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Water Hardness in El Dorado, AR

Arkansas · 1 zip codes · 14 matched water systems

24 PPM
1.4 GPG
Soft
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 202614 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 14 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
14 USGS-backed sources
14 matched systems total for this city; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 El Dorado

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

14 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.
El Dorado Waterworks
AR0000550
Soft
24 PPMgroundwater17,932 servedHigh Confidence — USGS Monitoring
Parkers Chapel Public Water
AR0000560
Soft
24 PPMgroundwater2,391 servedHigh Confidence — USGS Monitoring
Wildwood Water Association
AR0000562
Soft
24 PPMgroundwater1,350 servedHigh Confidence — USGS Monitoring
Faircrest Water Association
AR0000544
Soft
24 PPMgroundwater1,329 servedHigh Confidence — USGS Monitoring
Old Union Public Water Authority
AR0000559
Soft
24 PPMgroundwater1,200 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in El Dorado, AR

7173024

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 El Dorado, AR.

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Frequently Asked Questions

How hard is the water in El Dorado, AR?

The citywide weighted average water hardness in El Dorado, AR is 24 PPM (1.4 GPG), classified as soft. This is based on 14 matched water systems.

Do I need a water softener in El Dorado, AR?

At 24 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in El Dorado, 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 El Dorado, AR?

El Dorado, Arkansas is served by 14 matched water systems across 1 zip code.

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.

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