What was found in ZIP 08520
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 4975 µg/L 50% of the EPA limit 10000 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 2/3 | SYR4 |
| Nitrate-Nitrite | 4900 µg/L 49% of the EPA limit 10000 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 2/3 | SYR4 |
| Fluoride | 1135 µg/L 28% of the EPA limit 4000 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2018
Highest in the ZIP: 1390 µg/L — EAST WINDSOR MUA · 25,000 people · 2017 | 3/3 | SYR4 |
| Copper | 341 µg/L 26% of the EPA limit 1300 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2018 | 3/3 | SYR4 |
| Barium | 130.2 µg/L 6.5% of the EPA limit 2000 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2018 | 3/3 | SYR4 |
| Nitrite | 61.35 µg/L 6.1% of the EPA limit 1000 µg/L Highest in the ZIP: EAST WINDSOR MUA · 25,000 people · 2019 | 1/3 | SYR4 |
| Lithium | 27.5 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2025 | 3/3 | UCMR-5 |
| TTHM | 24.73 µg/L 31% of the EPA limit 80 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Lead | 19.1 µg/L 127% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2017 | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 10.627 pCi/L 71% of the EPA limit 15 pCi/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019
Highest in the ZIP: 13.63 pCi/L — EAST WINDSOR MUA · 25,000 people · 2014 | 2/3 | SYR4 |
| Dibromochloromethane | 8.12 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Bromoform | 7.9 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 7.345 µg/L 12% of the EPA limit 60 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 6.94 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 6.08 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 5.3 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 5.03 pCi/L 101% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Chloroform | 4.285 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 3/3 | SYR4 |
| Xylenes, Total | 3.99 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: EAST WINDSOR MUA · 25,000 people · 2019 | 2/3 | SYR4 |
| Chromium | 3.875 µg/L 3.9% of the EPA limit 100 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2018 | 2/3 | SYR4 |
| Monochloroacetic Acid | 3.54 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 2/3 | SYR4 |
| Combined Uranium | 2.96292 µg/L 9.9% of the EPA limit 30 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019 | 1/3 | SYR4 |
| Dibromoacetic Acid | 2.1 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2019
Highest in the ZIP: 2.2545 µg/L — EAST WINDSOR MUA · 25,000 people · 2019 | 3/3 | SYR4 |
| Ethylbenzene | 2.025 µg/L 0.3% of the EPA limit 700 µg/L Highest in the ZIP: EAST WINDSOR MUA · 25,000 people · 2019 | 2/3 | SYR4 |
| Selenium | 1.185 µg/L 2.4% of the EPA limit 50 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2018 | 2/3 | SYR4 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L Highest in the ZIP: EAST WINDSOR MUA · 25,000 people · 2017 | 2/3 | SYR4 |
| Beryllium, Total | 0.6965 µg/L 17% of the EPA limit 4 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2018 | 1/3 | SYR4 |
| Mercury | 0.3410 µg/L 17% of the EPA limit 2 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2018 | 2/3 | SYR4 |
| Thallium, Total | 0.3000 µg/L 15% of the EPA limit 2 µg/L Highest in the ZIP: EAST WINDSOR MUA · 25,000 people · 2017 | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.1270 µg/L 2.1% of the EPA limit 6 µg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2018 | 1/3 | SYR4 |
| PFOA | 0.0116 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2025 | 1/3 | UCMR-5 |
| PFOS | 0.0114 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2025 | 1/3 | UCMR-5 |
| PFHXS | 0.0104 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2025 | 1/3 | UCMR-5 |
| Pfhxa | 0.0054 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2025 | 1/3 | UCMR-5 |
| Pfpea | 0.0046 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2025 | 1/3 | UCMR-5 |
| Pfhpa | 0.0034 µg/L No EPA limit set Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: AQUA NJ - HAMILTON SQUARE · 39,128 people · 2023
Highest in the ZIP: 0.0017 mg/L — HIGHTSTOWN WATER DEPARTMENT · 5,400 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.
Water suppliers serving ZIP 08520
| Supplier | State | Population served |
|---|---|---|
| AQUA NJ - HAMILTON SQUARE | NJ | 39,128 |
| EAST WINDSOR MUA | NJ | 25,000 |
| HIGHTSTOWN WATER DEPARTMENT | NJ | 5,400 |
Frequently asked questions about ZIP 08520 tap water
Is the tap water in ZIP 08520 safe to drink?
EPA testing detected 37 contaminants across the water suppliers serving ZIP 08520. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 08520?
3 public water suppliers report EPA drinking-water monitoring for ZIP 08520. Each is listed above with its population served.
What contaminants are in ZIP 08520's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.