Wauconda Water Hardness & Quality Report (2026)
Water Hardness
9.5 grains per gallon
Source
river
pH Level
8
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
309.8 mg/L
Est. Daily Cost
$0.43
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 Wauconda, your appliances are currently losing 22% efficiency due to mineral buildup.
| Appliance | In Wauconda | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.2 yrs | 8.5 yrs | -51% |
| Washing Machine | 7.6 yrs | 12 yrs | -37% |
| Water Heater | 9.1 yrs | 15 yrs | -39% |
Regional Water Comparison
How Wauconda compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Wauconda, Illinois | 162.5 mg/L | 5.8 ppt | 🟠 Hard | river |
| Lake Zurich, Illinois | 270.5 mg/L | 9.4 ppt | 🔴 Very Hard | river |
| Round Lake, Illinois | 180.5 mg/L | 6.4 ppt | 🔴 Very Hard | river |
| Cary, Illinois | 119 mg/L | 4.3 ppt | 🟡 Moderately Hard | river |
| Round Lake Beach, Illinois | 180.5 mg/L | 6.4 ppt | 🔴 Very Hard | river |
National Benchmark
How Wauconda compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Wauconda | 162.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Wauconda's Water Unique?
Local geology and source profile
Wauconda, Illinois, in Lake County — a Lake County village adjacent to Barrington and Lakemoor in northwest Lake County — receives its water from the Wauconda Water Utility, drawing from Bangs Lake or Lake Michigan (Lake County) through the northwest Lake County distribution.
The moderately hard 162.5 mg/L hardness and TDS of 309.8 mg/L are slightly harder than other north Lake County communities (Beach Park: 125.5 mg/L) — reflecting the Wauconda inland position possibly drawing on local shallow dolomite groundwater blended with the Lake Michigan supply, producing slightly more mineral-rich water at this northwest Lake County location. The Wauconda water supply — Silurian Niagaran Dolomite (dolomitic — primary hardness contributor from the Niagara Escarpment underlying Lake County), Lake Michigan supply (moderately hard — secondary), and Ordovician calcareous formations (calcareous — minor contributor).
At 162.5 mg/L, Wauconda's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 5.8 ppt warrants a certified drinking water filter — Waukegan National Airport (Lake County — AFFF) and the north Lake County industrial corridor contribute to Wauconda's readings.
Geology & Source: Wauconda in Lake County draws from the Wauconda Water Utility on Bangs Lake or Lake Michigan (Lake County, northeast Illinois) — the Lake Michigan supply at Lake County draws from Silurian Niagaran Dolomite (dolomitic) — Illinois Lake County Lake Michigan-Bangs Lake Silurian dolomitic supply produces moderately hard water at 162.5 mg/L with TDS 309.8 mg/L.