Tap Water Quality Report
Tap water quality in BRYN MAWR, Pennsylvania
Tap water in BRYN MAWR, Pennsylvania receives a grade of F (52/100) from TapWaterSafety.org. It's served by 2 public water systems, primarily AQUA PA BENSALEM. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Arsenic significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in BRYN MAWR's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utilities serving BRYN MAWR.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS), Perfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 1.7 ppt, 1700x above the EWG health guideline of 0.001 ppt.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 42.9 ppb, 716x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 25.5 ppb, 255x above the EWG health guideline of 0.1 ppb.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 0.866 ppb, 216x above the EWG health guideline of 0.004 ppb.
Water systems serving BRYN MAWR
BRYN MAWR is served by 2 public water systems. Click any utility to see its complete grade card and treatment plant contact info.
AQUA PA BENSALEM
- PFAS contamination
- Perfluorohexane sulfonate (PFHXS) significantly above health guideline
- Haloacetic acids (HAA9) significantly above health guideline
AQUA PA MAIN SYSTEM
- PFAS contamination
- Perfluorohexane sulfonate (PFHXS) significantly above health guideline
- Haloacetic acids (HAA9) significantly above health guideline
Recommended filters for BRYN MAWR
Filters matched to the specific contaminants in BRYN MAWR's water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in BRYN MAWR's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Perfluorohexane sulfonate (PFHXS) PFAS |
1.7 ppt | 0.001 | 10.0 | — | — | — | — | 1700× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
42.9 ppb | 0.06 | — | — | — | — | — | 716× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
25.5 ppb | 0.1 | 60.0 | 60 | — | — | — | 255× over |
| Arsenic Heavy metal |
0.866 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 216× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
30.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 206× over |
| Bromodichloromethane Disinfection byproduct |
9.57 ppb | 0.06 | — | — | — | — | — | 160× over |
| Trichloroacetic acid Disinfection byproduct |
13.5 ppb | 0.1 | — | — | — | — | — | 135× over |
| Perfluorononanoic acid (PFNA) PFAS |
0.545 ppt | 0.006 | 10.0 | — | — | — | — | 91× over |
| Dichloroacetic acid Disinfection byproduct |
11.3 ppb | 0.2 | — | — | — | — | — | 57× over |
| Chloroform Disinfection byproduct |
20.9 ppb | 0.4 | — | — | — | — | — | 52× over |
| Dibromochloromethane Disinfection byproduct |
3.19 ppb | 0.1 | — | — | — | — | — | 32× over |
| Perfluorooctanoic acid (PFOA) PFAS |
2.9 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 32× over |
| 1,2,3-Trichloropropane Other |
0.0168 ppb | 0.0007 | — | — | — | — | — | 24× over |
| Nitrate Inorganic |
3.41 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 24× over |
| Dibromoacetic acid Disinfection byproduct |
0.683 ppb | 0.03 | — | — | — | — | — | 23× over |
| Chromium (hexavalent) Heavy metal |
0.279 ppb | 0.02 | — | — | — | — | — | 14× over |
| Tetrachloroethylene (perchloroethylene) Volatile organic compound |
0.507 ppb | 0.06 | 5.0 | — | — | — | — | 8.5× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
2.38 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 7.9× over |
| Radium, combined (-226 and -228) Radiological |
0.14 pCi/L | 0.05 | 5.0 | — | — | — | — | 2.7× over |
| 1,4-Dioxane Semi-volatile organic compound |
0.216 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Chlorate Disinfection byproduct |
119.5 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Bromoform Disinfection byproduct |
0.211 ppb | 0.5 | — | — | — | — | — | Below guideline |
| Trichloroethylene Volatile organic compound |
0.0874 ppb | 0.4 | 5.0 | 10 | 20 | 1.7 | — | Below guideline |
| Uranium Radiological |
0.05 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | Below guideline |
| Barium Heavy metal |
74.9 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Antimony Heavy metal |
0.0893 ppb | 1.0 | 6.0 | 10 | 20 | 1 | — | Below guideline |
| Molybdenum Other |
2.08 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.771 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
2.05 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Cyanide (free) Inorganic |
1.35 ppb | 150.0 | — | 50 | 70 | 150 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.389 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
5.22 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
4.38 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.00952 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
2.52 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
2.62 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
1.15 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.178 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.64 ppb | — | 100.0 | — | — | — | — | Below guideline |
| cis-1,2-Dichloroethylene Volatile organic compound |
0.0211 ppb | — | 70.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.0523 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from AQUA PA BENSALEM.