NV0000162 · Nevada
MCDERMITT WATER SYSTEM
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 5
- EPA health-based flag
- 4
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 1
Counties listed by EPA · Humboldt County, Nevada
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 5 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.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 1106101 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2021 · period end July 31, 2021 · first reported March 2, 2022 · EPA return-to-compliance field July 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 186410 August 11, 2021 Resolving State Compliance achieved 186408 February 25, 2022 Informal State Violation/Reminder Notice 186409 February 25, 2022 Informal State Public Notification requested EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 1106100 · Arsenic · Arsenic RuleNoncompliance period start July 1, 2021 · period end September 30, 2021 · first reported November 17, 2021 · EPA return-to-compliance field September 30, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 186403 July 7, 2021 Informal State Violation/Reminder Notice 186404 July 7, 2021 Informal State Public Notification requested 186405 July 8, 2021 Informal State Public Notification received 186407 December 2, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 1106099 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2021 · period end June 30, 2021 · first reported August 18, 2021 · EPA return-to-compliance field June 30, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 186403 July 7, 2021 Informal State Violation/Reminder Notice 186404 July 7, 2021 Informal State Public Notification requested 186405 July 8, 2021 Informal State Public Notification received 186407 December 2, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 1106098 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2021 · period end March 31, 2021 · first reported May 21, 2021 · EPA return-to-compliance field March 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 186402 March 17, 2021 Informal State Public Notification received 186400 March 22, 2021 Informal State Violation/Reminder Notice 186401 March 22, 2021 Informal State Public Notification requested 186407 December 2, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 1106097 · Arsenic · Arsenic RuleNoncompliance period start October 1, 2020 · period end December 31, 2020 · first reported February 17, 2021 · EPA return-to-compliance field December 31, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 186399 January 7, 2021 Informal State Public Notification received 186397 January 11, 2021 Informal State Violation/Reminder Notice 186398 January 11, 2021 Informal State Public Notification requested 186407 December 2, 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