Menomonie Water Hardness & Quality Report (2026)
Water Hardness
13.8 grains per gallon
Source
groundwater
pH Level
8.5
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
742.9 mg/L
Est. Daily Cost
$0.63
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 Menomonie, your appliances are currently losing 32% efficiency due to mineral buildup.
| Appliance | In Menomonie | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.8 yrs | 8.5 yrs | -79% |
| Washing Machine | 4.8 yrs | 12 yrs | -60% |
| Water Heater | 6.1 yrs | 15 yrs | -59% |
Regional Water Comparison
How Menomonie compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Menomonie, Wisconsin | 236.5 mg/L | 6.2 ppt | 🔴 Very Hard | groundwater |
| Eau Claire, Wisconsin | 168.5 mg/L | 4.7 ppt | 🟠 Hard | groundwater |
| Chippewa Falls, Wisconsin | 142 mg/L | 4.1 ppt | 🟠 Hard | groundwater |
| Red Wing, Minnesota | 198.5 mg/L | 5.7 ppt | 🔴 Very Hard | river |
| River Falls, Wisconsin | 129 mg/L | 3.8 ppt | 🟠 Hard | groundwater |
National Benchmark
How Menomonie compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Menomonie | 236.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Menomonie's Water Unique?
Local geology and source profile
Menomonie, Wisconsin, in Dunn County — the Dunn County seat adjacent to Colfax and Elk Mound on the Red Cedar River in west-central Wisconsin — receives its municipal water from the Menomonie Water Division, drawing from local groundwater wells in the Dunn County deep carbonate aquifer (west-central Wisconsin).
The very hard 236.5 mg/L hardness and very high TDS of 742.9 mg/L reflect the west-central Wisconsin deep Silurian-Ordovician dolomite aquifer's intense carbonate character — consistent with the statewide Wisconsin deep dolomite aquifer pattern (Oconomowoc: 258.5 mg/L, TDS 846.2; Fond du Lac: 400+ mg/L). The Dunn County aquifer is developed in Silurian Niagara Dolomite (very high purity dolomite — the dominant Wisconsin carbonate platform), Ordovician Prairie du Chien Group dolomite (calcareous), and Cambrian Jordan Sandstone. The near-pure dolomite bedrock dissolves steadily into groundwater, producing the very hard west-central Wisconsin carbonate supply.
At 236.5 mg/L with TDS 743, Menomonie's water is very hard. A water softener is strongly recommended. Scale builds rapidly on heating surfaces and appliances, and water heaters require annual descaling without softening. The PFAS level of 6.2 ppt warrants a certified drinking water filter — the Dunn County west-central Wisconsin light-industrial corridor and the regional agricultural PFAS background contribute to Menomonie's readings.
Geology & Source: Menomonie in Dunn County draws from local wells (Dunn County, west-central Wisconsin) — the Dunn County aquifer is developed in Silurian Niagara Dolomite and Ordovician Prairie du Chien dolomite bedrock (very high purity carbonate — highly soluble) — Wisconsin Dunn County Silurian-Ordovician dolomite bedrock aquifer produces very hard water at 236.5 mg/L with TDS 742.9 mg/L in this Dunn County Wisconsin city.