LAKE COUNTY CSA 2 - SPRING VALLEY

LAKEPORT, CA · ~1,531 people served

Check your exact address → LAKEPORT overview

100

Excellent

PurityRadar safety score

PWSID

CA1710018

State

California

City

LAKEPORT

Population served

1,531

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

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 Mar 2018. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2010 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2009 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2009 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2009 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2008 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jul 1996 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jul 1993 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jun 1993 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jan 1993 Resolved

Monitoring & reporting · EPA contaminant 0200 began Jan 1992 Resolved

Recent enforcement actions

State action · SOX Mar 2018
State action · SOX Mar 2018
State action · SFL Nov 2012
State action · SFL Apr 2010
State action · SOX Apr 2010
State action · SFL Oct 2009
State action · SOX Jul 2007
State action · SFL Jun 2007

This profile is built from EPA public records for system CA1710018 — 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.