Laconia Water Hardness & Quality Report (2026)
Water Hardness
1.9 grains per gallon
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
58.5 mg/L
Est. Daily Cost
$0.09
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Laconia, your appliances are currently losing 4% efficiency due to mineral buildup.
| Appliance | In Laconia | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.5 yrs | 8.5 yrs | — |
| Washing Machine | 12.4 yrs | 12 yrs | — |
| Water Heater | 14.3 yrs | 15 yrs | -5% |
Regional Water Comparison
How Laconia compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Laconia, New Hampshire | 32 mg/L | 4.9 ppt | 🟢 Soft | reservoir |
| East Concord, New Hampshire | 27 mg/L | 4.6 ppt | 🟢 Soft | reservoir |
| Concord, New Hampshire | 77 mg/L | 8.5 ppt | 🟡 Moderately Hard | reservoir |
| Manchester, New Hampshire | 53 mg/L | 6.6 ppt | 🟢 Soft | reservoir |
| Rochester, New Hampshire | 56 mg/L | 6.8 ppt | 🟢 Soft | reservoir |
National Benchmark
How Laconia compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Laconia | 32 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Laconia's Water Unique?
Local geology and source profile
Laconia, New Hampshire, in Belknap County — the Belknap County seat adjacent to Gilford and Meredith on Lake Winnipesaukee in the Lakes Region of central New Hampshire — receives its municipal water from the Laconia Water Division, drawing from Opechee Bay (Lake Winnipesaukee, Belknap County) through the Laconia treatment plant.
The very soft 32 mg/L hardness and very low TDS of 58.5 mg/L reflect the Lakes Region's nearly insoluble White Mountain crystalline watershed character. Lake Winnipesaukee drains the White Mountains — Precambrian Oliverian Granite and gneiss (insoluble), Jurassic White Mountain Magma Series intrusions (Conway Granite — insoluble), and Triassic metamorphic country rock (insoluble). The entirely insoluble granite and gneiss Highland basement produces essentially no mineral hardness in the Lakes Region supply.
At 32 mg/L, Laconia's water is very soft — essentially no scale forms, soap lathers abundantly, and appliances maintain excellent efficiency. Annual descaling is sufficient. The PFAS level of 4.9 ppt warrants a certified drinking water filter — the Belknap County central New Hampshire industrial corridor and the New Hampshire PFAS background from Pease Air Force Base (Portsmouth — AFFF plume migrating into the Merrimack Valley PFAS complex) contribute to Laconia's readings despite the clean Lake Winnipesaukee source.
Geology & Source: Laconia in Belknap County draws from the Laconia Water Division on Opechee Bay (Lake Winnipesaukee, Belknap County, central New Hampshire) — Lake Winnipesaukee drains the White Mountains (Precambrian Oliverian Granite, Jurassic White Mountain Magma Series — insoluble crystalline) — New Hampshire Belknap County Lake Winnipesaukee White Mountain crystalline watershed produces very soft water at 32 mg/L with TDS 58.5 mg/L in this Belknap County New Hampshire city.