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Tap water quality report

Laconia, NH

EPA monitoring detected 19 contaminants across the 5 water suppliers serving Laconia. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

5
water suppliers
17,624
people served
19
contaminants found
New Hampshire rankings Lead in New Hampshire PFAS in New Hampshire

What was found in Laconia'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
Fluoride
3900 µg/L 98%
of the EPA limit 4000 µg/L
 4/5 SYR4
Copper
190 µg/L 15%
of the EPA limit 1300 µg/L
 5/5 SYR4
TTHM
103.59 µg/L 129%
of the EPA limit, in the worst sample — 80 µg/L
 1/5 SYR4
Chloroform
93 µg/L
No EPA limit set
 1/5 SYR4
Lead
69.2 µg/L 461%
of the EPA limit, in the worst sample — 15 µg/L
 5/5 SYR4
Barium
65 µg/L 3.3%
of the EPA limit 2000 µg/L
 3/5 SYR4
Total Haloacetic Acids (HAA5)
29 µg/L 48%
of the EPA limit 60 µg/L
 1/5 SYR4
Dichloroacetic Acid
21 µg/L
No EPA limit set
 1/5 SYR4
Trichloroacetic Acid
19 µg/L
No EPA limit set
 1/5 SYR4
Bromodichloromethane
9.9 µg/L
No EPA limit set
 1/5 SYR4
Combined Uranium
6.7 µg/L 22%
of the EPA limit 30 µg/L
 2/5 SYR4
Gross Alpha, Excl. Radon And U
4.7 pCi/L 31%
of the EPA limit 15 pCi/L
 2/5 SYR4
P-Dichlorobenzene
3.7 µg/L 4.9%
of the EPA limit 75 µg/L
 1/5 SYR4
Chromium
3 µg/L 3%
of the EPA limit 100 µg/L
 1/5 SYR4
Arsenic
2.2 µg/L 22%
of the EPA limit 10 µg/L
 3/5 SYR4
Combined Radium (-226 And -228)
1.7 pCi/L 34%
of the EPA limit 5 pCi/L
 3/5 SYR4
Dibromochloromethane
1.4 µg/L
No EPA limit set
 1/5 SYR4
Dichloromethane
0.9000 µg/L 18%
of the EPA limit 5 µg/L
 1/5 SYR4
Lead
0.0720 mg/L 480%
above the EPA limit of 0.0150 mg/L
 4/5 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 Laconia

SupplierPopulation served
LACONIA WATER WORKS 17,125
PENDLETON COVE 204
WENTWORTH COVE ESTATES 140
MOUNTAIN VIEW APTS 100
WINDEMERE RIDGE 55

Frequently asked questions about Laconia tap water

Is Laconia tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Laconia. 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 Laconia?

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

What contaminants are in Laconia's water?

The contaminants EPA monitoring detected in Laconia include Fluoride, Copper, TTHM, Chloroform, Lead. 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.