Hard water in Streator, IL
Reported by IL American-Streator · June 2022
- IL typical
- 139 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
Streator water measures 253 mg/L (14.8 gpg) of hardness, very hard by USGS standards. The number comes from IL American-Streator, dated June 2022.
Streator sits 114 mg/L above the typical Illinois figure of 139. Of the 10 nearest cities we track, 7 have softer water and 3 have harder. The range nearby runs from 89 mg/L in Bloomington to 378 in Yorkville.
What 253 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 253 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 × 14.8 gpg = 3,330 grains a day. A 24,000-grain unit regenerates about every 7 days.
EPA record for Streator's water system
No health-based violations since 2016
Serves about 19,000 people from surface water.
- Health-based
- 0
- Monitoring or reporting
- 1
- 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 Streator water hard?
Yes. It measures about 253 mg/L (14.8 grains per gallon), which the USGS classes as very hard.
What is the water hardness in Streator in grains per gallon?
About 14.8 gpg. One grain per gallon equals 17.1 mg/L, so 253 mg/L divided by 17.1 gives 14.8.
What size water softener do I need in Streator?
For 3 people using 75 gallons each per day, 14.8 gpg works out to about 3,330 grains a day. A 24,000-grain softener covers that with a regeneration about every 7 days.
Has the Streator water system had EPA violations?
EPA records show no health-based violations for IL American-Streator since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.
Nearby cities
- Pontiac191 mg/LVery hard
- Morris285 mg/LVery hard
- Coal City98 mg/LModerately hard
- Channahon193 mg/LVery hard
- Yorkville378 mg/LVery hard
- Normal327 mg/LVery hard
- Washington230 mg/LVery hard
- Joliet244 mg/LVery hard
- Bloomington89 mg/LModerately hard
- Oswego235 mg/LVery hard
Hardness data: TapWaterData US Water Hardness (utility report, June 16, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.