West Chester
PA

Is West Chester, PA Tap Water Safe to Drink?

West Chester tap water meets federal Safe Drinking Water Act standards but 4 of 4 ZIP codes show detections above EPA health guidelines, primarily for PFPeA. A certified filter is recommended for households that want an additional layer of protection.

5Water systems
4ZIP codes
100%ZIPs above EPA guideline
Metro areaPhiladelphia-Camden-Wilmington, PA-NJ-DE-MD
Latest data2024-12-11

Where Does West Chester Get Its Water?

Water in West Chester, PA is provided by 5 public water systems: AQUA PA WEST CHESTER, CHESTER WATER AUTHORITY, AQUA PA MAIN SYSTEM, AQUA PA SPRING RUN and AQUA PA UWCHLAN.

How Is West Chester Tap Water Treated?

Treated water is disinfected using free chlorine and calcium hypochlorite and chloramines. Treatment includes air stripping, conventional treatment (coagulation, flocculation, and filtration), granular activated carbon filtration, groundwater disinfection, ion exchange and post-ozone biofiltration.

What's in West Chester Tap Water?

The following contaminants were detected most frequently in West Chester public water systems. 4 of 4 ZIP codes showed detections above EPA health guidelines.

ContaminantPeak detectedEPA guidelineZIPs detectedStatus
PFPeA 0.0136 µg/L 0.003 µg/L 4 ZIPs Above guideline
lithium 9 µg/L — 0 ZIPs Within guideline
PFTrDA 0.007 µg/L — 0 ZIPs Within guideline
11Cl-PF3OUdS 0.005 µg/L — 0 ZIPs Within guideline
8:2 FTS 0.005 µg/L — 0 ZIPs Within guideline

Health Risk Profile for West Chester

Based on EPA monitoring data, 4 of 4 ZIP codes in West Chester have recorded detections above EPA health guidelines. Sensitive populations such as infants, pregnant individuals, and those with weakened immune systems may benefit from an additional layer of protection such as a certified point-of-use filter.

Best Broad-Spectrum Filters for This Water Profile

This city profile includes PFAS detections, chlorine disinfection, and other dissolved contaminants. Reverse osmosis (RO) systems certified under NSF/ANSI 58 provide broad reduction coverage; for PFAS specifically, confirm NSF/ANSI P473 or equivalent PFAS reduction certification.

Waterdrop G3P600 Reverse Osmosis System
Under-sink RO system

8-stage tankless RO system certified to NSF/ANSI 58, reduces 1,000+ contaminants including PFAS, lead, arsenic, fluoride, and nitrates.

See recommendations matched to your exact address: choose your ZIP code below.

Frequently Asked Questions about West Chester Tap Water

Is West Chester tap water safe to drink?

West Chester tap water meets Safe Drinking Water Act requirements but 4 of 4 ZIP codes show contaminant levels above EPA health-based guidelines. A certified point-of-use filter adds an extra layer of protection.

What contaminants are in West Chester tap water?

The most commonly detected contaminants in West Chester water systems include: PFPeA, lithium, PFTrDA. See the ZIP-level reports for exact measurements and EPA guideline comparisons.

Where does West Chester get its drinking water?

West Chester receives water from 5 public water systems, including AQUA PA WEST CHESTER.

Do I need a water filter in West Chester?

If your ZIP code is among those with detections above EPA health guidelines, choose a filter certified for the specific contaminants shown in your ZIP report. Reverse osmosis is generally the broadest option for PFAS, lithium, and many other dissolved contaminants.

How often is West Chester tap water tested?

Public water systems in West Chester are required by the EPA to test for regulated contaminants on schedules ranging from daily (for microbials and disinfectants) to annual or triennial (for many chemical contaminants). Results are published in annual Consumer Confidence Reports (CCRs). The data on this page reflects the most recent available EPA monitoring results, with the latest sample date of 2024-12-11.

Tap water reports by ZIP in West Chester

Water utilities serving West Chester, PA

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Also covers / overlaps with