What was found in Haverhill's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 3800 µg/L 38% of the EPA limit 10000 µg/L Highest in the city: FRENCH POND ESTATES · 27 people · 2019 | 4/5 | SYR4 |
| Copper | 237.5 µg/L 18% of the EPA limit 1300 µg/L Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019
Highest in the city: 1129 µg/L — FRENCH POND ESTATES · 27 people · 2017 | 5/5 | SYR4 |
| Fluoride | 269.5 µg/L 6.7% of the EPA limit 4000 µg/L Highest in the city: MOUNTAIN LAKES WATER DISTRICT · 787 people · 2019 | 1/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 84 µg/L 140% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019 | 4/5 | SYR4 |
| TTHM | 72.8 µg/L 91% of the EPA limit 80 µg/L Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019 | 4/5 | SYR4 |
| Chloroform | 66.4 µg/L No EPA limit set Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019 | 4/5 | SYR4 |
| Trichloroacetic Acid | 43 µg/L No EPA limit set Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019 | 3/5 | SYR4 |
| Dichloroacetic Acid | 41 µg/L No EPA limit set Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019 | 4/5 | SYR4 |
| Lead | 10.7 µg/L 71% of the EPA limit 15 µg/L Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019
Highest in the city: 31.75 µg/L — MOUNTAIN LAKES WATER DISTRICT · 787 people · 2019 | 5/5 | SYR4 |
| Barium | 11.75 µg/L 0.6% of the EPA limit 2000 µg/L Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019
Highest in the city: 19.85 µg/L — FRENCH POND ESTATES · 27 people · 2017 | 5/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.2000 pCi/L 1.3% of the EPA limit 15 pCi/L Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2016
Highest in the city: 7.065 pCi/L — MOUNTAIN LAKES WATER DISTRICT · 787 people · 2019 | 4/5 | SYR4 |
| Bromodichloromethane | 5.44 µg/L No EPA limit set Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019
Highest in the city: 6.1 µg/L — MOUNTAIN LAKES WATER DISTRICT · 787 people · 2019 | 4/5 | SYR4 |
| Arsenic | 3.57 µg/L 36% of the EPA limit 10 µg/L Highest in the city: PRECINCT OF HAVERHILL CORNER · 540 people · 2019 | 2/5 | SYR4 |
| Monochloroacetic Acid | 2.87 µg/L No EPA limit set Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019 | 1/5 | SYR4 |
| Dibromochloromethane | 1.56 µg/L No EPA limit set Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019
Highest in the city: 2.3 µg/L — NO HAVERHILL WATER AND LIGHT · 750 people · 2019 | 4/5 | SYR4 |
| Combined Uranium | 1.8 µg/L 6% of the EPA limit 30 µg/L Highest in the city: PRECINCT OF HAVERHILL CORNER · 540 people · 2015 | 3/5 | SYR4 |
| Monobromoacetic Acid | 1.8 µg/L No EPA limit set Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2019 | 1/5 | SYR4 |
| Bromoform | 1.525 µg/L No EPA limit set Highest in the city: NO HAVERHILL WATER AND LIGHT · 750 people · 2019 | 1/5 | SYR4 |
| Dibromoacetic Acid | 1.195 µg/L No EPA limit set Highest in the city: NO HAVERHILL WATER AND LIGHT · 750 people · 2019 | 1/5 | SYR4 |
| Combined Radium (-226 And -228) | 0.2000 pCi/L 4% of the EPA limit 5 pCi/L Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 2016
Highest in the city: 1 pCi/L — FRENCH POND ESTATES · 27 people · 2016 | 5/5 | SYR4 |
| Lead | 0.0360 mg/L 240% above the EPA limit of 0.0150 mg/L Main supplier: WOODSVILLE WATER AND LIGHT · 1,950 people · 1993 | 2/5 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Haverhill
| Supplier | Population served |
|---|---|
| WOODSVILLE WATER AND LIGHT | 1,950 |
| MOUNTAIN LAKES WATER DISTRICT | 787 |
| NO HAVERHILL WATER AND LIGHT | 750 |
| PRECINCT OF HAVERHILL CORNER | 540 |
| FRENCH POND ESTATES | 27 |
Frequently asked questions about Haverhill tap water
Is Haverhill tap water safe to drink?
EPA testing detected 21 contaminants in the water serving Haverhill. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Haverhill?
5 public water suppliers report drinking-water monitoring for Haverhill, New Hampshire to the EPA. Each is listed above with its population served.
What contaminants are in Haverhill's water?
The contaminants EPA monitoring detected in Haverhill include Nitrate, Copper, Fluoride, Total Haloacetic Acids (HAA5), TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.