MT0003595 · Montana

NORTH VALLEY COUNTY WATER AND SEWER DIST

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

Violation records shown: 35
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 30

Counties listed by EPA · Valley County, Montana

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

Violations and what followed

Among 29 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.

Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Complete Failure to ReportViolation 1256053 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2026 · first reported September 24, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
458 July 2, 2026 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
458	July 2, 2026	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256054 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start May 1, 2026 · period end May 31, 2026 · first reported August 24, 2026 · EPA return-to-compliance field May 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
460	June 18, 2026	Informal	State Violation/Reminder Notice
461	June 18, 2026	Informal	State Public Notification requested
463	July 3, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256052 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported June 29, 2026 · EPA return-to-compliance field April 30, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
454	June 10, 2026	Informal	State Violation/Reminder Notice
455	June 10, 2026	Informal	State Public Notification requested
457	July 3, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256051 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start March 1, 2026 · period end March 31, 2026 · first reported June 29, 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
450	June 10, 2026	Informal	State Violation/Reminder Notice
451	June 10, 2026	Informal	State Public Notification requested
453	July 3, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256050 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported May 27, 2026 · EPA return-to-compliance field February 28, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
446	March 20, 2026	Informal	State Violation/Reminder Notice
447	March 20, 2026	Informal	State Public Notification requested
449	March 20, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256047 · Revised Total Coliform Rule · Revised Total Coliform Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
438	December 23, 2024	Informal	State Violation/Reminder Notice
439	December 23, 2024	Informal	State Public Notification requested
441	December 23, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256046 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 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
433	November 14, 2024	Informal	State Violation/Reminder Notice
434	November 14, 2024	Informal	State Public Notification requested
436	November 14, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 1256042 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 1, 2024 · period end December 16, 2024 · first reported December 19, 2024 · EPA return-to-compliance field December 16, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
420	November 10, 2023	Informal	State Other
418	October 1, 2024	Informal	State Violation/Reminder Notice
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued
419	December 16, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256045 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start September 1, 2024 · period end September 30, 2024 · first reported November 18, 2024 · 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
429	October 17, 2024	Informal	State Violation/Reminder Notice
430	October 17, 2024	Informal	State Public Notification requested
432	October 17, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256043 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start September 1, 2024 · period end September 30, 2024 · first reported November 18, 2024 · 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
421	October 17, 2024	Informal	State Violation/Reminder Notice
422	October 17, 2024	Informal	State Public Notification requested
424	December 5, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256044 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported November 18, 2024 · EPA return-to-compliance field August 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
425	October 17, 2024	Informal	State Violation/Reminder Notice
426	October 17, 2024	Informal	State Public Notification requested
428	October 17, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256041 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported September 19, 2024 · EPA return-to-compliance field August 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
414	September 16, 2024	Informal	State Violation/Reminder Notice
415	September 16, 2024	Informal	State Public Notification requested
417	December 5, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256040 · Surface Water Treatment Rule · Surface Water Treatment Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
410	August 22, 2024	Informal	State Violation/Reminder Notice
411	August 22, 2024	Informal	State Public Notification requested
413	August 22, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256038 · Revised Total Coliform Rule · Revised Total Coliform Rule

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

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
402	August 19, 2024	Informal	State Violation/Reminder Notice
403	August 19, 2024	Informal	State Public Notification requested
405	December 5, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 1256036 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2024 · period end December 16, 2024 · first reported September 19, 2024 · EPA return-to-compliance field December 16, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
401	November 10, 2023	Informal	State Other
396	July 23, 2024	Informal	State Violation/Reminder Notice
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued
397	December 16, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256039 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start June 1, 2024 · period end June 30, 2024 · first reported September 19, 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
406	August 22, 2024	Informal	State Violation/Reminder Notice
407	August 22, 2024	Informal	State Public Notification requested
409	August 22, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256035 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2024 · period end June 30, 2024 · first reported August 15, 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
392	July 17, 2024	Informal	State Violation/Reminder Notice
393	July 17, 2024	Informal	State Public Notification requested
395	December 5, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256034 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2024 · period end May 31, 2024 · first reported June 27, 2024 · EPA return-to-compliance field May 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
388	June 17, 2024	Informal	State Violation/Reminder Notice
389	June 17, 2024	Informal	State Public Notification requested
391	December 5, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256033 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start April 1, 2024 · period end April 30, 2024 · first reported June 27, 2024 · EPA return-to-compliance field April 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
384	June 3, 2024	Informal	State Violation/Reminder Notice
385	June 3, 2024	Informal	State Public Notification requested
387	June 3, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256032 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start March 1, 2024 · period end March 31, 2024 · first reported June 27, 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
380	May 15, 2024	Informal	State Violation/Reminder Notice
381	May 15, 2024	Informal	State Public Notification requested
383	May 15, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256031 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start February 1, 2024 · period end February 29, 2024 · first reported May 16, 2024 · EPA return-to-compliance field February 29, 2024

