What was found in Royalton'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 | 1001 µg/L 25% of the EPA limit 4000 µg/L Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2019 | 1/3 | SYR4 |
| Nitrate | 200 µg/L 2% of the EPA limit 10000 µg/L Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2016 | 1/3 | SYR4 |
| Nitrate-Nitrite | 194.39 µg/L 1.9% of the EPA limit 10000 µg/L Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2019 | 1/3 | SYR4 |
| TTHM | 66.357 µg/L 83% of the EPA limit 80 µg/L Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019
Highest in the city: 71.678 µg/L — HARTLAND WD · 4,117 people · 2019 | 3/3 | SYR4 |
| Chloroform | 43.6495 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019
Highest in the city: 48.7565 µg/L — HARTLAND WD · 4,117 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 37.687 µg/L 63% of the EPA limit 60 µg/L Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 23.7205 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019 | 3/3 | SYR4 |
| Barium | 21.365 µg/L 1.1% of the EPA limit 2000 µg/L Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 16.158 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019
Highest in the city: 16.3835 µg/L — HARTLAND WD · 4,117 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 15.9115 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 4.938 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019
Highest in the city: 9 µg/L — NIAGARA COUNTY WATER DISTRICT · 0 people · 2013 | 3/3 | SYR4 |
| Dibromochloromethane | 6.3475 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019
Highest in the city: 6.387 µg/L — HARTLAND WD · 4,117 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 1.926 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019
Highest in the city: 2.119 µg/L — HARTLAND WD · 4,117 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 1.418 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019
Highest in the city: 1.96 µg/L — HARTLAND WD · 4,117 people · 2019 | 3/3 | SYR4 |
| Bromoform | 1.66 µg/L No EPA limit set Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2019
Highest in the city: 1.6945 µg/L — HARTLAND WD · 4,117 people · 2019 | 3/3 | SYR4 |
| Arsenic | 0.8900 µg/L 8.9% of the EPA limit 10 µg/L Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2019 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.1200 pCi/L 2.4% of the EPA limit 5 pCi/L Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2014 | 1/3 | SYR4 |
| Combined Uranium | 0.0360 µg/L 0.1% of the EPA limit 30 µg/L Highest in the city: NIAGARA COUNTY WATER DISTRICT · 0 people · 2014 | 1/3 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: ROYALTON TOWNWIDE WATER DIST. · 7,710 people · 2025
Highest in the city: 0.0060 mg/L — NIAGARA COUNTY WATER DISTRICT · 0 people · 2023 | 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 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 Royalton
| Supplier | Population served |
|---|---|
| ROYALTON TOWNWIDE WATER DIST. | 7,710 |
| HARTLAND WD | 4,117 |
| NIAGARA COUNTY WATER DISTRICT | 0 |
Frequently asked questions about Royalton tap water
Is Royalton tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Royalton. 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 Royalton?
3 public water suppliers report drinking-water monitoring for Royalton, New York to the EPA. Each is listed above with its population served.
What contaminants are in Royalton's water?
The contaminants EPA monitoring detected in Royalton include Fluoride, Nitrate, Nitrate-Nitrite, TTHM, Chloroform. 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.