NORTH WALES WATER AUTHORITY
PA · PWS ID PA1460048 · Community water system
111
contaminants tested
32
detected
72,496
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0064 ug/L | 12/16 | 2025 |
| PFOA | 0.0130 ug/L | 12/16 | 2025 |
| PFOS | 0.0111 ug/L | 11/16 | 2025 |
| PFHxA | 0.0081 ug/L | 10/16 | 2025 |
| PFPeA | 0.0093 ug/L | 10/16 | 2025 |
| PFHpA | 0.0058 ug/L | 7/16 | 2025 |
| PFBA | 0.0068 ug/L | 3/16 | 2025 |
| PFHxS | 0.0037 ug/L | 2/16 | 2025 |
| PFNA | 0.0056 ug/L | 1/16 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 4360 UG/L | 516/558 | SYR4 | 2012–2019 |
| Chloroform | 55.4 UG/L | 379/379 | SYR4 | 2012–2019 |
| TTHM | 76.4 UG/L | 303/303 | SYR4 | 2012–2019 |
| Bromodichloromethane | 15.3 UG/L | 295/295 | SYR4 | 2012–2019 |
| Dibromochloromethane | 9.05 UG/L | 294/294 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 40.5 UG/L | 272/277 | SYR4 | 2012–2019 |
| COPPER, FREE | 1200 UG/L | 152/152 | SYR4 | 2013–2019 |
| Bromate | 3.8 UG/L | 92/92 | SYR4 | 2012–2019 |
| Bromoform | 2.8 UG/L | 70/271 | SYR4 | 2012–2019 |
| Lead | 10.6 UG/L | 42/152 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 28.1 UG/L | 41/41 | SYR4 | 2018–2019 |
| Trichloroacetic Acid | 12.5 UG/L | 41/41 | SYR4 | 2018–2019 |
| Barium | 508 UG/L | 33/35 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0134 mg/L | 12/12 | LCR | 2025 |
| Combined Uranium | 14.0805 UG/L | 9/13 | SYR4 | 2014–2017 |
| Arsenic | 5 UG/L | 8/35 | SYR4 | 2012–2019 |
| Chromium | 2 UG/L | 8/35 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 1.45 UG/L | 4/41 | SYR4 | 2018–2019 |
| Atrazine | 0.3000 UG/L | 2/56 | SYR4 | 2012–2019 |
| CYANIDE | 10 UG/L | 2/35 | SYR4 | 2012–2019 |
| lithium | 9.65 ug/L | 2/16 | UCMR-5 | 2025 |
| Antimony, Total | 0.7000 UG/L | 1/35 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) phthalate | 1.8 UG/L | 1/53 | 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-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAsbestosBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneFluorideGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene