What was found in Warwick'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 | 3375 µg/L 34% of the EPA limit 10000 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019
Highest in the city: 4720 µg/L — EURICH HEIGHTS · 130 people · 2019 | 11/11 | SYR4 |
| Barium | 26 µg/L 1.3% of the EPA limit 2000 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019
Highest in the city: 3620.56 µg/L — STERLING LAKE · 225 people · 2019 | 10/11 | SYR4 |
| Fluoride | 560 µg/L 14% of the EPA limit 4000 µg/L Highest in the city: KINGS ESTATES · 1,144 people · 2019 | 7/11 | SYR4 |
| TTHM | 61.25 µg/L 77% of the EPA limit 80 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019
Highest in the city: 129.03 µg/L — BLUE LAKE · 1,850 people · 2019 | 11/11 | SYR4 |
| Total Haloacetic Acids (HAA5) | 45.6 µg/L 76% of the EPA limit 60 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019
Highest in the city: 64.845 µg/L — BLUE LAKE · 1,850 people · 2019 | 11/11 | SYR4 |
| Combined Uranium | 25.0544 µg/L 84% of the EPA limit 30 µg/L Highest in the city: BELLVALE PARK W.D. · 100 people · 2019 | 5/11 | SYR4 |
| Chromium | 24 µg/L 24% of the EPA limit 100 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019 | 4/11 | SYR4 |
| Chloroform | 15.6 µg/L No EPA limit set Highest in the city: BLUE LAKE · 1,850 people · 2019 | 4/11 | SYR4 |
| Gross Alpha, Excl. Radon And U | 12.495 pCi/L 83% of the EPA limit 15 pCi/L Highest in the city: BELLVALE PARK W.D. · 100 people · 2019 | 3/11 | SYR4 |
| Nitrate-Nitrite | 10 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the city: STERLING LAKE · 225 people · 2018 | 1/11 | SYR4 |
| Cyanide | 7 µg/L 3.5% of the EPA limit 200 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019 | 1/11 | SYR4 |
| Bromodichloromethane | 5.1 µg/L No EPA limit set Highest in the city: HILLSIDE (FKA RURAL ATLANTIC) · 74 people · 2013 | 3/11 | SYR4 |
| Selenium | 4.785 µg/L 9.6% of the EPA limit 50 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019 | 2/11 | SYR4 |
| Combined Radium (-226 And -228) | 2.894 pCi/L 58% of the EPA limit 5 pCi/L Highest in the city: KINGS ESTATES · 1,144 people · 2019 | 3/11 | SYR4 |
| Gross Beta Particle Activity | 2.04 pCi/L No EPA limit set Highest in the city: KINGS ESTATES · 1,144 people · 2013 | 1/11 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.9 µg/L 32% of the EPA limit 6 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019 | 1/11 | SYR4 |
| Arsenic | 0.7850 µg/L 7.9% of the EPA limit 10 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019
Highest in the city: 1.4 µg/L — STERLING LAKE · 225 people · 2019 | 3/11 | SYR4 |
| Toluene | 0.8000 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: HILLSIDE (FKA RURAL ATLANTIC) · 74 people · 2019 | 1/11 | SYR4 |
| Bromoform | 0.7000 µg/L No EPA limit set Highest in the city: PINE ISLAND WATER CO. · 144 people · 2014 | 2/11 | SYR4 |
| Pentachlorophenol | 0.0960 µg/L 9.6% of the EPA limit 1 µg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2019 | 1/11 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: WARWICK VILLAGE · 6,800 people · 2023
Highest in the city: 0.0154 mg/L — HILLSIDE (FKA RURAL ATLANTIC) · 74 people · 2024 | 11/11 | 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 Warwick
| Supplier | Population served |
|---|---|
| WARWICK VILLAGE | 6,800 |
| BLUE LAKE | 1,850 |
| WESTSIDE GREENWOOD LAKE W.D. | 1,700 |
| WICKHAM VILLAGE | 1,147 |
| KINGS ESTATES | 1,144 |
| KNOLLS WATER CO., INC. | 230 |
| STERLING LAKE | 225 |
| PINE ISLAND WATER CO. | 144 |
| EURICH HEIGHTS | 130 |
| BELLVALE PARK W.D. | 100 |
| HILLSIDE (FKA RURAL ATLANTIC) | 74 |
Frequently asked questions about Warwick tap water
Is Warwick tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Warwick. 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 Warwick?
11 public water suppliers report drinking-water monitoring for Warwick, New York to the EPA. Each is listed above with its population served.
What contaminants are in Warwick's water?
The contaminants EPA monitoring detected in Warwick include Nitrate, Barium, Fluoride, TTHM, 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.