How hard is the water in Prairie Grove, AR?

Tap water hardness
68mg/L
4.0gpg
Moderately hard

Calculated from the utility's calcium and magnesium results · May 2022

AR typical
39 mg/L
Softener for 3 people
24k grain
Data
Calculated from utility data

Tap water in Prairie Grove has about 68 mg/L of hardness, which is 4.0 grains per gallon. On the USGS scale that counts as moderately hard. TapWaterData worked it out from the calcium and magnesium levels the local utility reports (May 2022).

Prairie Grove on the hardness scale, with nearby cities
060120180240300360+AR typical 39Centerton: 55 mg/LCenterton 55Bentonville: 55 mg/LBentonville 55Cave Springs: 62 mg/LCave Springs 62Lowell: 62 mg/LLowell 62Rogers: 67 mg/LRogers 67Farmington: 77 mg/LFarmington 77Fayetteville: 77 mg/LFayetteville 77Springdale: 77 mg/LSpringdale 77Bella Vista: 107 mg/LBella Vista 107Siloam Springs: 113 mg/LSiloam Springs 113Prairie Grove 68mg/L as calcium carbonate060120180240300360+AR 39Cave Springs: 62 mg/LCave Sprin. 62Lowell: 62 mg/LLowell 62Farmington: 77 mg/LFarmington 77Fayetteville: 77 mg/LFayettevil. 77Springdale: 77 mg/LSpringdale 77Siloam Springs: 113 mg/LSiloam Spr. 11368 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 68 mg/L, Prairie Grove is 29 mg/L above the typical Arkansas figure of 39. Of the 10 nearest cities we track, 5 have softer water and 5 have harder. The range nearby runs from 55 mg/L in Centerton to 113 in Siloam Springs.

What 68 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 Prairie Grove

3 people × 75 gallons a day × 4.0 gpg = 889 grains a day. A 24,000-grain unit regenerates about every 27 days.

Size it for your household

EPA record for Prairie Grove's water system

We could not match Prairie Grove to a community water system in EPA's records. Your water bill or the yearly Consumer Confidence Report names the system and its ID.

Questions

Is Prairie Grove water hard?

Somewhat. It measures about 68 mg/L (4.0 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Prairie Grove in grains per gallon?

About 4.0 gpg. One grain per gallon equals 17.1 mg/L, so 68 mg/L divided by 17.1 gives 4.0.

What size water softener do I need in Prairie Grove?

For 3 people using 75 gallons each per day, 4.0 gpg works out to about 889 grains a day. A 24,000-grain softener covers that with a regeneration about every 27 days.

Nearby cities

All 46 cities in Arkansas

Hardness data: TapWaterData US Water Hardness (calculated from utility data, May 4, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.