Aqua Pennsylvania West Chester water quality
Aqua's West Chester system treats water from Brandywine Creek and two wells and disinfects it with chlorine. Its 2025 report shows trihalomethanes averaging 52 ppb, with single samples as high as 91 ppb. Here is what's in the 2025 report, in plain English, and what it means for your home.
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Aqua PA West Chester water, by the numbers
From the Aqua Pennsylvania, 2025 Water Quality Report, West Chester (PA1150098), with EPA records where noted.
| 2025 result | |
|---|---|
| Source | Brandywine Creek and two wells |
| People served | About 48,600 (EPA) |
| Areas served | West Chester and surrounding townships (ZIP 19383 and parts of 19380 and 19382) |
| Disinfectant | Chlorine |
| Hardness | Not listed in the report. We test it free. |
| PFAS | PFOA up to 5.9 ppt (state limit 14); PFOS not detected |
| Nitrate | Up to 4.2 ppm, average 4.05 (limit 10) |
| Lead | 0 ppb at the 90th percentile; 0 of 32 homes over the action level |
| Trihalomethanes | 52 ppb running average; single samples 23–91 ppb (limit 80, based on the running average) |
What these numbers mean for your home
Chlorine taste and smell. Aqua PA West Chester disinfects with chlorine. A whole-home carbon filter removes the taste and smell at every tap, including the shower. Whole-home filtration →
PFAS above the federal level. The highest PFAS result here, 5.9 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 West Chester'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 West Chester 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 West Chester 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 West Chester water: common questions
Is Aqua Pennsylvania West Chester water safe to drink?
Aqua Pennsylvania West Chester'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 West Chester use chlorine or chloramine?
Chlorine. A standard whole-home carbon filter removes chlorine taste and smell.
Is Aqua PA West Chester water hard?
The report doesn't list hardness. We test it free in your home.
What about PFAS in Aqua PA West Chester water?
PFOA up to 5.9 ppt (state limit 14); PFOS not detected. 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 West Chester 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 West Chester.
- Aqua Pennsylvania, 2025 Water Quality Report, West Chester (PA1150098)
- U.S. EPA ECHO, community water systems in Chester County
- U.S. EPA, Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) data
- PA DEP, PFOA and PFOS maximum contaminant levels
- U.S. EPA, PFAS National Primary Drinking Water Regulation