Mitomkai Tribal Water System

Willits, CA · ~300 people served

Check your exact address → Willits overview

100

Excellent

PurityRadar safety score

PWSID

090605120

State

California

City

Willits

Population served

300

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Sep 2025 Unaddressed

Reporting · Lead & Copper Rule began Aug 2025 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2024 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2023 Resolved

Monitoring · Lead & Copper Rule began Dec 2022 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2022 Resolved

Monitoring & reporting · Nitrate began Jan 2022 Resolved

Monitoring & reporting · Gross alpha began Jan 2015 Resolved

Monitoring & reporting · Gross alpha began Oct 2014 Resolved

Monitoring & reporting · Total coliform began Sep 2014 Resolved

Monitoring & reporting · Gross alpha began Jul 2014 Resolved

Monitoring & reporting · Total coliform began Mar 2014 Resolved

Recent enforcement actions

EPA/federal action · EIA Dec 2025
EPA/federal action · EOX Sep 2025
EPA/federal action · EIA Apr 2025
EPA/federal action · EIA Apr 2025
EPA/federal action · EOX Jan 2025
EPA/federal action · EOX Jan 2024
EPA/federal action · EOX Aug 2023
EPA/federal action · EOX Feb 2023

This profile is built from EPA public records for system 090605120 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.