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
379	November 10, 2023	Informal	State Other
375	March 29, 2024	Informal	State Violation/Reminder Notice
376	March 29, 2024	Informal	State Public Notification requested
378	March 29, 2024	Resolving	State Compliance achieved
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1256049 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts 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
442	January 23, 2025	Informal	State Violation/Reminder Notice
443	January 23, 2025	Informal	State Public Notification requested
444	January 23, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 1256048 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts 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
442	January 23, 2025	Informal	State Violation/Reminder Notice
443	January 23, 2025	Informal	State Public Notification requested
444	January 23, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256030 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start January 1, 2024 · period end January 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field January 31, 2024

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
379	November 10, 2023	Informal	State Other
371	February 20, 2024	Informal	State Violation/Reminder Notice
372	February 20, 2024	Informal	State Public Notification requested
374	February 20, 2024	Resolving	State Compliance achieved
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256029 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2024 · period end January 31, 2024 · first reported March 20, 2024 · EPA return-to-compliance field January 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
367	February 13, 2024	Informal	State Violation/Reminder Notice
368	February 13, 2024	Informal	State Public Notification requested
370	February 27, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring of Treatment (SWTR-Filter)Violation 1256028 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start December 1, 2023 · period end December 31, 2023 · first reported February 15, 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
363	February 2, 2024	Informal	State Violation/Reminder Notice
364	February 2, 2024	Informal	State Public Notification requested
366	February 2, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 1256027 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 1, 2023 · period end October 31, 2023 · first reported December 20, 2023 · EPA return-to-compliance field October 31, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
362	November 15, 2023	Resolving	State Compliance achieved
359	November 24, 2023	Informal	State Violation/Reminder Notice
360	November 24, 2023	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 1256025 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2023 · period end September 30, 2024 · first reported December 20, 2023 · 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
351	October 17, 2023	Informal	State Violation/Reminder Notice
352	October 17, 2023	Informal	State Public Notification requested
353	September 30, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring of Treatment (SWTR-Filter)Violation 1256026 · Surface Water Treatment Rule · Surface Water Treatment Rule

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

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
354	November 6, 2023	Informal	State Violation/Reminder Notice
355	November 6, 2023	Informal	State Public Notification requested
357	November 6, 2023	Resolving	State Compliance achieved
358	November 10, 2023	Informal	State Other
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued

Monitoring or reporting · Archived

Monitoring of Treatment (SWTR-Filter)Violation 1256023 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start August 1, 2023 · period end August 31, 2023 · first reported September 22, 2023 · EPA return-to-compliance field August 31, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
345	September 18, 2023	Informal	State Violation/Reminder Notice
346	September 18, 2023	Informal	State Public Notification requested
348	September 18, 2023	Resolving	State Compliance achieved
358	November 10, 2023	Informal	State Other
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued

Monitoring or reporting · Archived

Monitoring of Treatment (SWTR-Filter)Violation 1256022 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start July 1, 2023 · period end July 31, 2023 · first reported September 22, 2023 · EPA return-to-compliance field July 31, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
341	September 18, 2023	Informal	State Violation/Reminder Notice
342	September 18, 2023	Informal	State Public Notification requested
344	September 18, 2023	Resolving	State Compliance achieved
358	November 10, 2023	Informal	State Other
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued

Monitoring or reporting · Archived

Monitoring of Treatment (SWTR-Filter)Violation 1256021 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start January 1, 2023 · period end January 31, 2023 · first reported September 22, 2023 · EPA return-to-compliance field January 31, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
337	March 2, 2023	Informal	State Public Notification requested
338	March 2, 2023	Informal	State Violation/Reminder Notice
340	March 2, 2023	Resolving	State Compliance achieved
358	November 10, 2023	Informal	State Other
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued

Monitoring or reporting · Addressed by formal action

Lead Consumer NoticeViolation 1256024 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start December 31, 2022 · first reported September 22, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
349	July 28, 2023	Informal	State Violation/Reminder Notice
358	November 10, 2023	Informal	State Other
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 1256020 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 1, 2022 · period end December 16, 2024 · first reported September 22, 2023 · EPA return-to-compliance field December 16, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
335	October 3, 2022	Informal	State Violation/Reminder Notice
358	November 10, 2023	Informal	State Other
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued
336	December 16, 2024	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 1256018 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2022 · period end December 16, 2024 · first reported September 22, 2023 · EPA return-to-compliance field December 16, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
330	July 11, 2022	Informal	State Violation/Reminder Notice
358	November 10, 2023	Informal	State Other
437	November 14, 2024	Formal	State Administrative/Compliance Order with penalty issued
331	December 16, 2024	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