PHILADELPHIA WATER DEPARTMENT
PA · PWS ID PA1510001 · Community water system
109
contaminants tested
30
detected
1,600,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxA | 0.0091 ug/L | 10/12 | 2024 |
| PFPeA | 0.0099 ug/L | 9/12 | 2024 |
| PFOA | 0.0081 ug/L | 8/12 | 2024 |
| PFBS | 0.0100 ug/L | 7/12 | 2024 |
| PFOS | 0.0060 ug/L | 6/12 | 2024 |
| PFBA | 0.0076 ug/L | 4/12 | 2024 |
| PFHpA | 0.0033 ug/L | 4/12 | 2024 |
| PFNA | 0.0045 ug/L | 2/12 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 145 UG/L | 1609/1609 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 136 UG/L | 1556/1557 | SYR4 | 2012–2019 |
| Nitrate | 5040 UG/L | 588/588 | SYR4 | 2012–2019 |
| Bromodichloromethane | 25.8 UG/L | 536/536 | SYR4 | 2013–2019 |
| Chloroform | 99.1 UG/L | 535/535 | SYR4 | 2013–2019 |
| Dibromochloromethane | 16.1 UG/L | 480/534 | SYR4 | 2013–2019 |
| COPPER, FREE | 2712 UG/L | 343/343 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 28 UG/L | 263/263 | SYR4 | 2018–2019 |
| Trichloroacetic Acid | 40.6 UG/L | 263/263 | SYR4 | 2018–2019 |
| Monochloroacetic acid | 10.1 UG/L | 172/263 | SYR4 | 2018–2019 |
| Lead | 576 UG/L | 165/322 | SYR4 | 2014–2019 |
| Bromoform | 2.7 UG/L | 92/532 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 2.5 UG/L | 88/263 | SYR4 | 2018–2019 |
| Monobromoacetic acid | 1.03 UG/L | 49/263 | SYR4 | 2018–2019 |
| Barium | 62 UG/L | 30/30 | SYR4 | 2012–2019 |
| Fluoride | 784 UG/L | 24/24 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0220 mg/L | 12/12 | LCR | 2025 |
| Chromium | 3 UG/L | 9/30 | SYR4 | 2012–2019 |
| Atrazine | 0.6000 UG/L | 6/30 | SYR4 | 2012–2019 |
| Antimony, Total | 0.5000 UG/L | 5/30 | SYR4 | 2012–2019 |
| 2,4-D | 0.7000 UG/L | 2/31 | SYR4 | 2012–2019 |
| CYANIDE | 36 UG/L | 2/24 | SYR4 | 2012–2019 |
79 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAArsenicBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneCombined UraniumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpSPFHxSPFMBAPFMPAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene