What was found in ZIP 01890
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 | 1100 µg/L 28% of the EPA limit 4000 µg/L Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| TTHM | 43.995 µg/L 55% of the EPA limit 80 µg/L Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Chloroform | 29.23 µg/L No EPA limit set Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 11.4 µg/L 19% of the EPA limit 60 µg/L Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 11.165 µg/L No EPA limit set Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Barium | 9.55 µg/L 0.5% of the EPA limit 2000 µg/L Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 7.304 µg/L No EPA limit set Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 5.695 µg/L No EPA limit set Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 4.466 µg/L No EPA limit set Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 2.15 µg/L No EPA limit set Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Antimony, Total | 2 µg/L 33% of the EPA limit 6 µg/L Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Bromoform | 1.343 µg/L No EPA limit set Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Chromium | 1.2 µg/L 1.2% of the EPA limit 100 µg/L Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.01 µg/L No EPA limit set Main supplier: WINCHESTER WATER DEPT · 22,970 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0042 mg/L 28% of the EPA limit 0.0150 mg/L Main supplier: WINCHESTER WATER DEPT · 22,970 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 01890
| Supplier | State | Population served |
|---|---|---|
| WINCHESTER WATER DEPT | MA | 22,970 |
Frequently asked questions about ZIP 01890 tap water
Is the tap water in ZIP 01890 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 01890. 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 01890?
1 public water supplier report EPA drinking-water monitoring for ZIP 01890. Each is listed above with its population served.
What contaminants are in ZIP 01890's water?
EPA monitoring detected Fluoride, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Bromodichloromethane, and others across this ZIP's suppliers. The full list with levels and sources is above.