Water Hardness in Fayetteville, AR

Q: Do I need a water softener in Fayetteville, AR?

At a citywide weighted average of 30 PPM, Fayetteville has relatively soft water. A water softener is generally not necessary.

Q: How many water systems serve Fayetteville, AR?

Fayetteville, Arkansas has 8 matched water systems across 2 zip codes.

Arkansas · 2 zip codes · 8 matched water systems

30 PPM

1.8 GPG

Soft

0Soft60120180300+

Verified — Annual Water Quality Report

City avg (weighted): 30 PPM

Dataset updated March 9, 20268 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading

Fayetteville Waterworks

AR0000569

Water source: surface water

Serves: 116,398

USGS environmental estimate: 62 PPM

Source context

How this city reading is built

This city reading is a weighted rollup across 8 matched water systems and 2 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis

8 verified treated-water sources

8 matched systems total for this city; treated-water reports are prioritized when available.

Water source profile

Primarily surface water

Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.

Data recency

March 9, 2026

Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems in Fayetteville

These systems are matched to Fayetteville, AR. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

8 water systems

PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.

Water System	Source	Hardness	Pop. Served	Data Source
Fayetteville Waterworks AR0000569	surface water	30 PPM Soft USGS estimate: 62 PPM	116,398	Verified — Annual Water Quality Report
Springdale Water Utilities AR0000575	surface water	30 PPM Soft USGS estimate: 140 PPM	98,948	Verified — Annual Water Quality Report
Washington Water Authority Wwa AR0000574	surface water	30 PPM Soft USGS estimate: 125 PPM	20,140	Verified — Annual Water Quality Report
Madison Co Water Facilities Bd AR0000349	surface water	30 PPM Soft USGS estimate: 71 PPM	11,435	Verified — Annual Water Quality Report
Tontitown Waterworks AR0000566	surface water	30 PPM Soft USGS estimate: 125 PPM	7,355	Verified — Annual Water Quality Report

Fayetteville Waterworks

AR0000569

Soft

30 PPMsurface water116,398 servedVerified — Annual Water Quality Report

Source water: 62 PPM

Springdale Water Utilities

AR0000575

Soft

30 PPMsurface water98,948 servedVerified — Annual Water Quality Report

Source water: 140 PPM

Washington Water Authority Wwa

AR0000574

Soft

30 PPMsurface water20,140 servedVerified — Annual Water Quality Report

Source water: 125 PPM

Madison Co Water Facilities Bd

AR0000349

Soft

30 PPMsurface water11,435 servedVerified — Annual Water Quality Report

Source water: 71 PPM

Tontitown Waterworks

AR0000566

Soft

30 PPMsurface water7,355 servedVerified — Annual Water Quality Report

Source water: 125 PPM

Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Fayetteville, AR

7270130 7270330

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft water!

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Fayetteville, AR.

Submit Your Data

Frequently Asked Questions

How hard is the water in Fayetteville, AR?

The citywide weighted average water hardness in Fayetteville, AR is 30 PPM (1.8 GPG), classified as soft. This is based on 8 matched water systems.

Do I need a water softener in Fayetteville, AR?

At 30 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Fayetteville, AR safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve Fayetteville, AR?

Fayetteville, Arkansas is served by 8 matched water systems across 2 zip codes.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

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How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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