MT. KONOCTI MUTUAL WATER COMPANY

KELSEYVILLE, CA · ~4,360 people served

Check your exact address → KELSEYVILLE overview

100

Excellent

PurityRadar safety score

PWSID

CA1710014

State

California

City

KELSEYVILLE

Population served

4,360

Primary source

Surface water

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

Latest detections from EPA’s UCMR5 monitoring (through Nov 2024). Levels in parts per trillion (ppt).

Lithium

26,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2021. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2020 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2019 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2019 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2018 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2015 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2015 Resolved

Recent enforcement actions

State action · SOX Aug 2021
State action · SFL Jan 2021
State action · SOX Jan 2020
State action · SOX Jan 2020
State action · SOX Jan 2020
State action · SFL Jan 2019
State action · SOX Oct 2015
State action · SOX Apr 2015

This profile is built from EPA public records for system CA1710014 — 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.