What was found in ZIP 01841
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 | 998 µg/L 25% of the EPA limit 4000 µg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Nitrate | 570 µg/L 5.7% of the EPA limit 10000 µg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 2/2 | SYR4 |
| TTHM | 97.85 µg/L 122% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 2/2 | SYR4 |
| Chloroform | 85.655 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Chlorite | 85 µg/L 8.5% of the EPA limit 1000 µg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 52.865 µg/L 88% of the EPA limit 60 µg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 28.7 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 20.54 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 20.085 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Barium | 11 µg/L 0.5% of the EPA limit 2000 µg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019
Highest in the ZIP: 12.8 µg/L — METHUEN WATER DEPT · 53,059 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 7.6 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 6.1 pCi/L No EPA limit set Highest in the ZIP: METHUEN WATER DEPT · 53,059 people · 2012 | 1/2 | SYR4 |
| Monochloroacetic Acid | 4.2 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| 1,2-Dichloroethane | 2.42 µg/L 48% of the EPA limit 5 µg/L Highest in the ZIP: METHUEN WATER DEPT · 53,059 people · 2019 | 1/2 | SYR4 |
| Chromium | 2 µg/L 2% of the EPA limit 100 µg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.76 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Bromoform | 1.6 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 1.6 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Pentachlorophenol | 0.0900 µg/L 9% of the EPA limit 1 µg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0030 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2024
Highest in the ZIP: 0.0050 µg/L — METHUEN WATER DEPT · 53,059 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0031 µg/L No EPA limit set Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2024
Highest in the ZIP: 0.0040 µg/L — METHUEN WATER DEPT · 53,059 people · 2024 | 2/2 | UCMR-5 |
| PFOA | 0.0040 µg/L No EPA limit set Highest in the ZIP: METHUEN WATER DEPT · 53,059 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: LAWRENCE WATER WORKS · 89,143 people · 2025
Highest in the ZIP: 0.0016 mg/L — METHUEN WATER DEPT · 53,059 people · 2025 | 2/2 | 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 01841
| Supplier | State | Population served |
|---|---|---|
| LAWRENCE WATER WORKS | MA | 89,143 |
| METHUEN WATER DEPT | MA | 53,059 |
Frequently asked questions about ZIP 01841 tap water
Is the tap water in ZIP 01841 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 01841. 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 01841?
2 public water suppliers report EPA drinking-water monitoring for ZIP 01841. Each is listed above with its population served.
What contaminants are in ZIP 01841's water?
EPA monitoring detected Fluoride, Nitrate, TTHM, Chloroform, Chlorite, and others across this ZIP's suppliers. The full list with levels and sources is above.