How hard is the water in Independence, MO?

Tap water hardness
118mg/L
6.9gpg
Moderately hard

Calculated from the utility's calcium and magnesium results · October 2024

MO typical
121 mg/L
EPA health violations since 2016
0
Softener for 3 people
24k grain
Data
Calculated from utility data

Independence water measures 118 mg/L (6.9 gpg) of hardness, moderately hard by USGS standards. TapWaterData worked it out from the calcium and magnesium levels the local utility reports (October 2024).

Independence on the hardness scale, with nearby cities
060120180240300360+MO typical 121Lee's Summit: 97 mg/LLee's Summit 97Raytown: 116 mg/LRaytown 116Kansas City: 116 mg/LKansas City 116North Kansas City: 116 mg/LNorth Kansas City 116Gladstone: 117 mg/LGladstone 117Excelsior Springs: 154 mg/LExcelsior Springs 154Liberty: 162 mg/LLiberty 162Oak Grove: 176 mg/LOak Grove 176Blue Springs: 310 mg/LBlue Springs 310Grandview: 310 mg/LGrandview 310Independence 118mg/L as calcium carbonate060120180240300360+MO 121Lee's Summit: 97 mg/LLee's Summ. 97Raytown: 116 mg/LRaytown 116Kansas City: 116 mg/LKansas City 116North Kansas City: 116 mg/LNorth Kans. 116Liberty: 162 mg/LLiberty 162Blue Springs: 310 mg/LBlue Sprin. 310118 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Independence sits close to the typical Missouri figure of 121 mg/L. Of the 10 nearest cities we track, 5 have softer water and 5 have harder. The range nearby runs from 97 mg/L in Lee's Summit to 310 in Blue Springs.

What 118 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 Independence

3 people × 75 gallons a day × 6.9 gpg = 1,555 grains a day. A 24,000-grain unit regenerates about every 15 days.

Size it for your household

EPA record for Independence's water system

Independence PWS · PWSID MO1010399

No health-based violations since 2016

Serves about 120,000 people from groundwater.

Health-based
0
Monitoring or reporting
1
Open now
0

EPA lists this system as serving Independence.

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 Independence water hard?

Somewhat. It measures about 118 mg/L (6.9 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Independence in grains per gallon?

About 6.9 gpg. One grain per gallon equals 17.1 mg/L, so 118 mg/L divided by 17.1 gives 6.9.

What size water softener do I need in Independence?

For 3 people using 75 gallons each per day, 6.9 gpg works out to about 1,555 grains a day. A 24,000-grain softener covers that with a regeneration about every 15 days.

Has the Independence water system had EPA violations?

EPA records show no health-based violations for Independence PWS since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.

Nearby cities

All 90 cities in Missouri

Hardness data: TapWaterData US Water Hardness (calculated from utility data, October 18, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.