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Water system · PWSID CA3110028

NORTHSTAR C.S.D.

100
Excellent
PurityRadar safety score

PWSID

CA3110028

State

California

City

TRUCKEE

Population served

15,452

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

3

Violations on record

0

Unaddressed

3

Health-based

5

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2006. Official EPA record →

Treatment technique · EPA contaminant 0200 health-based began May 2006 Resolved
Treatment technique · EPA contaminant 0200 health-based began Aug 1993 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jun 1993 Resolved

Recent enforcement actions

  • State action · SFL Dec 2006
  • State action · SOX Jun 2006
  • State action · SOX Jan 1997
  • State action · SOX Aug 1994
  • State action · SFL Sep 1993

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

Arsenic

1 station · latest Jun 2022

1.4 · max 1.4 ug/l · 1

Fluoride

1 station · latest Jun 2022

0.05 · max 0.05 mg/l · 1

Uranium

1 station · latest Jun 2022

1.03 · max 1.03 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 CA3110028 — 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.