DOUGLAS COUNTY CARSON VALLEY SYSTEM

MINDEN, NV · ~6,488 people served

Check your exact address → MINDEN overview

100

Excellent

PurityRadar safety score

PWSID

NV0002216

State

Nevada

City

MINDEN

Population served

6,488

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

Latest detections from EPA’s UCMR5 monitoring (through Aug 2023). Levels in parts per trillion (ppt).

Lithium

16,800 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2011. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Dec 2010 Resolved

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

Monitoring & reporting · Arsenic began Apr 2008 Resolved

Monitoring & reporting · Arsenic began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2007 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2005 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2001 Resolved

Monitoring & reporting · Total coliform began Sep 2001 Resolved

Recent enforcement actions

State action · SIF Jan 2011
State action · SOX Jan 2011
State action · SIA Dec 2010
State action · SIE Dec 2010
State action · SOX Mar 2009
State action · SIF Mar 2009
State action · SIA Sep 2008
State action · SIA Sep 2008

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

2 stations · latest Oct 2023

10.6 · max 14.6 mg/l as N · 30

Fluoride

2 stations · latest Oct 2023

1.26 · max 1.38 mg/l · 17

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 NV0002216 — 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.