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Tap water quality report

Swanzey, NH

EPA monitoring detected 20 contaminants across the 7 water suppliers serving Swanzey. 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.

7
water suppliers
3,076
people served
20
contaminants found
New Hampshire rankings Lead in New Hampshire PFAS in New Hampshire

What was found in Swanzey'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
1895 µg/L 47%
of the EPA limit 4000 µg/L
Highest in the city: FOREST VIEW ESTATES · 180 people · 2019
3/7 SYR4
Nitrate
1700 µg/L 17%
of the EPA limit 10000 µg/L
Highest in the city: WEST SWANZEY WATER · 430 people · 2019
4/7 SYR4
Copper
281.5 µg/L 22%
of the EPA limit 1300 µg/L
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2018
Highest in the city: 1650 µg/L — EASTFIELD CROSSING · 113 people · 2019
7/7 SYR4
Nitrate-Nitrite
1500 µg/L 15%
of the EPA limit 10000 µg/L
Highest in the city: WEST SWANZEY WATER · 430 people · 2014
1/7 SYR4
TTHM
85 µg/L 106%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2019
3/7 SYR4
Chloroform
82.6 µg/L
No EPA limit set
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2019
3/7 SYR4
Lead
52.56 µg/L 350%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2018
7/7 SYR4
Barium
51.5394 µg/L 2.6%
of the EPA limit 2000 µg/L
Highest in the city: VIEW POINT COOP · 248 people · 2017
6/7 SYR4
Total Haloacetic Acids (HAA5)
36.98 µg/L 62%
of the EPA limit 60 µg/L
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2019
3/7 SYR4
Trichloroacetic Acid
26.8 µg/L
No EPA limit set
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2019
2/7 SYR4
Dichloroacetic Acid
15.6 µg/L
No EPA limit set
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2019
3/7 SYR4
Gross Alpha, Excl. Radon And U
8.77 pCi/L 58%
of the EPA limit 15 pCi/L
Highest in the city: PINE GROVE MOBILE HOME PARK · 305 people · 2018
4/7 SYR4
Arsenic
7.7 µg/L 77%
of the EPA limit 10 µg/L
Highest in the city: VIEW POINT COOP · 248 people · 2019
2/7 SYR4
Bromodichloromethane
6.46 µg/L
No EPA limit set
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2019
3/7 SYR4
Chromium
4 µg/L 4%
of the EPA limit 100 µg/L
Highest in the city: FOREST VIEW ESTATES · 180 people · 2019
2/7 SYR4
Combined Uranium
3.0275 µg/L 10%
of the EPA limit 30 µg/L
Highest in the city: ASHUELOT RIVER APTS · 100 people · 2018
2/7 SYR4
Dibromochloromethane
0.7800 µg/L
No EPA limit set
Main supplier: N SWANZEY WATER AND FIRE PRCT · 1,700 people · 2019
Highest in the city: 1.09 µg/L — PINE GROVE MOBILE HOME PARK · 305 people · 2019
3/7 SYR4
Combined Radium (-226 And -228)
0.7000 pCi/L 14%
of the EPA limit 5 pCi/L
Highest in the city: EASTFIELD CROSSING · 113 people · 2015
2/7 SYR4
Tetrachloroethylene
0.5000 µg/L 10%
of the EPA limit 5 µg/L
Highest in the city: WEST SWANZEY WATER · 430 people · 2019
1/7 SYR4
Lead
0.0640 mg/L 427%
above the EPA limit of 0.0150 mg/L
Highest in the city: PINE GROVE MOBILE HOME PARK · 305 people · 2006
4/7 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 Swanzey

SupplierPopulation served
N SWANZEY WATER AND FIRE PRCT 1,700
WEST SWANZEY WATER 430
PINE GROVE MOBILE HOME PARK 305
VIEW POINT COOP 248
FOREST VIEW ESTATES 180
EASTFIELD CROSSING 113
ASHUELOT RIVER APTS 100

Frequently asked questions about Swanzey tap water

Is Swanzey tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Swanzey. 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 Swanzey?

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

What contaminants are in Swanzey's water?

The contaminants EPA monitoring detected in Swanzey include Fluoride, Nitrate, Copper, Nitrate-Nitrite, 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.