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Tap water quality report

Alstead, NH

EPA monitoring detected 12 contaminants across the 2 water suppliers serving Alstead. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
84
people served
12
contaminants found
New Hampshire rankings Lead in New Hampshire PFAS in New Hampshire

What was found in Alstead'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.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
488.21 µg/L 12%
of the EPA limit 4000 µg/L
Main supplier: WELL HILL · 60 people · 2017
Highest in the city: 808.5 µg/L — PAPERMILL VILLAGE · 24 people · 2019
2/2 SYR4
Nitrate
500 µg/L 5%
of the EPA limit 10000 µg/L
Highest in the city: PAPERMILL VILLAGE · 24 people · 2019
1/2 SYR4
Copper
102.25 µg/L 7.9%
of the EPA limit 1300 µg/L
Main supplier: WELL HILL · 60 people · 2017
Highest in the city: 307.5 µg/L — PAPERMILL VILLAGE · 24 people · 2019
2/2 SYR4
Barium
7.36009 µg/L 0.4%
of the EPA limit 2000 µg/L
Main supplier: WELL HILL · 60 people · 2017
Highest in the city: 15 µg/L — PAPERMILL VILLAGE · 24 people · 2019
2/2 SYR4
Arsenic
1.271 µg/L 13%
of the EPA limit 10 µg/L
Main supplier: WELL HILL · 60 people · 2017
Highest in the city: 3 µg/L — PAPERMILL VILLAGE · 24 people · 2019
2/2 SYR4
Combined Uranium
2.68165 µg/L 8.9%
of the EPA limit 30 µg/L
Highest in the city: PAPERMILL VILLAGE · 24 people · 2017
1/2 SYR4
Lead
2.2443 µg/L 15%
of the EPA limit 15 µg/L
Main supplier: WELL HILL · 60 people · 2017
1/2 SYR4
Chromium
1.024 µg/L 1%
of the EPA limit 100 µg/L
Main supplier: WELL HILL · 60 people · 2017
1/2 SYR4
Chloroform
0.7000 µg/L
No EPA limit set
Main supplier: WELL HILL · 60 people · 2019
1/2 SYR4
TTHM
0.7000 µg/L 0.9%
of the EPA limit 80 µg/L
Main supplier: WELL HILL · 60 people · 2019
1/2 SYR4
Toluene
0.5000 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: WELL HILL · 60 people · 2019
1/2 SYR4
Lead
0.0330 mg/L 220%
above the EPA limit of 0.0150 mg/L
Main supplier: WELL HILL · 60 people · 2006
1/2 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. 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 Alstead

SupplierPopulation served
WELL HILL 60
PAPERMILL VILLAGE 24

Frequently asked questions about Alstead tap water

Is Alstead tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Alstead. 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 Alstead?

2 public water suppliers report drinking-water monitoring for Alstead, New Hampshire to the EPA. Each is listed above with its population served.

What contaminants are in Alstead's water?

The contaminants EPA monitoring detected in Alstead include Fluoride, Nitrate, Copper, Barium, Arsenic. 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.