CRESCENT VALLEY WATER SYSTEM

EUREKA, NV · ~340 people served

Check your exact address → EUREKA overview

100

Excellent

PurityRadar safety score

PWSID

NV0000043

State

Nevada

City

EUREKA

Population served

340

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 Nov 2019. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2016 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2016 Resolved

Monitoring & reporting · Arsenic began Apr 2011 Resolved

Monitoring & reporting · Arsenic began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2006 Resolved

Monitoring & reporting · Total coliform began Jul 2006 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2006 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2006 Resolved

Recent enforcement actions

State action · SOX Nov 2019
State action · SIA Feb 2019
State action · SIE Feb 2019
State action · SOY Dec 2012
State action · SOX Feb 2012
State action · SIA Dec 2011
State action · SIE Dec 2011
State action · SOY Dec 2010

This profile is built from EPA public records for system NV0000043 — 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.