What was found in ZIP 02056
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 | 2690 µg/L 27% of the EPA limit 10000 µg/L Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019
Highest in the ZIP: 3490 µg/L — WRENTHAM DEVELOPMENTAL CENTER · 937 people · 2019 | 3/3 | SYR4 |
| Barium | 58.7 µg/L 2.9% of the EPA limit 2000 µg/L Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2018 | 2/3 | SYR4 |
| TTHM | 51.39 µg/L 64% of the EPA limit 80 µg/L Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 2.1 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019
Highest in the ZIP: 33 µg/L — MCI NORFOLK/CEDAR JUNCTION/WALPOLE · 2,200 people · 2019 | 2/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.28 µg/L 10% of the EPA limit 60 µg/L Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019
Highest in the ZIP: 19.92 µg/L — MCI NORFOLK/CEDAR JUNCTION/WALPOLE · 2,200 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 18.32 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 15.48 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019 | 1/3 | SYR4 |
| Chloroform | 13.2 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019 | 1/3 | SYR4 |
| Bromoform | 9.51 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019 | 1/3 | SYR4 |
| Dichloroacetic Acid | 2.555 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019 | 1/3 | SYR4 |
| Dibromoacetic Acid | 2.51 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019 | 1/3 | SYR4 |
| Gross Beta Particle Activity | 1.3 pCi/L No EPA limit set Highest in the ZIP: MCI NORFOLK/CEDAR JUNCTION/WALPOLE · 2,200 people · 2014 | 1/3 | SYR4 |
| Monobromoacetic Acid | 1.2 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2019 | 1/3 | SYR4 |
| Thallium, Total | 1 µg/L 50% of the EPA limit 2 µg/L Highest in the ZIP: WRENTHAM DEVELOPMENTAL CENTER · 937 people · 2019 | 1/3 | SYR4 |
| Xylenes, Total | 0.6000 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: MCI NORFOLK/CEDAR JUNCTION/WALPOLE · 2,200 people · 2019 | 1/3 | SYR4 |
| PFOA | 0.0070 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2025 | 1/3 | UCMR-5 |
| Pfhxa | 0.0054 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2025 | 1/3 | UCMR-5 |
| Pfpea | 0.0050 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2025 | 1/3 | UCMR-5 |
| PFOS | 0.0045 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2025 | 1/3 | UCMR-5 |
| PFBS | 0.0040 µg/L No EPA limit set Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: NORFOLK WATER DIVISION · 7,602 people · 2025
Highest in the ZIP: 0.0010 mg/L — MCI NORFOLK/CEDAR JUNCTION/WALPOLE · 2,200 people · 2025 | 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 02056
| Supplier | State | Population served |
|---|---|---|
| NORFOLK WATER DIVISION | MA | 7,602 |
| MCI NORFOLK/CEDAR JUNCTION/WALPOLE | MA | 2,200 |
| WRENTHAM DEVELOPMENTAL CENTER | MA | 937 |
Frequently asked questions about ZIP 02056 tap water
Is the tap water in ZIP 02056 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 02056. 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 02056?
3 public water suppliers report EPA drinking-water monitoring for ZIP 02056. Each is listed above with its population served.
What contaminants are in ZIP 02056's water?
EPA monitoring detected Nitrate, Barium, TTHM, Trichloroacetic Acid, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.