IN5224006 · Indiana

OLDENBURG WATER WORKS

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

Violation records shown: 26
EPA health-based flag: 3
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 13

Counties listed by EPA · Franklin County, Indiana

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

Violations and what followed

Among 26 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 112 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1065 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported June 24, 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
1426	April 15, 2026	Informal	State Violation/Reminder Notice
1427	April 15, 2026	Informal	State Public Notification requested
1432	May 31, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1064 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported June 24, 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
1426	April 15, 2026	Informal	State Violation/Reminder Notice
1427	April 15, 2026	Informal	State Public Notification requested
1432	May 31, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 1061 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start January 1, 2026 · period end January 15, 2026 · first reported June 24, 2026 · EPA return-to-compliance field January 15, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1420 January 6, 2026 Informal State Violation/Reminder Notice
1421 January 15, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1420	January 6, 2026	Informal	State Violation/Reminder Notice
1421	January 15, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 1063 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start December 2, 2025 · period end December 23, 2025 · first reported June 24, 2026 · EPA return-to-compliance field December 23, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1404	November 21, 2024	Informal	State Public Notification requested
1424	December 23, 2025	Informal	State Public Notification received
1425	December 23, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 1058 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2025 · period end June 17, 2026 · first reported February 24, 2026 · EPA return-to-compliance field June 17, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1409 July 17, 2025 Informal State Violation/Reminder Notice
1431 June 17, 2026 Resolving State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 1060 · Groundwater Rule · Ground Water Rule

Noncompliance period start August 12, 2025 · period end January 15, 2026 · first reported February 24, 2026 · EPA return-to-compliance field January 15, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1417	November 20, 2025	Informal	State Violation/Reminder Notice
1418	November 20, 2025	Informal	State Public Notification requested
1429	January 15, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 1059 · Groundwater Rule · Ground Water Rule

Noncompliance period start August 12, 2025 · period end December 23, 2025 · first reported February 24, 2026 · EPA return-to-compliance field December 23, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1415	November 20, 2025	Informal	State Violation/Reminder Notice
1416	November 20, 2025	Informal	State Public Notification requested
1428	December 23, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 1055 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2025 · period end June 17, 2026 · first reported December 17, 2025 · EPA return-to-compliance field June 17, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1408 July 15, 2025 Informal State Violation/Reminder Notice
1431 June 17, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1408	July 15, 2025	Informal	State Violation/Reminder Notice
1431	June 17, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved

Failure to Consult with StateViolation 1062 · Groundwater Rule · Ground Water Rule

Noncompliance period start June 30, 2025 · period end January 15, 2026 · first reported February 24, 2026 · EPA return-to-compliance field January 15, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1422	July 24, 2025	Informal	State Violation/Reminder Notice
1423	July 24, 2025	Informal	State Public Notification requested
1430	January 15, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1057 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported December 17, 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
1409	July 17, 2025	Informal	State Violation/Reminder Notice
1410	July 17, 2025	Informal	State Public Notification requested
1414	September 11, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1056 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported December 17, 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
1409	July 17, 2025	Informal	State Violation/Reminder Notice
1410	July 17, 2025	Informal	State Public Notification requested
1414	September 11, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 1066 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start January 1, 2025 · period end December 23, 2025 · first reported June 24, 2026 · EPA return-to-compliance field December 23, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1404	November 21, 2024	Informal	State Public Notification requested
1424	December 23, 2025	Informal	State Public Notification received
1425	December 23, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1054 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported June 6, 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
1406	April 28, 2025	Informal	State Violation/Reminder Notice
1407	April 28, 2025	Informal	State Public Notification requested
1414	September 11, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1053 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported June 6, 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
1406	April 28, 2025	Informal	State Violation/Reminder Notice
1407	April 28, 2025	Informal	State Public Notification requested
1414	September 11, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

LSL ReportingViolation 1052 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end November 27, 2024 · first reported February 27, 2025 · EPA return-to-compliance field November 27, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1403	November 21, 2024	Informal	State Violation/Reminder Notice
1404	November 21, 2024	Informal	State Public Notification requested
1405	November 27, 2024	Resolving	State Compliance achieved
1419	December 23, 2025	Informal	State Public Notification received

EPA health-based flag · Resolved

LSL InventoryViolation 1051 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end November 27, 2024 · first reported February 27, 2025 · EPA return-to-compliance field November 27, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1403	November 21, 2024	Informal	State Violation/Reminder Notice
1404	November 21, 2024	Informal	State Public Notification requested
1405	November 27, 2024	Resolving	State Compliance achieved
1419	December 23, 2025	Informal	State Public Notification received

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 1049 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 10, 2024 · period end June 17, 2026 · first reported February 27, 2025 · EPA return-to-compliance field June 17, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1400 October 9, 2024 Informal State Violation/Reminder Notice
1431 June 17, 2026 Resolving State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 1048 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2024 · period end June 17, 2026 · first reported December 2, 2024 · EPA return-to-compliance field June 17, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1398	August 2, 2024	Informal	State Violation/Reminder Notice
1399	August 2, 2024	Informal	State Public Notification requested
1431	June 17, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 1045 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2023 · period end June 17, 2026 · first reported November 29, 2023 · EPA return-to-compliance field June 17, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1392	July 25, 2023	Informal	State Violation/Reminder Notice
1393	July 25, 2023	Informal	State Public Notification requested
1431	June 17, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 1047 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start January 1, 2023 · period end June 17, 2026 · first reported November 29, 2023 · EPA return-to-compliance field June 17, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1396	October 30, 2023	Informal	State Violation/Reminder Notice
1397	October 30, 2023	Informal	State Public Notification requested
1431	June 17, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Report Sample Result/Fail Monitor (RTCR)Violation 1043 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 11, 2022 · period end August 27, 2025 · first reported June 1, 2022 · EPA return-to-compliance field August 27, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1386	January 21, 2022	Informal	State Violation/Reminder Notice
1387	January 21, 2022	Informal	State Public Notification requested
1388	March 2, 2022	Resolving	State Compliance achieved
1411	August 27, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 1050 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2022 · period end October 6, 2025 · first reported December 2, 2024 · EPA return-to-compliance field October 6, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1400	October 9, 2024	Informal	State Violation/Reminder Notice
1401	October 16, 2024	Informal	State Violation/Reminder Notice
1402	October 16, 2024	Informal	State Public Notification requested
1413	October 6, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 1042 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2021 · period end November 1, 2022 · first reported February 17, 2022 · EPA return-to-compliance field November 1, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1384	October 28, 2021	Informal	State Violation/Reminder Notice
1385	October 28, 2021	Informal	State Public Notification requested
1391	November 1, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 1037 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 30, 2020 · period end November 16, 2020 · first reported March 3, 2021 · EPA return-to-compliance field November 16, 2020

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1374	October 30, 2020	Informal	State Violation/Reminder Notice
1375	October 30, 2020	Informal	State Public Notification requested
1378	November 16, 2020	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1039 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported May 20, 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
1379	January 28, 2021	Informal	State Violation/Reminder Notice
1380	January 28, 2021	Informal	State Public Notification requested
1412	March 29, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1038 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 3, 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
1379	January 28, 2021	Informal	State Violation/Reminder Notice
1380	January 28, 2021	Informal	State Public Notification requested
1412	March 29, 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