What was found in ZIP 01834
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 | 1340 µg/L 34% of the EPA limit 4000 µg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2018 | 2/2 | SYR4 |
| Nitrate | 1010 µg/L 10% of the EPA limit 10000 µg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2018
Highest in the ZIP: 1320 µg/L — GROVELAND WATER DEPARTMENT · 6,508 people · 2018 | 2/2 | SYR4 |
| TTHM | 74.015 µg/L 93% of the EPA limit 80 µg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2019 | 2/2 | SYR4 |
| Copper | 40 µg/L 3.1% of the EPA limit 1300 µg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2013 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 32.25 µg/L 54% of the EPA limit 60 µg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2019
Highest in the ZIP: 32.463 µg/L — GROVELAND WATER DEPARTMENT · 6,508 people · 2019 | 2/2 | SYR4 |
| Barium | 10.75 µg/L 0.5% of the EPA limit 2000 µg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2018
Highest in the ZIP: 14.525 µg/L — GROVELAND WATER DEPARTMENT · 6,508 people · 2018 | 2/2 | SYR4 |
| Selenium | 10 µg/L 20% of the EPA limit 50 µg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2018 | 1/2 | SYR4 |
| Antimony, Total | 3 µg/L 50% of the EPA limit 6 µg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2018 | 1/2 | SYR4 |
| Pfpea | 0.0073 µg/L No EPA limit set Highest in the ZIP: GROVELAND WATER DEPARTMENT · 6,508 people · 2024 | 1/2 | UCMR-5 |
| PFOA | 0.0063 µg/L No EPA limit set Highest in the ZIP: GROVELAND WATER DEPARTMENT · 6,508 people · 2024 | 1/2 | UCMR-5 |
| Pfhxa | 0.0048 µg/L No EPA limit set Highest in the ZIP: GROVELAND WATER DEPARTMENT · 6,508 people · 2024 | 1/2 | UCMR-5 |
| Pfhpa | 0.0041 µg/L No EPA limit set Highest in the ZIP: GROVELAND WATER DEPARTMENT · 6,508 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HAVERHILL WATER DEPT · 61,277 people · 2023 | 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 01834
| Supplier | State | Population served |
|---|---|---|
| HAVERHILL WATER DEPT | MA | 61,277 |
| GROVELAND WATER DEPARTMENT | MA | 6,508 |
Frequently asked questions about ZIP 01834 tap water
Is the tap water in ZIP 01834 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 01834. 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 01834?
2 public water suppliers report EPA drinking-water monitoring for ZIP 01834. Each is listed above with its population served.
What contaminants are in ZIP 01834's water?
EPA monitoring detected Fluoride, Nitrate, TTHM, Copper, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.