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Water system · PWSID NV0000190

TRUCKEE MEADOWS WATER AUTHORITY

RENO, NV · ~442,000 people served

Check your exact address → RENO overview
73
Good
PurityRadar safety score

PWSID

NV0000190

State

Nevada

City

RENO

Population served

442,000

Primary source

Surface water

Score history

▼ 27 points — the score moved from 100 to 73 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 73

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 Sep 2025). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

13 ppt

limit 10 ppt

Above EPA limit · 1.3×

PFOA

Perfluorooctanoic acid

4.9 ppt

limit 4 ppt

Above EPA limit · 1.2×

PFOS

Perfluorooctanesulfonic acid

4.9 ppt

limit 4 ppt

Above EPA limit · 1.2×

Lithium

9,710 ppt

limit —

No federal limit

PFBA

6.8 ppt

limit —

No federal limit

PFPeA

4.8 ppt

limit —

No federal limit

PFBS

3.9 ppt

limit —

No federal limit

PFHpA

3.9 ppt

limit —

No federal limit

PFHxA

3.2 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

1

Health-based

1

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 1996. Official EPA record →

Treatment technique · EPA contaminant 0200 health-based began Jan 1992 Resolved

Recent enforcement actions

  • State action · SOX Jul 1996

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

10 stations · latest Jan 2026

26 · max 310 ug/L · 88

Arsenic

11 stations · latest Jan 2026

120 · max 290 ug/L · 48

Copper

8 stations · latest Jan 2026

3.1 · max 8 ug/L · 30

Fluoride

9 stations · latest Jan 2026

335 · max 600 ug/L · 29

Nitrate

6 stations · latest Jan 2026

0.17 · max 0.78 mg/L · 21

Uranium

11 stations · latest Sep 2023

3.76 · max 44 ug/l · 11

Atrazine

2 stations · latest Jun 2023

2.24 · max 2.76 ng/l · 2

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 NV0000190 — 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.