Water filtration in Wilmington
City of Wilmington Water Department does not publish a hardness figure for Wilmington. So rather than repeat a number nobody has measured, we test the water at your property before recommending anything. Lime softened.
See every city in Clinton County.
Local water profile
City of Wilmington Water Department does not publish a hardness figure, so we test on site.
Neighborhoods we serve
- Downtown Wilmington
- Airborne Road area
How hard is the water in Wilmington?
City of Wilmington Water Department does not publish a finished-water hardness figure, so we test on site rather than quote a number nobody has measured.
- Hardness
- Not published by the utility
- Source
- Surface water
- Treatment
- Lime softened.
- Worth knowing
- Wilmington does not report a finished hardness figure, so we test on site. Rural properties outside the city run on private wells, which are a different treatment problem entirely.
- PFAS
- Federal sampling found PFOS at 8.79 ppt, above the federal limit that takes effect in 2029, which EPA has proposed letting systems request until 2031 to meet. Reverse osmosis is the treatment that removes it.
Source: City of Wilmington, 2025 reporting year. Hardness bands follow the Water Quality Association scale: soft under 3.5 grains, moderate 3.5 to 7, hard 7 to 10.5, very hard above 10.5.
How hard is the water in Wilmington, OH?
City of Wilmington Water Department does not publish a finished-water hardness figure for Wilmington, OH. The supply is surface water. Lime softened.
Who supplies the water in Wilmington, OH?
Wilmington is served by City of Wilmington Water Department. The water comes from surface water. Lime softened.
Do I need a water softener in Wilmington, OH?
Because City of Wilmington Water Department does not publish a hardness figure for Wilmington, the only way to answer this properly is to test the water at the property.
What parts of Wilmington do you cover?
All of Wilmington, including Downtown Wilmington and Airborne Road area. Flat-rate pricing across the whole service area, with no travel charge between neighborhoods.
Is anything unusual about Wilmington water?
Wilmington does not report a finished hardness figure, so we test on site. Rural properties outside the city run on private wells, which are a different treatment problem entirely.
Is there PFAS in Wilmington, OH water?
Federal sampling found PFOS at 8.79 ppt, above the federal limit that takes effect in 2029, which EPA has proposed letting systems request until 2031 to meet. Reverse osmosis at the kitchen tap is the treatment that removes PFAS.
What we install in Wilmington

Complete Home — City
Softens every drop. Filters every tap. Polishes your drinking water

Complete Home — Well
The well-water version, sized for iron, sulfur, and high hardness

Reverse Osmosis
Drinking water only. Installed under the kitchen sink

Sediment Filter
Protects every system downstream from grit and rust
An Ohio business — local install crews
- Same flat price before any recommendation
- Licensed, insured, locally-trained install team
- Lifetime warranty on every whole-home tank
- Transparent flat-rate pricing — no surprise add-ons
- 24-hour response on every quote request
Get your install quote in Wilmington
We'll reach out within 24 hours.
Ready for clean water in Wilmington?
Same flat price. Free installation. Lifetime warranty.