ID5420030 · Idaho

HOLLISTER CITY OF

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

Violation records shown: 7
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 6

Counties listed by EPA · Twin Falls 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

Among 2 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 40 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 8399 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported September 28, 2026 · EPA return-to-compliance field April 30, 2026
No linked action row appears in the records shown.

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 8398 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported September 28, 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
67967	June 25, 2026	Informal	State Violation/Reminder Notice
67969	June 25, 2026	Informal	State Violation/Reminder Notice
67968	June 28, 2026	Informal	State Public Notification requested
67970	June 28, 2026	Informal	State Public Notification requested

Other or unclassified · Resolved

Failure to Consult with StateViolation 8397 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 15, 2026 · period end April 7, 2026 · first reported June 26, 2026 · EPA return-to-compliance field April 7, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
67965	March 31, 2026	Informal	State Violation/Reminder Notice
67966	April 3, 2026	Informal	State Public Notification requested
67964	April 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 8394 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start June 1, 2025 · period end June 30, 2025 · first reported September 12, 2025 · EPA return-to-compliance field June 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
67958	August 13, 2025	Informal	State Violation/Reminder Notice
67959	August 16, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 8393 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2025 · period end June 30, 2025 · first reported September 12, 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
67956	August 13, 2025	Informal	State Violation/Reminder Notice
67957	August 16, 2025	Informal	State Public Notification requested
67960	January 7, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring, RegularViolation 8395 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2024 · period end March 5, 2026 · first reported March 25, 2026 · EPA return-to-compliance field March 5, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
67961	February 24, 2026	Informal	State Violation/Reminder Notice
67962	February 27, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 8391 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 29, 2023 · EPA return-to-compliance field September 30, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
67954	November 9, 2023	Informal	State Violation/Reminder Notice
67955	November 12, 2023	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