Water treatment in Shillington and Mohnton, PA
Shillington and Mohnton are just across Cumru Township from our home in Sinking Spring. Water here comes from Blue Marsh Lake through the Western Berks Water Authority and is disinfected with chloramine, which takes the right filter to remove. We test your water for free, then filter or soften it.
Not sure what you need? Get your free water report in seconds →
Your water, by the numbers
Western Berks Water Authority results from the 2025 Annual Drinking Water Quality Report published for its customers.
| 2025 result | |
|---|---|
| Supplier | Shillington Municipal Authority (buys treated water); Berks County lists Shillington, Mohnton and Cumru Twp in the Western Berks Water Authority area |
| Source | Blue Marsh Lake and Tulpehocken Creek intakes |
| Disinfectant | Chloramine, up to 3.14 ppm |
| Nitrate | 2.25 to 3.83 ppm (limit 10) |
| PFAS | PFOA 3.69 ppt (state limit 14); PFOS 1.82 ppt (state limit 18) |
| Trihalomethanes | 42.2 ppb (limit 80) |
| Haloacetic acids | 46.5 ppb (limit 60) |
| Hardness | Not listed. We test it free. |
| Violations | None reported for Western Berks Water Authority in 2025 |
Why chloramine matters for filters
Chloramine is chlorine combined with ammonia. It stays in the water longer, which helps the utility, but it also gets through ordinary carbon filters and pitcher filters that handle chlorine fine.
Catalytic carbon. A whole-home tank of catalytic carbon, sized for enough contact time, reduces chloramine at every tap.
A dedicated tank works best. Our City Premium package uses a separate carbon tank for this reason. Packages from $2,895 →
Drinking water. Tankless reverse osmosis at the kitchen sink, $1,195 installed.
On a well in Cumru or Brecknock?
Pennsylvania doesn't require private wells to be tested. In Penn State's Berks County lab summary, 40.2% of samples failed for coliform bacteria and 76.8% failed the corrosivity index.
Test for bacteria every year. Well water testing →
See what treatment costs. Well water prices →
Water treatment services in Shillington and Mohnton
Water Softeners
Sized to your hardness to stop scale and spots.
Whole-Home Filtration
Chlorine or chloramine taste and smell reduced at every tap.
Reverse Osmosis
Purified drinking water at your kitchen sink.
Well Water Treatment
Iron, sulfur, acidic water and bacteria.
Free Water Testing
We test at your sink and explain the results.
Water Softener Repair
Salt bridges, settings, resin and valve problems.
How it works
Request your instant free quote
Fill out the free quote form or call (610) 400-3132. Tell us your address and whether you're on city water or a well.
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 confirms your setup
Before we install, we test your actual water for free 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.
Shillington and Mohnton water: common questions
Who supplies water in Shillington?
The Shillington Municipal Authority, which buys treated water rather than pumping its own; EPA lists about 13,300 people served. Berks County's water system table lists Shillington, Mohnton and Cumru Township in the Western Berks Water Authority service area. Your water bill names your supplier.
Where does the water come from?
Western Berks Water Authority treats water from Blue Marsh Lake and the Tulpehocken Creek, according to the 2025 water quality report published for its customers.
Is it chlorine or chloramine?
Chloramine, a mix of chlorine and ammonia that lasts longer in the pipes. It's harder to remove than chlorine, so a filter for chloramine needs catalytic carbon and enough contact time.
Is Shillington water hard?
The 2025 report doesn't list hardness, so we don't publish a number. Our free in-home test measures it in a few minutes.
What does the 2025 report show?
Western Berks Water Authority reported no violations in 2025. Nitrate was up to 3.83 ppm (limit 10), PFOA 3.69 parts per trillion (state limit 14), and trihalomethanes 42.2 ppb (limit 80).
Do you serve Shillington and Mohnton?
Yes. Both are about 10 minutes from our base in Sinking Spring. Call (610) 400-3132 or book a free water test.
Written by Sam Beiler, co-founder of Willow Springs Water Company, Sinking Spring, PA. Last updated October 2026.
- West Reading Borough, 2025 Annual Drinking Water Quality Report (Western Berks Water Authority water)
- Western Berks Water Authority, 2025 Annual Drinking Water Quality Report (PWSID 3060066)
- U.S. EPA ECHO, community water systems in Berks County
- Berks County, Water System Capacity and Age table
- Penn State Agricultural Analytical Services Lab, Berks County drinking water test summary