WH

Water Hardness in 72730

Farmington, Arkansas · Washington County

30 PPM
1.8 GPG
Soft
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 5 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 5 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
5 verified treated-water sources
5 matched systems total for this ZIP; 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 Serving 72730

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

5 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.
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

Nearby Zip Codes

727043072753347277431727443372701307276230727693072703307276130727493072764307271730

What This Means For You

Recommendations are based on the displayed ZIP 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 Farmington, AR (72730).

Submit Your Data

Frequently Asked Questions

Is the water hard in Farmington, AR (72730)?

The average water hardness in 72730 is 30 PPM (1.8 GPG), which is classified as soft.

Do I need a water softener in 72730?

At 30 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 72730 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 72730?

Zip code 72730 in Farmington, Arkansas is served by 5 water systems.

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.

10 min read

How to Test Water Hardness at Home

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

8 min read