What was found in ZIP 19971
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 | 9700 µg/L 97% of the EPA limit 10000 µg/L | 2/3 | SYR4 |
| Nitrate-Nitrite | 9700 µg/L 97% of the EPA limit 10000 µg/L | 2/3 | SYR4 |
| Fluoride | 1166.2 µg/L 29% of the EPA limit 4000 µg/L | 1/3 | SYR4 |
| Copper | 758 µg/L 58% of the EPA limit 1300 µg/L | 3/3 | SYR4 |
| Barium | 376.7 µg/L 19% of the EPA limit 2000 µg/L | 2/3 | SYR4 |
| TTHM | 57.6 µg/L 72% of the EPA limit 80 µg/L | 3/3 | SYR4 |
| Chloroform | 36 µg/L No EPA limit set | 3/3 | SYR4 |
| Xylenes, Total | 26.9 µg/L 0.3% of the EPA limit 10000 µg/L | 2/3 | SYR4 |
| Lead | 16 µg/L 107% of the EPA limit, in the worst sample — 15 µg/L | 3/3 | SYR4 |
| Bromodichloromethane | 13.3 µg/L No EPA limit set | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 10.745 µg/L 18% of the EPA limit 60 µg/L | 3/3 | SYR4 |
| Dibromochloromethane | 9.65 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromoform | 8.92 µg/L No EPA limit set | 3/3 | SYR4 |
| Ethylbenzene | 4.67 µg/L 0.7% of the EPA limit 700 µg/L | 1/3 | SYR4 |
| Chromium | 4.4 µg/L 4.4% of the EPA limit 100 µg/L | 2/3 | SYR4 |
| Thallium, Total | 4.1 µg/L 205% of the EPA limit, in the worst sample — 2 µg/L | 1/3 | SYR4 |
| Trichloroacetic Acid | 3.99 µg/L No EPA limit set | 1/3 | SYR4 |
| Dichloroacetic Acid | 3.723 µg/L No EPA limit set | 2/3 | SYR4 |
| Dibromoacetic Acid | 3.21 µg/L No EPA limit set | 2/3 | SYR4 |
| Tetrachloroethylene | 2.33 µg/L 47% of the EPA limit 5 µg/L | 1/3 | SYR4 |
| Monochloroacetic Acid | 1.9 µg/L No EPA limit set | 1/3 | SYR4 |
| Selenium | 1.22 µg/L 2.4% of the EPA limit 50 µg/L | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.202 pCi/L 24% of the EPA limit 5 pCi/L | 2/3 | SYR4 |
| Cadmium | 0.8600 µg/L 17% of the EPA limit 5 µg/L | 1/3 | SYR4 |
| Arsenic | 0.8000 µg/L 8% of the EPA limit 10 µg/L | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7000 µg/L 12% of the EPA limit 6 µg/L | 2/3 | SYR4 |
| Beryllium, Total | 0.6800 µg/L 17% of the EPA limit 4 µg/L | 1/3 | SYR4 |
| Dinoseb | 0.2890 µg/L 4.1% of the EPA limit 7 µg/L | 1/3 | SYR4 |
| Di(2-ethylhexyl) Adipate | 0.2700 µg/L 0.1% of the EPA limit 400 µg/L | 2/3 | SYR4 |
| Atrazine | 0.2300 µg/L 7.7% of the EPA limit 3 µg/L | 1/3 | SYR4 |
| PFOA | 0.0149 µg/L No EPA limit set | 3/3 | UCMR-5 |
| Pfpea | 0.0094 µg/L No EPA limit set | 3/3 | UCMR-5 |
| PFBS | 0.0072 µg/L No EPA limit set | 3/3 | UCMR-5 |
| PFHXS | 0.0069 µg/L No EPA limit set | 2/3 | UCMR-5 |
| Pfhxa | 0.0066 µg/L No EPA limit set | 3/3 | UCMR-5 |
| PFOS | 0.0062 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Pfhpa | 0.0031 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Lead | 0.00071 mg/L 4.7% of the EPA limit 0.0150 mg/L | 3/3 | 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 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 19971
| Supplier | State | Population served |
|---|---|---|
| REHOBOTH PUMP DISTRICT (TUI) | 81,417 | |
| DEWEY BEACH WATER DEPARTMENT | DE | 31,000 |
| REHOBOTH BEACH WATER DEPARTMENT | DE | 25,000 |
Frequently asked questions about ZIP 19971 tap water
Is the tap water in ZIP 19971 safe to drink?
EPA testing detected 38 contaminants across the water suppliers serving ZIP 19971. 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 19971?
3 public water suppliers report EPA drinking-water monitoring for ZIP 19971. Each is listed above with its population served.
What contaminants are in ZIP 19971's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.