Hard water in Volo, IL
Reported by Volo · April 2024
- IL typical
- 139 mg/L
- EPA health violations since 2016
- 1
- Softener for 3 people
- 24k grain
- Data
- Utility report
The water in Volo carries roughly 146 mg/L of dissolved calcium and magnesium, or 8.5 grains per gallon. That is hard water. The number comes from Volo, dated April 2024.
Volo sits close to the typical Illinois figure of 139 mg/L. Of the 10 nearest cities we track, 1 has softer water and 8 have harder. The range nearby runs from 134 mg/L in Hawthorn Woods to 573 in Lake Barrington.
What 146 mg/L means at home
Expect white crust on faucets and showerheads, plus spots on dishes that come out of the dishwasher.
Kettles collect scale quickly. Water heaters build up sediment at the bottom of the tank, which makes them work harder over time.
Soap and detergent need a little more to lather, and soap scum shows up in the tub.
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 146 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 × 8.5 gpg = 1,915 grains a day. A 24,000-grain unit regenerates about every 12 days.
EPA record for Volo's water system
1 health-based violation since 2016
Serves about 6,629 people from surface water.
- Health-based
- 1
- Monitoring or reporting
- 23
- Open now
- 0
| Contaminant or rule | Violations | Period | Status |
|---|---|---|---|
| Barium | 1 | 2018 | Resolved |
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 Volo water hard?
Yes. It measures about 146 mg/L (8.5 grains per gallon), which the USGS classes as hard.
What is the water hardness in Volo in grains per gallon?
About 8.5 gpg. One grain per gallon equals 17.1 mg/L, so 146 mg/L divided by 17.1 gives 8.5.
What size water softener do I need in Volo?
For 3 people using 75 gallons each per day, 8.5 gpg works out to about 1,915 grains a day. A 24,000-grain softener covers that with a regeneration about every 12 days.
Has the Volo water system had EPA violations?
EPA records show 1 health-based violation for Volo since 2016, involving Barium. There were also 23 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Lakemoor223 mg/LVery hard
- Wauconda146 mg/LHard
- Johnsburg353 mg/LVery hard
- Grayslake250 mg/LVery hard
- McHenry384 mg/LVery hard
- Lake Villa205 mg/LVery hard
- Hawthorn Woods134 mg/LHard
- Mundelein250 mg/LVery hard
- Lake Barrington573 mg/LVery hard
- Cary378 mg/LVery hard
Hardness data: TapWaterData US Water Hardness (utility report, April 3, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.