What was found in ZIP 02301
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 | 410.25 µg/L 4.1% of the EPA limit 10000 µg/L Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019
Highest in the ZIP: 460 µg/L — INIMA USA / AQUARIA LLC · 105,643 people · 2019 | 2/2 | SYR4 |
| TTHM | 104.66 µg/L 131% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019
Highest in the ZIP: 124.5 µg/L — INIMA USA / AQUARIA LLC · 105,643 people · 2018 | 2/2 | SYR4 |
| Chloroform | 60.82 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 9.48 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019
Highest in the ZIP: 50.36 µg/L — INIMA USA / AQUARIA LLC · 105,643 people · 2016 | 2/2 | SYR4 |
| Bromoform | 40.5 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019
Highest in the ZIP: 49.755 µg/L — INIMA USA / AQUARIA LLC · 105,643 people · 2016 | 2/2 | SYR4 |
| Barium | 47.6 µg/L 2.4% of the EPA limit 2000 µg/L Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 37.49 µg/L 62% of the EPA limit 60 µg/L Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 1.4 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019
Highest in the ZIP: 26.245 µg/L — INIMA USA / AQUARIA LLC · 105,643 people · 2018 | 2/2 | SYR4 |
| Bromodichloromethane | 25.18 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 24.605 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 13.95 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 2/2 | SYR4 |
| Arsenic | 6 µg/L 60% of the EPA limit 10 µg/L Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 4.404 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 2.225 µg/L No EPA limit set Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 2/2 | SYR4 |
| Selenium | 2 µg/L 4% of the EPA limit 50 µg/L Highest in the ZIP: INIMA USA / AQUARIA LLC · 105,643 people · 2019 | 1/2 | SYR4 |
| Dalapon | 1.2 µg/L 0.6% of the EPA limit 200 µg/L Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2018 | 1/2 | SYR4 |
| Thallium, Total | 1 µg/L 50% of the EPA limit 2 µg/L Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0040 mg/L 27% of the EPA limit 0.0150 mg/L Main supplier: BROCKTON WATER DEPARTMENT · 105,788 people · 2023 | 1/2 | 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 02301
| Supplier | State | Population served |
|---|---|---|
| BROCKTON WATER DEPARTMENT | MA | 105,788 |
| INIMA USA / AQUARIA LLC | MA | 105,643 |
Frequently asked questions about ZIP 02301 tap water
Is the tap water in ZIP 02301 safe to drink?
EPA testing detected 18 contaminants across the water suppliers serving ZIP 02301. 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 02301?
2 public water suppliers report EPA drinking-water monitoring for ZIP 02301. Each is listed above with its population served.
What contaminants are in ZIP 02301's water?
EPA monitoring detected Nitrate, TTHM, Chloroform, Dibromochloromethane, Bromoform, and others across this ZIP's suppliers. The full list with levels and sources is above.