ID3140281 · Idaho

HORIZON RIDGE SUBDIVISION

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

Violation records shown: 9
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 9

Counties listed by EPA · Canyon County, Idaho

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

Violations and what followed

Monitoring or reporting · Archived
Monitoring, RegularViolation 4 · HEXACHLOROBENZENE · Synthetic Organic Chemicals
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported September 28, 2026 · EPA return-to-compliance field June 30, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 9 · Radium-228 · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported September 28, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 8 · Radium-226 · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported September 28, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 7 · Radium-226 · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported September 28, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 6 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported September 28, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 5 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported September 28, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 2 · Endothall · Synthetic Organic Chemicals
Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported June 26, 2026 · EPA return-to-compliance field March 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
3 May 19, 2026 Informal State Violation/Reminder Notice
4 May 22, 2026 Informal State Public Notification requested
Monitoring or reporting · Archived
Monitoring, RegularViolation 10 · Radium-228 · Radionuclides and Revised Rad Rule
Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported September 28, 2026 · EPA return-to-compliance field March 31, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 1 · Endothall · Synthetic Organic Chemicals
Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported June 26, 2026 · EPA return-to-compliance field March 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
1 May 19, 2026 Informal State Violation/Reminder Notice
2 May 22, 2026 Informal State Public Notification requested

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
3	May 19, 2026	Informal	State Violation/Reminder Notice
4	May 22, 2026	Informal	State Public Notification requested

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1	May 19, 2026	Informal	State Violation/Reminder Notice
2	May 22, 2026	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