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Tap water quality report

Manchester, NH

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Manchester. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
123,525
people served
18
contaminants found
New Hampshire rankings Lead in New Hampshire PFAS in New Hampshire

What was found in Manchester'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
2800 µg/L 28%
of the EPA limit 10000 µg/L
 2/2 SYR4
Copper
2000 µg/L 154%
of the EPA limit, in the worst sample — 1300 µg/L
 2/2 SYR4
Fluoride
710 µg/L 18%
of the EPA limit 4000 µg/L
 1/2 SYR4
Lead
49.2 µg/L 328%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Barium
42 µg/L 2.1%
of the EPA limit 2000 µg/L
 2/2 SYR4
TTHM
22 µg/L 28%
of the EPA limit 80 µg/L
 1/2 SYR4
Chloroform
16 µg/L
No EPA limit set
 1/2 SYR4
Total Haloacetic Acids (HAA5)
16 µg/L 27%
of the EPA limit 60 µg/L
 1/2 SYR4
Dichloroacetic Acid
9 µg/L
No EPA limit set
 1/2 SYR4
Trichloroacetic Acid
6.8 µg/L
No EPA limit set
 1/2 SYR4
Bromodichloromethane
5 µg/L
No EPA limit set
 1/2 SYR4
Gross Alpha, Excl. Radon And U
2.4 pCi/L 16%
of the EPA limit 15 pCi/L
 1/2 SYR4
Gross Beta Particle Activity
1.7 pCi/L
No EPA limit set
 1/2 SYR4
Combined Radium (-226 And -228)
1.6 pCi/L 32%
of the EPA limit 5 pCi/L
 2/2 SYR4
Dibromochloromethane
1.1 µg/L
No EPA limit set
 1/2 SYR4
Combined Uranium
0.4000 µg/L 1.3%
of the EPA limit 30 µg/L
 1/2 SYR4
PFOA
0.0050 µg/L
No EPA limit set
 1/2 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 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 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 Manchester

SupplierPopulation served
MANCHESTER WATER WORKS 123,500
ROCKWOOD TERRACE CONDOS 25

Frequently asked questions about Manchester tap water

Is Manchester tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Manchester. 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 Manchester?

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

What contaminants are in Manchester's water?

The contaminants EPA monitoring detected in Manchester include Nitrate, Copper, Fluoride, Lead, 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.