Is King of Prussia, PA Tap Water Safe to Drink?
King of Prussia tap water meets federal Safe Drinking Water Act standards but 1 of 1 ZIP code show detections above EPA health guidelines, primarily for lithium. A certified filter is recommended for households that want an additional layer of protection.
Where Does King of Prussia Get Its Water?
Water in King of Prussia, PA is provided by 4 public water systems: NORTH PENN WATER AUTHORITY, PA AMERICAN NORRISTOWN, AQUA PA MAIN SYSTEM and RADISSON VALLEY FORGE HOTEL.
How Is King of Prussia Tap Water Treated?
Treated water is disinfected using free chlorine and calcium hypochlorite and chloramines and ozone and on-site generated disinfectant. Treatment includes air stripping, conventional treatment (coagulation, flocculation, and filtration), granular activated carbon filtration, groundwater disinfection, ion exchange, membrane filtration and post-ozone biofiltration.
What's in King of Prussia Tap Water?
The following contaminants were detected most frequently in King of Prussia public water systems. 1 of 1 ZIP codes showed detections above EPA health guidelines.
| Contaminant | Peak detected | EPA guideline | ZIPs detected | Status |
|---|---|---|---|---|
| lithium | 23.6 µg/L | 10 µg/L | 1 ZIP | Above guideline |
| PFTrDA | 0.007 µg/L | — | 0 ZIPs | Within guideline |
| 11Cl-PF3OUdS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| PFBA | 0.005 µg/L | — | 0 ZIPs | Within guideline |
| 6:2 FTS | 0.005 µg/L | — | 0 ZIPs | Within guideline |
Health Risk Profile for King of Prussia
Based on EPA monitoring data, 1 of 1 ZIP codes in King of Prussia 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.
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 King of Prussia Tap Water
Is King of Prussia tap water safe to drink?
King of Prussia tap water meets Safe Drinking Water Act requirements but 1 of 1 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 King of Prussia tap water?
The most commonly detected contaminants in King of Prussia water systems include: lithium, PFTrDA, 11Cl-PF3OUdS. See the ZIP-level reports for exact measurements and EPA guideline comparisons.
Where does King of Prussia get its drinking water?
King of Prussia receives water from 4 public water systems, including NORTH PENN WATER AUTHORITY.
Do I need a water filter in King of Prussia?
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 King of Prussia tap water tested?
Public water systems in King of Prussia 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 2025-01-14.
Tap water reports by ZIP in King of Prussia
- 19406 - King of Prussia tap water report Higher concern
Water utilities serving King of Prussia, 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.
- AQUA PA MAIN SYSTEMAction advised
Also covers / overlaps with
- Swedeland, PA · CDP
- Upper Merion, PA · Township