What was found in Rockville Center'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 |
|---|---|---|---|
| Copper | 156.15 µg/L 12% of the EPA limit 1300 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Nitrate | 66 µg/L 0.7% of the EPA limit 10000 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 61 µg/L 0.6% of the EPA limit 10000 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Barium | 8.3 µg/L 0.4% of the EPA limit 2000 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| TTHM | 6.27 µg/L 7.8% of the EPA limit 80 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Selenium | 6 µg/L 12% of the EPA limit 50 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Bromoform | 4.585 µg/L No EPA limit set Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.94 µg/L No EPA limit set Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Lead | 2.9025 µg/L 19% of the EPA limit 15 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 2.77 pCi/L No EPA limit set Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2016 | 1/1 | SYR4 |
| Dibromochloromethane | 2.36 µg/L No EPA limit set Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.2 µg/L No EPA limit set Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 2.16 µg/L 3.6% of the EPA limit 60 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Arsenic | 1.96 µg/L 20% of the EPA limit 10 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.946 pCi/L 39% of the EPA limit 5 pCi/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2016 | 1/1 | SYR4 |
| Combined Uranium | 1.075 µg/L 3.6% of the EPA limit 30 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2016 | 1/1 | SYR4 |
| Bromodichloromethane | 0.9280 µg/L No EPA limit set Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Thallium, Total | 0.3500 µg/L 18% of the EPA limit 2 µg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L Main supplier: ROCKVILLE CENTRE (V) · 24,700 people · 2024 | 1/1 | LCR |
Water suppliers serving Rockville Center
| Supplier | Population served |
|---|---|
| ROCKVILLE CENTRE (V) | 24,700 |
Frequently asked questions about Rockville Center tap water
Is Rockville Center tap water safe to drink?
EPA testing detected 19 contaminants in the water serving Rockville Center. 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 Rockville Center?
1 public water supplier report drinking-water monitoring for Rockville Center, New York to the EPA. Each is listed above with its population served.
What contaminants are in Rockville Center's water?
The contaminants EPA monitoring detected in Rockville Center include Copper, 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.