Water softener installation in Oswego, IL
Oswego's drinking water comes from the village's own wells. We start from the latest water report Oswego published (2025 data), then work out what your home needs on a short phone call.
Where Oswego's water comes from
Oswego's water comes from the village's own wells, according to Oswego's water quality report (2025 data).
In October 2024, the Village of Oswego's newsroom reported that the DuPage Water Commission had signed contracts to supply Lake Michigan water to Montgomery, Oswego and Yorkville (the WaterLink project). Construction is scheduled to run from 2025 to 2028, and after that the communities can connect. Source: Village of Oswego's newsroom. If your water changes, we recheck your numbers on every Free Water Check.
What Oswego publishes about its water
| What | What it says | Source |
|---|---|---|
| Hardness | About 15 grains per gallon. On the U.S. Geological Survey's scale that counts as very hard. See the scale. "Very hard" starts near 10.5 grains per gallon on that scale, and Oswego's water is under our 25-grain City Water Package line. |
|
| Disinfectant | Chloramine, which is chlorine combined with ammonia, not plain chlorine. We're confirming with our supplier which carbon handles it, and we make no taste or smell promise until that is settled. |
|
| Newest report | 2025 data year. Towns publish a new report every year, so we pull the latest one on your call. |
What that means for your Oswego home
On the U.S. Geological Survey's scale, Oswego's water counts as very hard. "Very hard" starts near 10.5 grains per gallon on that scale, and Oswego's water is under our 25-grain City Water Package line. Many homeowners soften water like this to cut spotting and scale. It is a choice, not an emergency.
The City Water Package is $3,299 installed. It softens the water where it enters your home and a drinking-water faucet at your kitchen sink comes with it. We size it on your Free Water Check, using your household size and your town's report.
One thing is different here: Oswego's report lists chloramine, not plain chlorine. We're confirming with our supplier which carbon handles it, and we make no taste or smell promise until that is settled.
Questions from Oswego homeowners
Where does Oswego's tap water come from?
Oswego's water comes from the village's own wells, according to Oswego's water quality report (2025 data).
How hard is Oswego's water?
Oswego publishes about 15 grains per gallon. On the U.S. Geological Survey's scale that counts as very hard. See the source. "Very hard" starts near 10.5 grains per gallon on that scale, and Oswego's water is under our 25-grain City Water Package line.
Does Oswego use chlorine or chloramine?
Oswego's report (2025 data) lists chloramine as its disinfectant. We're confirming with our supplier which carbon handles it, and we make no taste or smell promise until that is settled.
Where can I read Oswego's official water report?
Here: Oswego's water quality report (2025 data). Water systems must deliver this report to customers every year by July 1.
Do I need a water softener in Oswego?
On the U.S. Geological Survey's scale, Oswego's water counts as very hard. "Very hard" starts near 10.5 grains per gallon on that scale, and Oswego's water is under our 25-grain City Water Package line. Many homeowners soften water like this to cut spotting and scale. It is a choice, not an emergency.
What does whole-home water treatment cost in Oswego?
Our City Water Package is $3,299 installed for a standard install. The standard installation, the permit where your town requires one, and tax are included. A private well, or water over 25 grains per gallon, starts at $4,499, quoted in writing after a water test. Anything that could change a price is listed on How it works.
Do you install in Oswego?
Yes, in single-family homes and townhomes with their own water line in Oswego. Condos and apartments share a building line, so we can't yet. You don't need a sales visit: a short phone call, four photos, and one price in writing.
Is Oswego switching to Lake Michigan water?
In October 2024, the Village of Oswego's newsroom reported that the DuPage Water Commission had signed contracts to supply Lake Michigan water to Montgomery, Oswego and Yorkville (the WaterLink project). Construction is scheduled to run from 2025 to 2028, and after that the communities can connect. Source: Village of Oswego's newsroom.
If your water changes, we recheck your numbers on every Free Water Check, so we never size a system to an old number.
Check your Oswego water
Tell us your ZIP code and where your water comes from. We'll pull your town's numbers before we call.
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Get your Free Water Check
A 10 to 15 minute phone call about your water and your price. No home visit.