What was found in Fenwick Island's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 5400 µg/L 54% of the EPA limit 10000 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 10224.6 µg/L — CAPE WINDSOR COMMUNITY ASSOCIATION INC · 600 people · 2019 | 3/4 | SYR4 |
| Nitrate-Nitrite | 5400 µg/L 54% of the EPA limit 10000 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 10224.6 µg/L — CAPE WINDSOR COMMUNITY ASSOCIATION INC · 600 people · 2019 | 3/4 | SYR4 |
| Copper | 214.5999999999994 µg/L 17% of the EPA limit 1300 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 4/4 | SYR4 |
| Fluoride | 126.5 µg/L 3.2% of the EPA limit 4000 µg/L Highest in the city: MALLARD LAKES · 1,500 people · 2019 | 3/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.601 µg/L 2.7% of the EPA limit 60 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 59.21 µg/L — MALLARD LAKES · 1,500 people · 2019 | 4/4 | SYR4 |
| TTHM | 10.2 µg/L 13% of the EPA limit 80 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 47.09 µg/L — MALLARD LAKES · 1,500 people · 2019 | 4/4 | SYR4 |
| Chloroform | 4.3885 µg/L No EPA limit set Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 36.83 µg/L — MALLARD LAKES · 1,500 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 29.45 µg/L No EPA limit set Highest in the city: MALLARD LAKES · 1,500 people · 2019 | 3/4 | SYR4 |
| Dichloroacetic Acid | 28.66 µg/L No EPA limit set Highest in the city: MALLARD LAKES · 1,500 people · 2019 | 3/4 | SYR4 |
| Barium | 15.3 µg/L 0.8% of the EPA limit 2000 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 26 µg/L — CAPE WINDSOR COMMUNITY ASSOCIATION INC · 600 people · 2015 | 2/4 | SYR4 |
| Dibromochloromethane | 9.9865 µg/L No EPA limit set Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 3/4 | SYR4 |
| Bromodichloromethane | 8.4 µg/L No EPA limit set Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 9.377999999999998 µg/L — MALLARD LAKES · 1,500 people · 2019 | 4/4 | SYR4 |
| Xylenes, Total | 7.5419999999999945 µg/L 0.1% of the EPA limit 10000 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 3/4 | SYR4 |
| Lead | 5.259999999999999 µg/L 35% of the EPA limit 15 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 3/4 | SYR4 |
| Toluene | 1.016 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 5.21 µg/L — CAPE WINDSOR COMMUNITY ASSOCIATION INC · 600 people · 2019 | 2/4 | SYR4 |
| Bromoform | 3.9839999999999995 µg/L No EPA limit set Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 1/4 | SYR4 |
| Monochloroacetic Acid | 2.9949999999999997 µg/L No EPA limit set Highest in the city: MALLARD LAKES · 1,500 people · 2019 | 2/4 | SYR4 |
| Dibromoacetic Acid | 1.601 µg/L No EPA limit set Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019
Highest in the city: 2.4000000000000004 µg/L — MALLARD LAKES · 1,500 people · 2019 | 2/4 | SYR4 |
| Chromium | 1.9 µg/L 1.9% of the EPA limit 100 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 2/4 | SYR4 |
| Ethylbenzene | 1.564 µg/L 0.2% of the EPA limit 700 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.5700 pCi/L 11% of the EPA limit 5 pCi/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2013
Highest in the city: 1.1 pCi/L — SWANN KEYS · 1,764 people · 2019 | 4/4 | SYR4 |
| Vinyl Chloride | 0.7580 µg/L 38% of the EPA limit 2 µg/L Highest in the city: CAPE WINDSOR COMMUNITY ASSOCIATION INC · 600 people · 2019 | 1/4 | SYR4 |
| 2,4-D | 0.6000 µg/L 0.9% of the EPA limit 70 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 1/4 | SYR4 |
| Arsenic | 0.5900 µg/L 5.9% of the EPA limit 10 µg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2019 | 1/4 | SYR4 |
| Styrene | 0.5300 µg/L 0.5% of the EPA limit 100 µg/L Highest in the city: CAPE WINDSOR COMMUNITY ASSOCIATION INC · 600 people · 2019 | 1/4 | SYR4 |
| Pfpea | 0.0135 µg/L No EPA limit set Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2023 | 1/4 | UCMR-5 |
| Pfba | 0.0080 µg/L No EPA limit set Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2023 | 1/4 | UCMR-5 |
| Pfhxa | 0.0036 µg/L No EPA limit set Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0023 mg/L 15% of the EPA limit 0.0150 mg/L Main supplier: BAYSIDE PUMP DISTRICT (TUI) · 8,400 people · 2023 | 4/4 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Fenwick Island
| Supplier | Population served |
|---|---|
| BAYSIDE PUMP DISTRICT (TUI) | 8,400 |
| SWANN KEYS | 1,764 |
| MALLARD LAKES | 1,500 |
| CAPE WINDSOR COMMUNITY ASSOCIATION INC | 600 |
Frequently asked questions about Fenwick Island tap water
Is Fenwick Island tap water safe to drink?
EPA testing detected 29 contaminants in the water serving Fenwick Island. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Fenwick Island?
4 public water suppliers report drinking-water monitoring for Fenwick Island, Delaware to the EPA. Each is listed above with its population served.
What contaminants are in Fenwick Island's water?
The contaminants EPA monitoring detected in Fenwick Island include Nitrate, Nitrate-Nitrite, Copper, Fluoride, Total Haloacetic Acids (HAA5). The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.