What was found in ZIP 18101
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 4780 µg/L 48% of the EPA limit 10000 µg/L | 1/1 | SYR4 |
| Fluoride | 600 µg/L 15% of the EPA limit 4000 µg/L | 1/1 | SYR4 |
| Copper | 560 µg/L 43% of the EPA limit 1300 µg/L | 1/1 | SYR4 |
| TTHM | 105 µg/L 131% of the EPA limit, in the worst sample — 80 µg/L | 1/1 | SYR4 |
| Chloroform | 46.3 µg/L No EPA limit set | 1/1 | SYR4 |
| Barium | 38 µg/L 1.9% of the EPA limit 2000 µg/L | 1/1 | SYR4 |
| Lead | 38 µg/L 253% of the EPA limit, in the worst sample — 15 µg/L | 1/1 | SYR4 |
| Bromodichloromethane | 31.2 µg/L No EPA limit set | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 31.1 µg/L 52% of the EPA limit 60 µg/L | 1/1 | SYR4 |
| Dibromochloromethane | 23.6 µg/L No EPA limit set | 1/1 | SYR4 |
| Trichloroacetic Acid | 13.7 µg/L No EPA limit set | 1/1 | SYR4 |
| Dichloroacetic Acid | 12 µg/L No EPA limit set | 1/1 | SYR4 |
| Selenium | 4 µg/L 8% of the EPA limit 50 µg/L | 1/1 | SYR4 |
| Bromoform | 3.8 µg/L No EPA limit set | 1/1 | SYR4 |
| Chromium | 3.7 µg/L 3.7% of the EPA limit 100 µg/L | 1/1 | SYR4 |
| Tetrachloroethylene | 2.98 µg/L 60% of the EPA limit 5 µg/L | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.09 µg/L No EPA limit set | 1/1 | SYR4 |
| Arsenic | 0.7700 µg/L 7.7% of the EPA limit 10 µg/L | 1/1 | SYR4 |
| Mercury | 0.2000 µg/L 10% of the EPA limit 2 µg/L | 1/1 | SYR4 |
| Pfpea | 0.0075 µg/L No EPA limit set | 1/1 | UCMR-5 |
| Lead | 0.0070 mg/L 47% of the EPA limit 0.0150 mg/L | 1/1 | LCR |
| Pfhxa | 0.0064 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFOS | 0.0044 µg/L No EPA limit set | 1/1 | UCMR-5 |
| PFBS | 0.0030 µg/L No EPA limit set | 1/1 | UCMR-5 |
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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 18101
| Supplier | State | Population served |
|---|---|---|
| LCA ALLENTOWN DIVISION | PA | 118,000 |
Frequently asked questions about ZIP 18101 tap water
Is the tap water in ZIP 18101 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 18101. 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 18101?
1 public water supplier report EPA drinking-water monitoring for ZIP 18101. Each is listed above with its population served.
What contaminants are in ZIP 18101's water?
EPA monitoring detected Nitrate, Fluoride, Copper, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.