TAHOE KEYS WATER COMPANY

SOUTH LAKE TAHOE, CA · ~1,420 people served

Check your exact address → SOUTH LAKE TAHOE overview

100

Excellent

PurityRadar safety score

PWSID

CA0910015

State

California

City

SOUTH LAKE TAHOE

Population served

1,420

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 Jun 2022. Official EPA record →

Max contaminant level (MCL) · Combined radium-226/228 health-based began Oct 2020 Resolved

Max contaminant level (MCL) · EPA contaminant 2987 health-based began Oct 2009 Resolved

Max contaminant level (MCL) · EPA contaminant 2987 health-based began Jul 2009 Resolved

Max contaminant level (MCL) · EPA contaminant 2987 health-based began Apr 2009 Resolved

Max contaminant level (MCL) · EPA contaminant 2987 health-based began Jan 2009 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 2006 Resolved

Monitoring & reporting · Lead & Copper Rule began Jun 1993 Resolved

Recent enforcement actions

State action · SOX Jun 2022
State action · SFL Jan 2021
State action · SOX Jan 2019
State action · SOX Jul 2012
State action · SOX Jun 2009
State action · SFL May 2009
State action · SFL Dec 2008
State action · SOX Dec 2006

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Nov 2020

0.04 · max 0.04 mg/L · 3

Fluoride

1 station · latest Jul 2022

0.11 · max 0.11 mg/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA0910015 — 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.