Hard water in Channahon, IL
Reported by Channahon · June 2022
- IL typical
- 139 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
The water in Channahon carries roughly 193 mg/L of dissolved calcium and magnesium, or 11.3 grains per gallon. That is very hard water. The number comes from Channahon, dated June 2022. Reports for this system disagree, with values from 193 to 250 mg/L.
Channahon sits 54 mg/L above the typical Illinois figure of 139. Of the 10 nearest cities we track, 2 have softer water and 8 have harder. The range nearby runs from 98 mg/L in Coal City to 465 in Crest Hill.
What 193 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 193 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 × 11.3 gpg = 2,540 grains a day. A 24,000-grain unit regenerates about every 9 days.
EPA record for Channahon's water system
No health-based violations since 2016
Serves about 13,380 people from groundwater.
- 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 Channahon water hard?
Yes. It measures about 193 mg/L (11.3 grains per gallon), which the USGS classes as very hard.
What is the water hardness in Channahon in grains per gallon?
About 11.3 gpg. One grain per gallon equals 17.1 mg/L, so 193 mg/L divided by 17.1 gives 11.3.
What size water softener do I need in Channahon?
For 3 people using 75 gallons each per day, 11.3 gpg works out to about 2,540 grains a day. A 24,000-grain softener covers that with a regeneration about every 9 days.
Has the Channahon water system had EPA violations?
EPA records show no health-based violations for Channahon since 2016. There were also 2 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Joliet244 mg/LVery hard
- Morris285 mg/LVery hard
- Coal City98 mg/LModerately hard
- Crest Hill465 mg/LVery hard
- Manhattan372 mg/LVery hard
- New Lenox137 mg/LHard
- Romeoville303 mg/LVery hard
- Lockport458 mg/LVery hard
- Oswego235 mg/LVery hard
- Yorkville378 mg/LVery hard
Hardness data: TapWaterData US Water Hardness (utility report, June 8, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.