What was found in ZIP 01845
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 |
|---|---|---|---|
| Fluoride | 1040 µg/L 26% of the EPA limit 4000 µg/L Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Nitrate | 170 µg/L 1.7% of the EPA limit 10000 µg/L Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| TTHM | 39.245 µg/L 49% of the EPA limit 80 µg/L Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Chloroform | 19.625 µg/L No EPA limit set Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 11.05 µg/L No EPA limit set Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 10.94 µg/L 18% of the EPA limit 60 µg/L Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 10.1775 µg/L No EPA limit set Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Copper | 10 µg/L 0.8% of the EPA limit 1300 µg/L Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2014 | 1/1 | SYR4 |
| Dibromochloromethane | 8.615 µg/L No EPA limit set Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.782 µg/L No EPA limit set Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.186 µg/L No EPA limit set Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 1.938 µg/L No EPA limit set Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Bromoform | 1.325 µg/L No EPA limit set Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Bromate | 1.2 µg/L 12% of the EPA limit 10 µg/L Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0072 mg/L 48% of the EPA limit 0.0150 mg/L Main supplier: NORTH ANDOVER WATER DEPT · 30,915 people · 2023 | 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 01845
| Supplier | State | Population served |
|---|---|---|
| NORTH ANDOVER WATER DEPT | MA | 30,915 |
Frequently asked questions about ZIP 01845 tap water
Is the tap water in ZIP 01845 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 01845. 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 01845?
1 public water supplier report EPA drinking-water monitoring for ZIP 01845. Each is listed above with its population served.
What contaminants are in ZIP 01845's water?
EPA monitoring detected Fluoride, Nitrate, TTHM, Chloroform, Bromodichloromethane, and others across this ZIP's suppliers. The full list with levels and sources is above.