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Tap water quality report

Hudson, NH

EPA monitoring detected 23 contaminants across the 3 water suppliers serving Hudson. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

3
water suppliers
16,978
people served
23
contaminants found
New Hampshire rankings Lead in New Hampshire PFAS in New Hampshire

What was found in Hudson's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2126 µg/L 21%
of the EPA limit 10000 µg/L
 2/3 SYR4
Copper
874 µg/L 67%
of the EPA limit 1300 µg/L
 3/3 SYR4
Fluoride
360 µg/L 9%
of the EPA limit 4000 µg/L
 1/3 SYR4
TTHM
53 µg/L 66%
of the EPA limit 80 µg/L
 3/3 SYR4
Barium
48.041 µg/L 2.4%
of the EPA limit 2000 µg/L
 2/3 SYR4
Arsenic
35.6 µg/L 356%
of the EPA limit, in the worst sample — 10 µg/L
 2/3 SYR4
Chloroform
33 µg/L
No EPA limit set
 2/3 SYR4
Gross Alpha, Excl. Radon And U
23.4 pCi/L 156%
of the EPA limit, in the worst sample — 15 pCi/L
 2/3 SYR4
Total Haloacetic Acids (HAA5)
21 µg/L 35%
of the EPA limit 60 µg/L
 1/3 SYR4
Bromodichloromethane
14 µg/L
No EPA limit set
 2/3 SYR4
Trichloroacetic Acid
8.6 µg/L
No EPA limit set
 1/3 SYR4
Dibromochloromethane
8.5 µg/L
No EPA limit set
 3/3 SYR4
Dichloroacetic Acid
8.5 µg/L
No EPA limit set
 1/3 SYR4
Lead
5.2 µg/L 35%
of the EPA limit 15 µg/L
 3/3 SYR4
Monochloroacetic Acid
5 µg/L
No EPA limit set
 1/3 SYR4
Chromium
4.585 µg/L 4.6%
of the EPA limit 100 µg/L
 2/3 SYR4
Dibromoacetic Acid
2.1 µg/L
No EPA limit set
 1/3 SYR4
Bromoform
1.4 µg/L
No EPA limit set
 3/3 SYR4
Combined Radium (-226 And -228)
1.3 pCi/L 26%
of the EPA limit 5 pCi/L
 2/3 SYR4
PFOA
0.0090 µg/L
No EPA limit set
 1/3 UCMR-5
Pfpea
0.0050 µg/L
No EPA limit set
 1/3 UCMR-5
Pfhxa
0.0040 µg/L
No EPA limit set
 1/3 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 1/3 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 single worst sample on record — 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 Hudson

SupplierPopulation served
HUDSON WATER DEPT 16,700
HUDSON MOBILE HOME ESTS 220
FRANCOEUR APT/HUDSON MOTOR INN 58

Frequently asked questions about Hudson tap water

Is Hudson tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Hudson. 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 Hudson?

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

What contaminants are in Hudson's water?

The contaminants EPA monitoring detected in Hudson include Nitrate, Copper, Fluoride, TTHM, Barium. The full list, with the highest level found 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.