Water treatment & radon mitigation in Downingtown, Pennsylvania
Downingtown, Exton and the Chester Valley corridor sit right on the limestone strip.
Otter Home is a family-owned water and air company serving Downingtown and the rest of Chester County. We test first, then recommend only the equipment your test results actually call for — softeners, iron and sulfur removal, acid neutralizers, reverse osmosis drinking water, whole-home air purification and radon systems.
Water chemistry in Downingtown
The Chester Valley limestone runs straight through here, so hardness climbs well above the county average — 15 gpg and up is common. Just north or south of the valley, homes flip to soft, acidic crystalline-rock water. Two houses a mile apart can need completely different systems, which is why we test before we quote.
City water vs. private wells
Public water along the Route 30 corridor; wells in Uwchlan, East Caln and the townships north toward Chester Springs.
Common well water problems
Hardness in the valley, low pH and manganese on the ridges, and historical solvent contamination in a few documented pockets — worth a lab test if your neighbors have talked about it.
Municipal chlorination
Chlorinated public supply; carbon removes the taste and odor.
Radon in this area
Elevated radon is common throughout the valley. Test first, then decide.
Other towns we serve
Free water test in Downingtown.
No obligation, no pressure. We test, we explain what the numbers mean, and you decide.