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Water system · PWSID CA1710002

GOLDEN STATE WATER CO.-CLEARLAKE SYSTEM

RANCHO CORDOVA, CA · ~4,644 people served

Check your exact address → RANCHO CORDOVA overview
100
Excellent
PurityRadar safety score

PWSID

CA1710002

State

California

City

RANCHO CORDOVA

Population served

4,644

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 Dec 2023). Levels in parts per trillion (ppt).

Lithium

25,500 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

1

Health-based

2

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 1994. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Nov 1994 Resolved

Recent enforcement actions

  • State action · SOX Dec 1994
  • State action · SIE Dec 1994

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

Manganese

1 station · latest Apr 2023

5.65 · max 5.65 ug/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 CA1710002 — 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.