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Tap water quality report

Concord, NH

EPA monitoring detected 18 contaminants across the 1 water supplier serving Concord. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
44,215
people served
18
contaminants found
New Hampshire rankings Lead in New Hampshire PFAS in New Hampshire

What was found in Concord'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
6000 µg/L 60%
of the EPA limit 10000 µg/L
 1/1 SYR4
Fluoride
650 µg/L 16%
of the EPA limit 4000 µg/L
 1/1 SYR4
TTHM
59 µg/L 74%
of the EPA limit 80 µg/L
 1/1 SYR4
Copper
53 µg/L 4.1%
of the EPA limit 1300 µg/L
 1/1 SYR4
Chloroform
53 µg/L
No EPA limit set
 1/1 SYR4
Total Haloacetic Acids (HAA5)
38 µg/L 63%
of the EPA limit 60 µg/L
 1/1 SYR4
Dichloroacetic Acid
21 µg/L
No EPA limit set
 1/1 SYR4
Trichloroacetic Acid
15 µg/L
No EPA limit set
 1/1 SYR4
Barium
7 µg/L 0.4%
of the EPA limit 2000 µg/L
 1/1 SYR4
Bromodichloromethane
6.6 µg/L
No EPA limit set
 1/1 SYR4
Lead
6 µg/L 40%
of the EPA limit 15 µg/L
 1/1 SYR4
Monochloroacetic Acid
3.2 µg/L
No EPA limit set
 1/1 SYR4
Di(2-ethylhexyl) Phthalate
3.1 µg/L 52%
of the EPA limit 6 µg/L
 1/1 SYR4
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/1 SYR4
Gross Alpha, Excl. Radon And U
1.8 pCi/L 12%
of the EPA limit 15 pCi/L
 1/1 SYR4
Dibromochloromethane
0.9800 µg/L
No EPA limit set
 1/1 SYR4
Combined Radium (-226 And -228)
0.9000 pCi/L 18%
of the EPA limit 5 pCi/L
 1/1 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 1/1 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 Concord

SupplierPopulation served
CONCORD WATER DEPT 44,215

Frequently asked questions about Concord tap water

Is Concord tap water safe to drink?

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

1 public water supplier report drinking-water monitoring for Concord, New Hampshire to the EPA. Each is listed above with its population served.

What contaminants are in Concord's water?

The contaminants EPA monitoring detected in Concord include Nitrate, Fluoride, TTHM, Copper, Chloroform. 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.