Is tap water safe in Sparks?

EPA SDWIS shows no active health-based violation in this profile's reporting window. That is not the same as proving every contaminant is absent, and federal data can lag state and utility records.

How hard is the water in Sparks, NV?

Nearby USGS observations produce an estimate of 103.5 ppm (6.1 grains per gallon), classified as moderately hard. This is not a tap measurement.

Do I need a water softener in ZIP code 89434?

There is no high-hardness trigger in this profile. Confirm conditions with an at-home hardness test before purchasing equipment.

City water profile

Sparks water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Sparks, Nevada.

Median indexed hardness

71PPM

3 indexed ZIPs

Range 70.6–103.5 PPM

State comparison: 156 PPM below
State hardness rank: #40 of 44
Matched utilities: 1
Active health records: 0

City summary

What the indexed records say

Sparks has 3 published ZIP profiles across Washoe County and Storey County. The indexed median is 71 PPM, compared with 227 PPM across Nevada.

Among the 44 Nevadacities with an indexed median, Sparks ranks #40from highest to lowest. Across all 98 state ZIP profiles, available estimates run from 9.6to 335 PPM.

The 70.6–103.5 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard3 ZIPs

Hard0 ZIPs

Very hard0 ZIPs

3 of 3 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 9.1 miles
Profiles with evidence: 3/3

Confidence labels

High: 0Moderate: 3Low: 0

Observation window: Jan 5, 2016 to Apr 14, 2026.

ZIP directory

Water reports in Sparks

Open a ZIP for site-level provenance and measurements.

ZIP code

89431

Moderately Hard

70.6 PPM

Nearest site: 10.5 mi
Confidence: Moderate

View full ZIP evidence →

ZIP code

89434

Moderately Hard

103.5 PPM

Nearest site: 1.2 mi
Confidence: Moderate

View full ZIP evidence →

ZIP code

89436

Moderately Hard

70.6 PPM

Nearest site: 9.1 mi
Confidence: Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Truckee Meadows Water Authority

PWSID NV0000190

Surface water

System population served: 442,000
Last reported: Jun 17, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

No violation records are included in the current lookback window.

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Nevada communities

Empire

Washoe County

87 PPM median

Gerlach

Washoe County

10 PPM median

Reno

Washoe County

64 PPM median

Glenbrook

Douglas County

77 PPM median

Kingsbury

Douglas County

60 PPM median

Pahrump

Nye County

92 PPM median

Search all 44 Nevada cities →

Questions people ask

About water in Sparks

Is the water hard?

The indexed city median is 71 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.