Aqua Pennsylvania Uwchlan water quality
Aqua's Uwchlan system blends ten local wells with water from its Main System and disinfects with chloramine. Its 2025 report shows PFOA up to 10 ppt and PFOS up to 6.2 ppt, both above the federal 4 ppt level. Here is what's in the 2025 report, in plain English, and what it means for your home.
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Aqua PA Uwchlan water, by the numbers
From the Aqua Pennsylvania, 2025 Water Quality Report, Uwchlan (PA1150035), with EPA records where noted.
| 2025 result | |
|---|---|
| Source | Ten local wells plus water from Aqua's Main System |
| People served | About 35,500 (EPA) |
| Areas served | Uwchlan Township, Exton and Lionville |
| Disinfectant | Chloramine |
| Hardness | Not listed in the report. We test it free. |
| PFAS | PFOA up to 10 ppt (state limit 14); PFOS up to 6.2 ppt (state limit 18) |
| Nitrate | Up to 4.7 ppm, average 2.98 (limit 10) |
| Lead | 2.21 ppb at the 90th percentile; 0 of 33 homes over the action level |
| Trihalomethanes | Up to 24 ppb (limit 80) |
What these numbers mean for your home
Chloramine, not chlorine. Aqua PA Uwchlan uses chloramine, which lasts longer in the pipes and is harder to filter than chlorine. It takes catalytic carbon and enough contact time, so tell us you're on Aqua PA Uwchlan and we'll size the filter for it. Whole-home filtration →
PFAS above the federal level. The highest PFAS result here, 10 ppt, is above EPA's federal limit of 4 ppt for PFOA and PFOS. Water systems don't have to meet that limit yet (EPA has proposed 2031). A reverse osmosis system at the kitchen sink reduces PFAS in drinking water. Reverse osmosis →
Hardness isn't listed. Aqua PA Uwchlan's report doesn't publish a hardness number, so we don't guess. Our free in-home test measures it in a few minutes. Free water testing →
Water treatment for Aqua PA Uwchlan customers
How it works
Request your instant free quote
Fill out the free quote form or call (610) 400-3132. Tell us your address and that you're on Aqua PA Uwchlan water.
We quote you on the spot
You get a clear price for your system right then, starting from a base package at a set price.
A free water test tunes your system
Before we install, we test your actual water for free and tune the system to it, so you only pay for the treatment your water needs.
We install your system
We install it cleanly, show you how it works, and let you know when filters and service are due.
Aqua PA Uwchlan water: common questions
Is Aqua Pennsylvania Uwchlan water safe to drink?
Aqua Pennsylvania Uwchlan's 2025 report shows its water met state and federal drinking water standards except where noted in the table above. Meeting the standards doesn't mean nothing is in the water, so many families add filtration for taste, PFAS or hardness.
Does Aqua PA Uwchlan use chlorine or chloramine?
Chloramine. Chloramine needs catalytic carbon to filter well.
Is Aqua PA Uwchlan water hard?
The report doesn't list hardness. We test it free in your home.
What about PFAS in Aqua PA Uwchlan water?
PFOA up to 10 ppt (state limit 14); PFOS up to 6.2 ppt (state limit 18). Pennsylvania's limits are 14 ppt for PFOA and 18 ppt for PFOS; EPA's federal limit is 4 ppt for each.
Do you install water treatment for Aqua PA Uwchlan customers?
Yes. Willow Springs Water Company serves Chester County homes from Sinking Spring. Request an instant free quote or call (610) 400-3132.
Written by Sam Beiler, co-founder of Willow Springs Water Company, Sinking Spring, PA. Last updated November 2026. Willow Springs is not affiliated with Aqua Pennsylvania Uwchlan.