How hard is the water in Cave Springs, AR?

Tap water hardness
62mg/L
3.6gpg
Moderately hard

Reported by Rogers Water Utilities · June 2025

AR typical
39 mg/L
EPA health violations since 2016
0
Softener for 3 people
24k grain
Data
Utility report

The water in Cave Springs carries roughly 62 mg/L of dissolved calcium and magnesium, or 3.6 grains per gallon. That is moderately hard water. The number comes from Rogers Water Utilities, dated June 2025.

Cave Springs on the hardness scale, with nearby cities
060120180240300360+AR typical 39Bentonville: 55 mg/LBentonville 55Centerton: 55 mg/LCenterton 55Lowell: 62 mg/LLowell 62Rogers: 67 mg/LRogers 67Prairie Grove: 68 mg/LPrairie Grove 68Springdale: 77 mg/LSpringdale 77Fayetteville: 77 mg/LFayetteville 77Farmington: 77 mg/LFarmington 77Bella Vista: 107 mg/LBella Vista 107Siloam Springs: 113 mg/LSiloam Springs 113Cave Springs 62mg/L as calcium carbonate060120180240300360+AR 39Bentonville: 55 mg/LBentonville 55Centerton: 55 mg/LCenterton 55Lowell: 62 mg/LLowell 62Rogers: 67 mg/LRogers 67Springdale: 77 mg/LSpringdale 77Bella Vista: 107 mg/LBella Vista 10762 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Cave Springs sits 23 mg/L above the typical Arkansas figure of 39. Of the 10 nearest cities we track, 2 have softer water and 7 have harder. The range nearby runs from 55 mg/L in Bentonville to 113 in Siloam Springs.

What 62 mg/L means at home

You may see faint white spots on glasses and shower doors after the water dries.

Scale builds up slowly. A kettle or coffee maker needs descaling now and then, maybe every few months.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Optional. Plenty of households at this level live with it and descale the kettle now and then.

Water softener

Worth a look if spots on glass bother you, or if your tankless water heater manual asks for softer water.

Carbon filter

Improves taste and removes chlorine. It leaves calcium and magnesium in place.

Softener size for Cave Springs

3 people × 75 gallons a day × 3.6 gpg = 821 grains a day. A 24,000-grain unit regenerates about every 29 days.

Size it for your household

EPA record for Cave Springs's water system

Rogers Water Utilities · PWSID AR0000055

No health-based violations since 2016

Serves about 81,443 people from surface water.

Health-based
0
Monitoring or reporting
0
Open now
0

TapWaterData ties Cave Springs to this system. EPA's service-area records do not name Cave Springs, so check the utility printed on your water bill.

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Cave Springs water hard?

Somewhat. It measures about 62 mg/L (3.6 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Cave Springs in grains per gallon?

About 3.6 gpg. One grain per gallon equals 17.1 mg/L, so 62 mg/L divided by 17.1 gives 3.6.

What size water softener do I need in Cave Springs?

For 3 people using 75 gallons each per day, 3.6 gpg works out to about 821 grains a day. A 24,000-grain softener covers that with a regeneration about every 29 days.

Has the Cave Springs water system had EPA violations?

EPA records show no health-based violations for Rogers Water Utilities since 2016.

Nearby cities

All 46 cities in Arkansas

Hardness data: TapWaterData US Water Hardness (utility report, June 26, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.