What was found in ZIP 03811
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 | 1900 µg/L 19% of the EPA limit 10000 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Fluoride | 842 µg/L 21% of the EPA limit 4000 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Copper | 336.4 µg/L 26% of the EPA limit 1300 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Barium | 217.7 µg/L 11% of the EPA limit 2000 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Lithium | 26.9 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2024 | 1/1 | UCMR-5 |
| Gross Alpha, Excl. Radon And U | 21.585 pCi/L 144% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| TTHM | 20.945 µg/L 26% of the EPA limit 80 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Chromium | 17.1 µg/L 17% of the EPA limit 100 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 14.36 µg/L 24% of the EPA limit 60 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Arsenic | 10.15 µg/L 102% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 9.865 pCi/L 197% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Chloroform | 9.7 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 9.5 µg/L 32% of the EPA limit 30 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 8.44 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 7.685 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Selenium | 7.55 µg/L 15% of the EPA limit 50 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Lead | 7 µg/L 47% of the EPA limit 15 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 6.4 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 5.555 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Bromoform | 4.17 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.51 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.6 µg/L 27% of the EPA limit 6 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| Toluene | 0.5700 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0075 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2024 | 1/1 | UCMR-5 |
| PFBS | 0.0072 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2024 | 1/1 | UCMR-5 |
| PFOA | 0.0072 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2024 | 1/1 | UCMR-5 |
| Pfhxa | 0.0051 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2024 | 1/1 | UCMR-5 |
| Pfpea | 0.0050 µg/L No EPA limit set Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2024 | 1/1 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: HAMPSTEAD AREA WATER · 7,153 people · 2024 | 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 03811
| Supplier | State | Population served |
|---|---|---|
| HAMPSTEAD AREA WATER | NH | 7,153 |
Frequently asked questions about ZIP 03811 tap water
Is the tap water in ZIP 03811 safe to drink?
EPA testing detected 29 contaminants across the water suppliers serving ZIP 03811. 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 03811?
1 public water supplier report EPA drinking-water monitoring for ZIP 03811. Each is listed above with its population served.
What contaminants are in ZIP 03811's water?
EPA monitoring detected Nitrate, Fluoride, Copper, Barium, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.