What was found in ZIP 17551
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 | 7800 µg/L 78% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Copper | 3400 µg/L 262% of the EPA limit, in the worst sample — 1300 µg/L | 2/2 | SYR4 |
| Fluoride | 800 µg/L 20% of the EPA limit 4000 µg/L | 2/2 | SYR4 |
| TTHM | 161 µg/L 201% of the EPA limit, in the worst sample — 80 µg/L | 2/2 | SYR4 |
| Chloroform | 136 µg/L No EPA limit set | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 106 µg/L 177% of the EPA limit, in the worst sample — 60 µg/L | 2/2 | SYR4 |
| Lead | 91 µg/L 607% of the EPA limit, in the worst sample — 15 µg/L | 2/2 | SYR4 |
| Trichloroacetic Acid | 57.3 µg/L No EPA limit set | 1/2 | SYR4 |
| Barium | 51 µg/L 2.6% of the EPA limit 2000 µg/L | 2/2 | SYR4 |
| Bromodichloromethane | 38.9 µg/L No EPA limit set | 2/2 | SYR4 |
| Dichloroacetic Acid | 34.9 µg/L No EPA limit set | 1/2 | SYR4 |
| Dibromochloromethane | 9.2 µg/L No EPA limit set | 2/2 | SYR4 |
| Selenium | 6 µg/L 12% of the EPA limit 50 µg/L | 1/2 | SYR4 |
| Monochloroacetic Acid | 5.2 µg/L No EPA limit set | 1/2 | SYR4 |
| Chromium | 2.4 µg/L 2.4% of the EPA limit 100 µg/L | 1/2 | SYR4 |
| Bromoform | 1.7 µg/L No EPA limit set | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.52 µg/L No EPA limit set | 2/2 | SYR4 |
| Tetrachloroethylene | 0.7300 µg/L 15% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| Atrazine | 0.2874 µg/L 9.6% of the EPA limit 3 µg/L | 1/2 | SYR4 |
| Pfhxa | 0.0288 µg/L No EPA limit set | 2/2 | UCMR-5 |
| PFOA | 0.0238 µg/L No EPA limit set | 2/2 | UCMR-5 |
| Pfpea | 0.0223 µg/L No EPA limit set | 2/2 | UCMR-5 |
| Pfba | 0.0154 µg/L No EPA limit set | 2/2 | UCMR-5 |
| PFBS | 0.0098 µg/L No EPA limit set | 2/2 | UCMR-5 |
| Pfhpa | 0.0081 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0070 mg/L 47% of the EPA limit 0.0150 mg/L | 2/2 | LCR |
| PFOS | 0.0053 µg/L No EPA limit set | 1/2 | UCMR-5 |
| PFHXS | 0.0031 µg/L No EPA limit set | 1/2 | 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 17551
| Supplier | State | Population served |
|---|---|---|
| CITY OF LANCASTER | PA | 120,000 |
| MILLERSVILLE UNIV | PA | 7,950 |
Frequently asked questions about ZIP 17551 tap water
Is the tap water in ZIP 17551 safe to drink?
EPA testing detected 28 contaminants across the water suppliers serving ZIP 17551. 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 17551?
2 public water suppliers report EPA drinking-water monitoring for ZIP 17551. Each is listed above with its population served.
What contaminants are in ZIP 17551's water?
EPA monitoring detected Nitrate, Copper, Fluoride, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.