What was found in Wappinger'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 | 2350 µg/L 24% of the EPA limit 10000 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 2900 µg/L — WOODHILL GREEN · 483 people · 2019 | 8/10 | SYR4 |
| Nitrate-Nitrite | 1545 µg/L 15% of the EPA limit 10000 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2018 | 3/10 | SYR4 |
| Barium | 20.7 µg/L 1% of the EPA limit 2000 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 375 µg/L — BIRCHWOOD MOBILE HOME PARK · 56 people · 2017 | 8/10 | SYR4 |
| Fluoride | 101 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 160 µg/L — WAPPINGERS FALLS MOBILE HOME P · 115 people · 2019 | 4/10 | SYR4 |
| Lithium | 114 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2024 | 1/10 | UCMR-5 |
| Selenium | 60 µg/L 120% of the EPA limit, at the 95th percentile of samples — 50 µg/L Highest in the city: MONTCLAIR CONDOMINIUMS · 504 people · 2018 | 5/10 | SYR4 |
| Chromium | 2.463 µg/L 2.5% of the EPA limit 100 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 47.945 µg/L — MONTCLAIR CONDOMINIUMS · 504 people · 2018 | 5/10 | SYR4 |
| TTHM | 46 µg/L 57% of the EPA limit 80 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019 | 10/10 | SYR4 |
| Chloroform | 24.75 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 36.134 µg/L — COOPER ROAD TRAILER PARK · 24 people · 2019 | 10/10 | SYR4 |
| Cyanide | 27 µg/L 14% of the EPA limit 200 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019 | 1/10 | SYR4 |
| Total Haloacetic Acids (HAA5) | 15.655 µg/L 26% of the EPA limit 60 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019 | 10/10 | SYR4 |
| Bromodichloromethane | 13 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019 | 9/10 | SYR4 |
| Dibromochloromethane | 8.75 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 9.2 µg/L — VILLAGE CREST APARTMENTS · 600 people · 2019 | 9/10 | SYR4 |
| Dichloroacetic Acid | 8.935 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019 | 7/10 | SYR4 |
| Toluene | 8.79 µg/L 0.9% of the EPA limit 1000 µg/L Highest in the city: SUNSET FARMS MOBILE HOME PARK · 103 people · 2019 | 1/10 | SYR4 |
| Dibromoacetic Acid | 2.395 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 8.011 µg/L — BIRCHWOOD MOBILE HOME PARK · 56 people · 2017 | 8/10 | SYR4 |
| Bromoform | 1.5 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 7.2875 µg/L — VILLAGE CREST APARTMENTS · 600 people · 2019 | 9/10 | SYR4 |
| Gross Beta Particle Activity | 6.09 pCi/L No EPA limit set Highest in the city: MONTCLAIR CONDOMINIUMS · 504 people · 2016 | 3/10 | SYR4 |
| Monochloroacetic Acid | 5.755 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019 | 1/10 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.812 pCi/L 19% of the EPA limit 15 pCi/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2017
Highest in the city: 4.6 pCi/L — BIRCHWOOD MOBILE HOME PARK · 56 people · 2013 | 2/10 | SYR4 |
| Trichloroacetic Acid | 4.5925 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019 | 6/10 | SYR4 |
| Monobromoacetic Acid | 0.6140 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 3 µg/L — SUNSET FARMS MOBILE HOME PARK · 103 people · 2017 | 3/10 | SYR4 |
| Combined Radium (-226 And -228) | 0.4987 pCi/L 10% of the EPA limit 5 pCi/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2017
Highest in the city: 2.81 pCi/L — BIRCHWOOD MOBILE HOME PARK · 56 people · 2013 | 5/10 | SYR4 |
| Combined Uranium | 0.3948 µg/L 1.3% of the EPA limit 30 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2017
Highest in the city: 2.77413 µg/L — WOODHILL GREEN · 483 people · 2019 | 6/10 | SYR4 |
| Arsenic | 1.06 µg/L 11% of the EPA limit 10 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 2.7 µg/L — BIRCHWOOD MOBILE HOME PARK · 56 people · 2017 | 5/10 | SYR4 |
| Antimony, Total | 0.4000 µg/L 6.7% of the EPA limit 6 µg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2019
Highest in the city: 2.13 µg/L — SUNSET FARMS MOBILE HOME PARK · 103 people · 2018 | 4/10 | SYR4 |
| Cadmium | 0.9550 µg/L 19% of the EPA limit 5 µg/L Highest in the city: SUNSET FARMS MOBILE HOME PARK · 103 people · 2018 | 2/10 | SYR4 |
| Thallium, Total | 0.2000 µg/L 10% of the EPA limit 2 µg/L Highest in the city: SUNSET FARMS MOBILE HOME PARK · 103 people · 2018 | 2/10 | SYR4 |
| Pfba | 0.0053 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2024 | 1/10 | UCMR-5 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2025
Highest in the city: 0.0041 mg/L — BIRCHWOOD MOBILE HOME PARK · 56 people · 2023 | 10/10 | LCR |
| PFBS | 0.0030 µg/L No EPA limit set Main supplier: UNITED WAPPINGER WATER IMPROVEMENT DIST. · 14,000 people · 2024 | 1/10 | 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 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 Wappinger
| Supplier | Population served |
|---|---|
| UNITED WAPPINGER WATER IMPROVEMENT DIST. | 14,000 |
| CHELSEA RIDGE APARTMENTS | 2,303 |
| VILLAGE CREST APARTMENTS | 600 |
| FLEETWOOD MANOR W D | 564 |
| MONTCLAIR CONDOMINIUMS | 504 |
| WOODHILL GREEN | 483 |
| WAPPINGERS FALLS MOBILE HOME P | 115 |
| SUNSET FARMS MOBILE HOME PARK | 103 |
| BIRCHWOOD MOBILE HOME PARK | 56 |
| COOPER ROAD TRAILER PARK | 24 |
Frequently asked questions about Wappinger tap water
Is Wappinger tap water safe to drink?
EPA testing detected 31 contaminants in the water serving Wappinger. 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 Wappinger?
10 public water suppliers report drinking-water monitoring for Wappinger, New York to the EPA. Each is listed above with its population served.
What contaminants are in Wappinger's water?
The contaminants EPA monitoring detected in Wappinger include Nitrate, Nitrate-Nitrite, Barium, Fluoride, Lithium. 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.