What was found in ZIP 01011
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 | 150 µg/L 1.5% of the EPA limit 10000 µg/L Main supplier: CHESTER WATER DEPT · 750 people · 2019 | 1/1 | SYR4 |
| Chloroform | 99.3 µg/L No EPA limit set Main supplier: CHESTER WATER DEPT · 750 people · 2019 | 1/1 | SYR4 |
| TTHM | 89.395 µg/L 112% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: CHESTER WATER DEPT · 750 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 67.04 µg/L 112% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: CHESTER WATER DEPT · 750 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 34.2 µg/L No EPA limit set Main supplier: CHESTER WATER DEPT · 750 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 33 µg/L No EPA limit set Main supplier: CHESTER WATER DEPT · 750 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 3.264 µg/L No EPA limit set Main supplier: CHESTER WATER DEPT · 750 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 3.11 µg/L No EPA limit set Main supplier: CHESTER WATER DEPT · 750 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0047 mg/L 31% of the EPA limit 0.0150 mg/L Main supplier: CHESTER WATER DEPT · 750 people · 2020 | 1/1 | 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 01011
| Supplier | State | Population served |
|---|---|---|
| CHESTER WATER DEPT | MA | 750 |
Frequently asked questions about ZIP 01011 tap water
Is the tap water in ZIP 01011 safe to drink?
EPA testing detected 9 contaminants across the water suppliers serving ZIP 01011. 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 01011?
1 public water supplier report EPA drinking-water monitoring for ZIP 01011. Each is listed above with its population served.
What contaminants are in ZIP 01011's water?
EPA monitoring detected Nitrate, Chloroform, TTHM, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.