What was found in ZIP 18977
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 3650 µg/L 37% of the EPA limit 10000 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Barium | 500 µg/L 25% of the EPA limit 2000 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Copper | 127.5 µg/L 9.8% of the EPA limit 1300 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| TTHM | 85 µg/L 106% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Chloroform | 74.48 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 64.08 µg/L 107% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 40.95 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 24.85 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Lead | 12.6 µg/L 84% of the EPA limit 15 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 11.59 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 4.75534 µg/L 16% of the EPA limit 30 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2017 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.98 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.1 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Bromoform | 0.7850 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| Hexachlorocyclopentadiene | 0.1000 µg/L 0.2% of the EPA limit 50 µg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2019 | 1/1 | SYR4 |
| PFOA | 0.0097 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2024 | 1/1 | UCMR-5 |
| PFOS | 0.0061 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2024 | 1/1 | UCMR-5 |
| Pfba | 0.0054 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0051 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2024 | 1/1 | UCMR-5 |
| PFBS | 0.0048 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0048 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2024 | 1/1 | UCMR-5 |
| Pfhpa | 0.0030 µg/L No EPA limit set Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: PA AMERICAN WATER CO YARDLEY · 33,171 people · 2025 | 1/1 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 18977
| Supplier | State | Population served |
|---|---|---|
| PA AMERICAN WATER CO YARDLEY | PA | 33,171 |
Frequently asked questions about ZIP 18977 tap water
Is the tap water in ZIP 18977 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 18977. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 18977?
1 public water supplier report EPA drinking-water monitoring for ZIP 18977. Each is listed above with its population served.
What contaminants are in ZIP 18977's water?
EPA monitoring detected Nitrate, Barium, Copper, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.