Hard water in Lake Villa, IL
Reported by Lake Villa · June 2022
- IL typical
- 139 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
Tap water in Lake Villa has about 205 mg/L of hardness, which is 12.0 grains per gallon. On the USGS scale that counts as very hard. The number comes from Lake Villa, dated June 2022. Reports for this system disagree, with values from 205 to 288 mg/L.
At 205 mg/L, Lake Villa is 66 mg/L above the typical Illinois figure of 139. Of the 10 nearest cities we track, 3 have softer water and 7 have harder. The range nearby runs from 119 mg/L in Waukegan to 384 in McHenry.
What 205 mg/L means at home
Scale forms fast here. Kettles and coffee makers need regular descaling, and showerheads clog unless you clean them.
Tank water heaters collect mineral sediment that insulates the water from the burner, so flushing the tank matters more than usual.
Dishes and glass shower doors spot easily. Soap scum and a dull film on hair or laundry are common complaints.
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
At 205 mg/L most of the trouble is scale, and only a few things deal with it.
Ion-exchange water softener
The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.
Salt-free conditioner
No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.
Reverse osmosis or carbon filter
Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.
3 people × 75 gallons a day × 12.0 gpg = 2,698 grains a day. A 24,000-grain unit regenerates about every 8 days.
EPA record for Lake Villa's water system
No health-based violations since 2016
Serves about 8,829 people from surface water.
- Health-based
- 0
- Monitoring or reporting
- 2
- Open now
- 0
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 Lake Villa water hard?
Yes. It measures about 205 mg/L (12.0 grains per gallon), which the USGS classes as very hard.
What is the water hardness in Lake Villa in grains per gallon?
About 12.0 gpg. One grain per gallon equals 17.1 mg/L, so 205 mg/L divided by 17.1 gives 12.0.
What size water softener do I need in Lake Villa?
For 3 people using 75 gallons each per day, 12.0 gpg works out to about 2,698 grains a day. A 24,000-grain softener covers that with a regeneration about every 8 days.
Has the Lake Villa water system had EPA violations?
EPA records show no health-based violations for Lake Villa since 2016. There were also 2 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Grayslake250 mg/LVery hard
- Volo146 mg/LHard
- Gurnee250 mg/LVery hard
- Lakemoor223 mg/LVery hard
- Johnsburg353 mg/LVery hard
- Wauconda146 mg/LHard
- Mundelein250 mg/LVery hard
- Libertyville250 mg/LVery hard
- Waukegan119 mg/LModerately hard
- McHenry384 mg/LVery hard
Hardness data: TapWaterData US Water Hardness (utility report, June 6, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.