What was found in Hopewell twp.1106-'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 | 1300 µg/L 13% of the EPA limit 10000 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019
Highest in the city: 5032.5 µg/L — MERCER COUNTY CORRECTIONAL CENTER · 860 people · 2019 | 3/3 | SYR4 |
| Fluoride | 1284 µg/L 32% of the EPA limit 4000 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 2/3 | SYR4 |
| Barium | 327.5 µg/L 16% of the EPA limit 2000 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 3/3 | SYR4 |
| Copper | 145 µg/L 11% of the EPA limit 1300 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019
Highest in the city: 319.6 µg/L — MERCER COUNTY CORRECTIONAL CENTER · 860 people · 2019 | 3/3 | SYR4 |
| TTHM | 90.95 µg/L 114% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 3/3 | SYR4 |
| Chloroform | 76.76 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 70.04 µg/L 117% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 41 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 2/3 | SYR4 |
| Dichloroacetic Acid | 34.25 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 3/3 | SYR4 |
| Lead | 31.4 µg/L 209% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 14.285 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 2/3 | SYR4 |
| Monochloroacetic Acid | 11.09 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 1/3 | SYR4 |
| Dibromochloromethane | 4.683 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.06 pCi/L 27% of the EPA limit 15 pCi/L Highest in the city: MERCER COUNTY CORRECTIONAL CENTER · 860 people · 2012 | 1/3 | SYR4 |
| Combined Uranium | 3.7 µg/L 12% of the EPA limit 30 µg/L Highest in the city: WASHINGTON CROSSING PARK ESTATES · 356 people · 2018 | 1/3 | SYR4 |
| Chromium | 2.614 µg/L 2.6% of the EPA limit 100 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019
Highest in the city: 3.64 µg/L — WASHINGTON CROSSING PARK ESTATES · 356 people · 2018 | 3/3 | SYR4 |
| Arsenic | 1.00065 µg/L 10% of the EPA limit 10 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019
Highest in the city: 3.43 µg/L — WASHINGTON CROSSING PARK ESTATES · 356 people · 2018 | 3/3 | SYR4 |
| Dibromoacetic Acid | 1.168 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019
Highest in the city: 2.915 µg/L — WASHINGTON CROSSING PARK ESTATES · 356 people · 2019 | 3/3 | SYR4 |
| Monobromoacetic Acid | 2.63 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 1/3 | SYR4 |
| Selenium | 2.12 µg/L 4.2% of the EPA limit 50 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019
Highest in the city: 2.45 µg/L — WASHINGTON CROSSING PARK ESTATES · 356 people · 2018 | 3/3 | SYR4 |
| Bromoform | 0.8900 µg/L No EPA limit set Main supplier: TRENTON WATER WORKS · 217,000 people · 2019
Highest in the city: 1.387 µg/L — WASHINGTON CROSSING PARK ESTATES · 356 people · 2019 | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.5700 pCi/L 11% of the EPA limit 5 pCi/L Highest in the city: MERCER COUNTY CORRECTIONAL CENTER · 860 people · 2018 | 2/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.2910 µg/L 4.9% of the EPA limit 6 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2018 | 1/3 | SYR4 |
| Atrazine | 0.2300 µg/L 7.7% of the EPA limit 3 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2018 | 1/3 | SYR4 |
| 2,4-D | 0.1480 µg/L 0.2% of the EPA limit 70 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2018 | 1/3 | SYR4 |
| Mercury | 0.0959 µg/L 4.8% of the EPA limit 2 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2019 | 1/3 | SYR4 |
| Benzo(A)Pyrene | 0.0200 µg/L 10% of the EPA limit 0.2000 µg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2018 | 1/3 | SYR4 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: TRENTON WATER WORKS · 217,000 people · 2026 | 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 Hopewell twp.1106-
| Supplier | Population served |
|---|---|
| TRENTON WATER WORKS | 217,000 |
| MERCER COUNTY CORRECTIONAL CENTER | 860 |
| WASHINGTON CROSSING PARK ESTATES | 356 |
Frequently asked questions about Hopewell twp.1106- tap water
Is Hopewell twp.1106- tap water safe to drink?
EPA testing detected 28 contaminants in the water serving Hopewell twp.1106-. 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 Hopewell twp.1106-?
3 public water suppliers report drinking-water monitoring for Hopewell twp.1106-, New Jersey to the EPA. Each is listed above with its population served.
What contaminants are in Hopewell twp.1106-'s water?
The contaminants EPA monitoring detected in Hopewell twp.1106- include Nitrate, Fluoride, Barium, Copper, 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.