Water Health Check Report
Philadelphia, PA
Philadelphia Water Department · Surface water source
Poor — with 9 concerns
Philadelphia Water Department has 2 contaminants above EPA legal limits and 7 above EWG health guidelines.
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Lead—source matters
Lead in tap water comes from household plumbing, not the source water or treatment plant. Philadelphia water leaves the treatment plant lead-free. Risk depends on your building's internal plumbing—highest in homes built before 1986, when lead solder was common. A NSF/ANSI 53 certified pitcher or under-sink filter removes lead at point of use.
Contaminants tested
29 total · 7 above EWG guideline| Contaminant | Level | Status |
|---|---|---|
PFOA (perfluorooctanoic acid) CAS 335-67-1 | 6.9 ppt | Above EPA limit |
PFOS (perfluorooctane sulfonate) CAS 1763-23-1 | 5.0 ppt | Above EPA limit |
PFNA (perfluorononanoic acid) CAS 375-95-1 | 4.5 ppt | Above guideline |
PFBA (perfluorobutanoic acid) CAS 375-22-4 | 6.9 ppt | Above guideline |
PFHpA (perfluoroheptanoic acid) CAS 375-85-9 | 3.1 ppt | Above guideline |
PFPeA (perfluoropentanoic acid) CAS 2706-90-3 | 6.5 ppt | Above guideline |
PFHxA (perfluorohexanoic acid) CAS 307-24-4 | 5.9 ppt | Above guideline |
PFBS (perfluorobutane sulfonic acid) CAS 375-73-5 | 6.2 ppt | Above guideline |
Lead CAS 7439-92-1 | 2.0 ppb | Above guideline |
Radium 226+228 CAS Various | < 0.01 pCi/L | Within limits |
Copper CAS 7440-50-8 | ND ppm | Within limits |
PFHpS (perfluoroheptane sulfonic acid) CAS 375-92-8 | ND | Not detected |
ADONA (4,8-dioxa-3H-perfluorononanoic acid) CAS 919005-14-4 | ND | Not detected |
8:2 FTS (8:2 fluorotelomer sulfonic acid) CAS 39108-34-4 | ND | Not detected |
ND | Not detected | |
ND | Not detected | |
PFTrDA (perfluorotridecanoic acid) CAS 72629-94-8 | ND | Not detected |
PFTA (perfluorotetradecanoic acid) CAS 376-06-7 | ND | Not detected |
Lithium CAS 7439-93-2 | ND | Not detected |
4:2 FTS (4:2 fluorotelomer sulfonic acid) CAS 757124-72-4 | ND | Not detected |
PFHxS (perfluorohexane sulfonic acid) CAS 355-46-4 | ND | Not detected |
ND | Not detected | |
PFUnA (perfluoroundecanoic acid) CAS 2058-94-8 | ND | Not detected |
PFDA (perfluorodecanoic acid) CAS 335-76-2 | ND | Not detected |
PFDoA (perfluorododecanoic acid) CAS 307-55-1 | ND | Not detected |
ND | Not detected | |
HFPO-DA / GenX (hexafluoropropylene oxide dimer acid) CAS 13252-13-6 | ND | Not detected |
6:2 FTS (6:2 fluorotelomer sulfonic acid) CAS 27619-97-2 | ND | Not detected |
PFPeS (perfluoropentane sulfonic acid) CAS 2706-91-4 | ND | Not detected |
Filter recommendation
9 contaminants above guidelines. Here's what removes them.
A guided 4-question flow matches you to the right filter for your setup, budget, and household.
Want to go further than filtration?
Your report shows 9 contaminants above health guidelines. A specialist at Drawn can give you an expert read on your specific profile — what to prioritise, which filters actually address it, and what optimisation looks like for your household.
What a consultation covers
- Your contaminant profile explained in plain English
- Filter recommendations matched to what's actually in your water
- Optimisation options for households ready for that conversation
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Data sources
Status flags compare detected levels against both EPA legal limits and EWG health-based guidelines—which are stricter and science-derived, independent of political feasibility.