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Tap water quality report

ZIP 03303 — Concord, NH

EPA monitoring across the 2 water suppliers serving ZIP 03303 in Concord, NH detected 20 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
48,015
people served
20
contaminants found

What was found in ZIP 03303

The level at this ZIP's main supplier, the highest level anywhere in it, 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
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
2/2 SYR4
Fluoride
648 µg/L 16%
of the EPA limit 4000 µg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
1/2 SYR4
Copper
44 µg/L 3.4%
of the EPA limit 1300 µg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
Highest in the ZIP: 308.9 µg/L — PENACOOK BOSCAWEN WATER PCT · 3,800 people · 2019
2/2 SYR4
Lead
4 µg/L 27%
of the EPA limit 15 µg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2017
Highest in the ZIP: 205.3 µg/L — PENACOOK BOSCAWEN WATER PCT · 3,800 people · 2018
2/2 SYR4
TTHM
48.3 µg/L 60%
of the EPA limit 80 µg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
2/2 SYR4
Chloroform
41.45 µg/L
No EPA limit set
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
27.475 µg/L 46%
of the EPA limit 60 µg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
2/2 SYR4
Dichloroacetic Acid
15.65 µg/L
No EPA limit set
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
2/2 SYR4
Trichloroacetic Acid
14 µg/L
No EPA limit set
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
2/2 SYR4
Barium
6.545 µg/L 0.3%
of the EPA limit 2000 µg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
Highest in the ZIP: 7.76 µg/L — PENACOOK BOSCAWEN WATER PCT · 3,800 people · 2019
2/2 SYR4
Bromodichloromethane
5.9 µg/L
No EPA limit set
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
2/2 SYR4
Monochloroacetic Acid
3.125 µg/L
No EPA limit set
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
1/2 SYR4
Di(2-ethylhexyl) Phthalate
3.1 µg/L 52%
of the EPA limit 6 µg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
1.71 pCi/L 11%
of the EPA limit 15 pCi/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2016
Highest in the ZIP: 2.9 pCi/L — PENACOOK BOSCAWEN WATER PCT · 3,800 people · 2016
2/2 SYR4
Dibromochloromethane
0.8490 µg/L
No EPA limit set
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
Highest in the ZIP: 2.645 µg/L — PENACOOK BOSCAWEN WATER PCT · 3,800 people · 2019
2/2 SYR4
Chromium
1.95 µg/L 2%
of the EPA limit 100 µg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.1 µg/L
No EPA limit set
Highest in the ZIP: PENACOOK BOSCAWEN WATER PCT · 3,800 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
0.8200 pCi/L 16%
of the EPA limit 5 pCi/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2016
2/2 SYR4
Bromoform
0.6000 µg/L
No EPA limit set
Highest in the ZIP: PENACOOK BOSCAWEN WATER PCT · 3,800 people · 2019
1/2 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: CONCORD WATER DEPT · 44,215 people · 2023
2/2 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.

Water suppliers serving ZIP 03303

SupplierStatePopulation served
CONCORD WATER DEPT NH 44,215
PENACOOK BOSCAWEN WATER PCT NH 3,800

Frequently asked questions about ZIP 03303 tap water

Is the tap water in ZIP 03303 safe to drink?

EPA testing detected 20 contaminants across the water suppliers serving ZIP 03303. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 03303?

2 public water suppliers report EPA drinking-water monitoring for ZIP 03303. Each is listed above with its population served.

What contaminants are in ZIP 03303's water?

EPA monitoring detected Nitrate, Fluoride, Copper, Lead, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.