Water Quality & Forever Chemicals
Googling "is Philadelphia tap water safe" tonight? Settle in, there's no bombshell here. This page is a plain-English summary of what public federal water records show for Philadelphia, Pennsylvania, pulled together so you can avoid the dataset rabbit hole. What genuinely changes from one home to the next is the specific utility serving your address and the source behind it, which is the piece really worth nailing down.
0
PFAS detections in nearby water systems
EPA UCMR 5 (2021–2024) results matching the city name
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Industrial PFAS facilities in city
EPA TRI 2024 reporting
6
DoD PFAS installations statewide
In Pennsylvania
Much of the Philadelphia area tends to draw its drinking water from the Delaware and Schuylkill Rivers as treated surface sources, a long-standing arrangement for the city, while some surrounding suburbs lean more on groundwater. That broad regional picture differs meaningfully from well-fed communities elsewhere. Your own tap depends on the system serving your street, so read this as context, not a description of your exact supply.
In greater Philadelphia, two houses a mile apart can be served by different public water systems, so the regional summary above isn't necessarily your tap. To find out, identify the system listed for your address and read its annual Consumer Confidence Report, which every utility publishes for free. A quick call to the utility named in the live list confirms it. That's the sort of free homework worth reviewing when evaluating an address.
"Philadelphia water hardness" gets searched constantly, and it's almost always a dishes-and-dry-skin question, not a health one. River-fed and groundwater blends across the region vary, so we won't slap a number on your tap. The simplest fix: an inexpensive test strip, or a look at your utility's annual report, which frequently lists hardness. Consider it the key to decoding why your dishwasher and your skin disagree about the water.
EPA required public water systems serving 3,300+ people to test 29 PFAS compounds between 2021 and 2024.
City-level numbers describe the broad pattern around Philadelphia; two homes a mile apart can sit on different water systems with very different profiles. The address report fills that gap — it identifies the public water system serving a specific property, lists any PFAS detections on that exact system, and maps the nearby industrial and Superfund sources.
Guide
How to Check Drinking Water Quality Before Buying a Home
The 5-minute version of what an environmental consultant would look at.
Guide
PFAS “Forever Chemicals” — A Homebuyer's Guide
What PFAS are, why they matter, and what to do before closing.
How-to
How to Check for PFAS Near Your Address
A walkthrough of the federal datasets we pull from.
Checklist
Environmental Risks to Check Before Buying a House
A practical pre-offer checklist for buyers and agents.
A flat yes-or-no verdict is something no careful page should sell, so we don't. We summarize what federal records like UCMR 5 show for Philadelphia. Bear in mind a detection isn't an exceedance, and UCMR 5 mainly covers larger systems, so a quiet result means "nothing on record here," not certified clean. The address-level answer rests with the system actually serving you.
Begin with the system or systems listed on this page, then look up that utility's published contact information and its annual Consumer Confidence Report. Because nearby addresses can be on different public water systems, the dependable move is matching your exact address to its provider instead of assuming one city-wide utility serves your block.
Broadly, much of the Philadelphia area tends to rely on the Delaware and Schuylkill Rivers as treated surface-water sources, with some surrounding suburbs leaning on groundwater. That's the well-established regional picture; your specific source depends on the system serving your address and is spelled out in that utility's annual report.
We don't publish a hardness number, since no reliable address-level hardness dataset exists to cite. Around Philadelphia the mix of river-fed surface water and groundwater varies, so generalizing further would be guessing. To learn yours, grab a cheap test strip or check whether your utility's annual report lists hardness. It's a household nuisance topic, not a safety issue.
Enter an address — we'll identify the serving water utility, pull PFAS detections, FEMA flood zone, and nearby Superfund sites, then give you a plain-English A–F grade. $19.99 single, $29.99 two-address bundle.
One-time report. PFAS, water violations, Superfund sites, flood zone, air quality, and a plain-English A–F grade for the address.
More Pennsylvania data: Superfund sites · PFAS in Pennsylvania
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