What was found in Niagara Falls'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 |
|---|---|---|---|
| Fluoride | 900 µg/L 23% of the EPA limit 4000 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 1/2 | SYR4 |
| Nitrate | 260 µg/L 2.6% of the EPA limit 10000 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2018 | 1/2 | SYR4 |
| Nitrate-Nitrite | 242.5 µg/L 2.4% of the EPA limit 10000 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2018 | 1/2 | SYR4 |
| Barium | 137.4549999999999 µg/L 6.9% of the EPA limit 2000 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 1/2 | SYR4 |
| TTHM | 50.207499999999996 µg/L 63% of the EPA limit 80 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019
Highest in the city: 58.78349999999999 µg/L — NIAGARA WATER IMPROVEMENT AREA · 8,100 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 39.128 µg/L 65% of the EPA limit 60 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 2/2 | SYR4 |
| Chloroform | 32.1625 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019
Highest in the city: 37.288 µg/L — NIAGARA WATER IMPROVEMENT AREA · 8,100 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 25.712999999999997 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 13.140999999999998 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019
Highest in the city: 15.187 µg/L — NIAGARA WATER IMPROVEMENT AREA · 8,100 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 12.1455 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019
Highest in the city: 13.424999999999999 µg/L — NIAGARA WATER IMPROVEMENT AREA · 8,100 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 7.380000000000001 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019
Highest in the city: 9.149999999999999 µg/L — NIAGARA WATER IMPROVEMENT AREA · 8,100 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 5.6359999999999975 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019
Highest in the city: 6.1625 µg/L — NIAGARA WATER IMPROVEMENT AREA · 8,100 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 3.2694999999999954 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 2/2 | SYR4 |
| Bromoform | 1.7445 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 1 µg/L No EPA limit set Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 1/2 | SYR4 |
| Chromium | 0.6500 µg/L 0.7% of the EPA limit 100 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 1/2 | SYR4 |
| Arsenic | 0.5000 µg/L 5% of the EPA limit 10 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 1/2 | SYR4 |
| Combined Uranium | 0.2210 µg/L 0.7% of the EPA limit 30 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2017 | 1/2 | SYR4 |
| Picloram | 0.1700 µg/L 0% of the EPA limit 500 µg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.1490 pCi/L 3% of the EPA limit 5 pCi/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2017 | 1/2 | SYR4 |
| Lead | 0.0059 mg/L 39% of the EPA limit 0.0150 mg/L Main supplier: NIAGARA FALLS WATER BOARD · 50,193 people · 2023 | 2/2 | 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 Niagara Falls
| Supplier | Population served |
|---|---|
| NIAGARA FALLS WATER BOARD | 50,193 |
| NIAGARA WATER IMPROVEMENT AREA | 8,100 |
Frequently asked questions about Niagara Falls tap water
Is Niagara Falls tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Niagara Falls. 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 Niagara Falls?
2 public water suppliers report drinking-water monitoring for Niagara Falls, New York to the EPA. Each is listed above with its population served.
What contaminants are in Niagara Falls's water?
The contaminants EPA monitoring detected in Niagara Falls include Fluoride, Nitrate, Nitrate-Nitrite, Barium, TTHM. 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.