What was found in ZIP 02494
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 | 1030 µg/L 10% of the EPA limit 10000 µg/L Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Fluoride | 980 µg/L 25% of the EPA limit 4000 µg/L Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2018 | 1/1 | SYR4 |
| Barium | 68.5 µg/L 3.4% of the EPA limit 2000 µg/L Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2018 | 1/1 | SYR4 |
| Copper | 50.8 µg/L 3.9% of the EPA limit 1300 µg/L Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| TTHM | 49.025 µg/L 61% of the EPA limit 80 µg/L Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 17.765 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 17.24 µg/L 29% of the EPA limit 60 µg/L Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 15.18 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Chloroform | 14.225 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 12.65 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Bromoform | 5.8 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.1 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 4.44 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 1.8 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.09 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Chlorobenzene | 0.8000 µg/L 0.8% of the EPA limit 100 µg/L Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2023 | 1/1 | LCR |
| PFOS | 0.0050 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0046 µg/L No EPA limit set Main supplier: NEEDHAM WATER DEPT · 31,664 people · 2024 | 1/1 | UCMR-5 |
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 02494
| Supplier | State | Population served |
|---|---|---|
| NEEDHAM WATER DEPT | MA | 31,664 |
Frequently asked questions about ZIP 02494 tap water
Is the tap water in ZIP 02494 safe to drink?
EPA testing detected 19 contaminants across the water suppliers serving ZIP 02494. 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 02494?
1 public water supplier report EPA drinking-water monitoring for ZIP 02494. Each is listed above with its population served.
What contaminants are in ZIP 02494's water?
EPA monitoring detected Nitrate, Fluoride, Barium, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.