reported February 25, 2026 · 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 785306SFJ January 8, 2024 Informal State Formal Notice of Violation issued 785306SIB January 8, 2024 Informal State Compliance Meeting conducted 785306SIE January 8, 2024 Informal State Public Notification requested EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 774372 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start April 1, 2023 · period end June 30, 2023 · first reported February 25, 2026 · EPA return-to-compliance field June 30, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 774372SFJ August 8, 2023 Informal State Formal Notice of Violation issued 774372SIB August 8, 2023 Informal State Compliance Meeting conducted 774372SIE August 8, 2023 Informal State Public Notification requested 782543SIF August 22, 2023 Informal State Public Notification received EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 770230 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported February 25, 2026 · EPA return-to-compliance field March 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 770230SFJ June 28, 2023 Informal State Formal Notice of Violation issued 770230SIB June 28, 2023 Informal State Compliance Meeting conducted 770230SIE June 28, 2023 Informal State Public Notification requested 773536SIF June 29, 2023 Informal State Public Notification received EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 766608 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 766608SFJ March 21, 2023 Informal State Formal Notice of Violation issued 766608SIB March 21, 2023 Informal State Compliance Meeting conducted 766608SIE March 21, 2023 Informal State Public Notification requested 767756SIF April 3, 2023 Informal State Public Notification received EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 762453 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start July 1, 2022 · period end September 30, 2022 · first reported February 25, 2026 · EPA return-to-compliance field September 30, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 764441SIF January 6, 2023 Informal State Public Notification received EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 751251 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad RuleNoncompliance period start January 1, 2022 · period end March 31, 2022 · first reported July 1, 2022 · EPA return-to-compliance field March 31, 2022
5 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 751251SFJ June 6, 2022 Informal State Formal Notice of Violation issued 751251SIB June 6, 2022 Informal State Compliance Meeting conducted 751251SIE June 6, 2022 Informal State Public Notification requested 755256SIF July 21, 2022 Informal State Public Notification received 805354SOX December 17, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 745864295027 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2021 · period end October 31, 2021 · first reported March 15, 2022 · EPA return-to-compliance field October 31, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 750807SOX November 1, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 745864245627 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2021 · period end October 31, 2021 · first reported March 15, 2022 · EPA return-to-compliance field October 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 750807SOX November 1, 2021 Resolving State Compliance achieved 745864SFJ February 22, 2022 Informal State Formal Notice of Violation issued 745864SIE February 22, 2022 Informal State Public Notification requested
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