IA2525010 · Iowa

DAWSON WATER WORKS

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

Violation records shown: 16
EPA health-based flag: 7
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 7

Counties listed by EPA · Dallas County, Iowa

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

Violations and what followed

Among 6 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 · Archived

Maximum Contaminant Level Violation, Single SampleViolation 231026 · Nitrate · Nitrate Rule

Noncompliance period start June 1, 2026 · period end June 30, 2026 · first reported September 22, 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
397568	February 27, 2026	Formal	State Administrative/Compliance Order without penalty issued
397566	June 26, 2026	Informal	State Formal Notice of Violation issued
397567	June 26, 2026	Informal	State Public Notification requested

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 212326 · Nitrate · Nitrate Rule

Noncompliance period start May 1, 2026 · period end May 31, 2026 · first reported September 22, 2026 · EPA return-to-compliance field May 31, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397565	February 27, 2026	Formal	State Administrative/Compliance Order without penalty issued
397562	May 29, 2026	Informal	State Formal Notice of Violation issued
397563	May 29, 2026	Informal	State Public Notification requested
397564	June 3, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 184826 · Nitrate · Nitrate Rule

Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported September 22, 2026 · EPA return-to-compliance field April 30, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397559	February 27, 2026	Formal	State Administrative/Compliance Order without penalty issued
397558	April 29, 2026	Informal	State Public Notification requested
397560	April 29, 2026	Informal	State Formal Notice of Violation issued
397561	May 26, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 164126 · Nitrate · Nitrate Rule

Noncompliance period start March 1, 2026 · period end March 31, 2026 · first reported June 17, 2026 · EPA return-to-compliance field March 31, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397557	February 27, 2026	Formal	State Administrative/Compliance Order without penalty issued
397555	March 23, 2026	Informal	State Formal Notice of Violation issued
397556	March 23, 2026	Informal	State Public Notification requested
397554	April 9, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 139726 · Nitrate · Nitrate Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported June 17, 2026 · EPA return-to-compliance field February 28, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397549	February 19, 2026	Informal	State Public Notification requested
397551	February 19, 2026	Informal	State Formal Notice of Violation issued
397550	February 27, 2026	Formal	State Administrative/Compliance Order without penalty issued
397553	March 2, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 73926 · Nitrate · Nitrate Rule

Noncompliance period start December 1, 2025 · period end December 31, 2025 · first reported June 17, 2026 · EPA return-to-compliance field December 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397547	December 29, 2025	Informal	State Formal Notice of Violation issued
397548	December 29, 2025	Informal	State Public Notification requested
397545	January 7, 2026	Informal	State Public Notification received
397546	February 27, 2026	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Resolved

Lead Consumer NoticeViolation 26626 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 20, 2025 · period end November 17, 2025 · first reported June 17, 2026 · EPA return-to-compliance field November 17, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397542	October 20, 2025	Informal	State Formal Notice of Violation issued
397543	November 17, 2025	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, Single SampleViolation 25326 · Nitrate · Nitrate Rule

Noncompliance period start October 1, 2025 · period end October 31, 2025 · first reported June 17, 2026 · EPA return-to-compliance field October 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397538	October 23, 2025	Informal	State Public Notification requested
397539	October 23, 2025	Informal	State Formal Notice of Violation issued
397537	October 24, 2025	Informal	State Public Notification received
397544	February 27, 2026	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Archived

Monitoring, RegularViolation 34926 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported December 19, 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
397540	November 20, 2025	Informal	State Public Notification requested
397541	November 20, 2025	Informal	State Formal Notice of Violation issued
397552	December 18, 2025	Informal	State Public Notification received

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 341625 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported December 19, 2025 · EPA return-to-compliance field July 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397535	September 22, 2025	Informal	State Public Notification requested
397536	September 22, 2025	Informal	State Formal Notice of Violation issued

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 341525 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported December 19, 2025 · EPA return-to-compliance field July 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397533	September 22, 2025	Informal	State Public Notification requested
397534	September 22, 2025	Informal	State Formal Notice of Violation issued

Monitoring or reporting · Resolved

Water Quality Parameter M/RViolation 367525 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start May 1, 2025 · period end May 31, 2025 · first reported December 19, 2025 · EPA return-to-compliance field May 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397531	September 30, 2025	Informal	State Formal Notice of Violation issued
397532	September 30, 2025	Informal	State Public Notification requested
397530	October 3, 2025	Formal	State Administrative/Compliance Order without penalty issued
397529	November 5, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 2825 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2024 · period end October 31, 2024 · first reported December 19, 2024 · EPA return-to-compliance field October 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397526	October 9, 2024	Informal	State Formal Notice of Violation issued
397525	October 31, 2024	Resolving	State Compliance achieved
397528	April 14, 2025	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 201824 · Nitrate · Nitrate Rule

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported September 25, 2024 · EPA return-to-compliance field June 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397520	July 17, 2024	Informal	State Public Notification requested
397521	July 17, 2024	Informal	State Formal Notice of Violation issued
397527	September 25, 2024	Resolving	State Compliance achieved
397524	October 31, 2024	Informal	State Public Notification received

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 60824 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start November 19, 2023 · period end October 31, 2024 · first reported March 12, 2024 · EPA return-to-compliance field October 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
397516	December 18, 2023	Informal	State Violation/Reminder Notice
397517	December 18, 2023	Informal	State Formal Notice of Violation issued
397518	December 18, 2023	Informal	State Intentional no-action
397523	October 31, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 162523 · Nitrate · Nitrate Rule

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported September 13, 2023 · 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
397514	August 15, 2023	Informal	State Public Notification requested
397515	August 15, 2023	Informal	State Formal Notice of Violation issued
397519	December 19, 2023	Resolving	State Compliance achieved
397522	October 31, 2024	Informal	State Public Notification received

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