Two Rivers Water Hardness & Quality Report (2026)
Water Hardness
7 grains per gallon
Source
groundwater
pH Level
7.7
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
292.8 mg/L
Est. Daily Cost
$0.32
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 Two Rivers, your appliances are currently losing 16% efficiency due to mineral buildup.
| Appliance | In Two Rivers | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.6 yrs | 8.5 yrs | -34% |
| Washing Machine | 9.2 yrs | 12 yrs | -23% |
| Water Heater | 10.8 yrs | 15 yrs | -28% |
Regional Water Comparison
How Two Rivers compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Two Rivers, Wisconsin | 120 mg/L | 3.6 ppt | 🟠 Hard | groundwater |
| Manitowoc, Wisconsin | 155.5 mg/L | 4.4 ppt | 🟠 Hard | groundwater |
| Sheboygan, Wisconsin | 232 mg/L | 6.1 ppt | 🔴 Very Hard | groundwater |
| Bellevue, Wisconsin | 97.5 mg/L | 3.1 ppt | 🟡 Moderately Hard | groundwater |
| Allouez, Wisconsin | 174.5 mg/L | 4.8 ppt | 🟠 Hard | groundwater |
National Benchmark
How Two Rivers compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Two Rivers | 120 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Two Rivers's Water Unique?
Local geology and source profile
Two Rivers, Wisconsin, in Manitowoc County — a Manitowoc County city adjacent to Manitowoc and Mishicot on Lake Michigan in east-central Wisconsin — receives its water from the City of Two Rivers Water Department, drawing from Silurian dolomite aquifer wells through the east-central Wisconsin distribution.
The moderately hard 120 mg/L hardness and TDS of 292.8 mg/L reflect the Manitowoc County Silurian dolomite supply's moderate character — the Silurian Niagaran Dolomite is highly dolomitic, but the Two Rivers zone taps shallower formations producing less extreme hardness than the deeper Manitowoc County dolomite wells (compare Manitowoc WI: 116/284 in Manitowoc County comparable; Mishicot WI: 123/300 in Manitowoc County comparable; Two Rivers consistent moderate from the same Manitowoc County Silurian dolomitic supply). The Manitowoc County aquifer — Silurian Niagaran Dolomite (highly dolomitic — primary hardness contributor), Ordovician Prairie du Chien Dolomite (dolomitic — secondary contributor), and Quaternary glacial outwash (calcareous — TDS contributor).
At 120 mg/L with TDS 293, Two Rivers' water is moderately hard — scale builds in appliances. Semi-annual descaling is appropriate. The PFAS level of 3.6 ppt is low — a clean result for east-central Wisconsin. Review the City of Two Rivers' annual water quality report.
Geology & Source: Two Rivers in Manitowoc County draws from the City of Two Rivers Water on the Manitowoc County aquifer (Manitowoc County, east-central Wisconsin) — the aquifer is developed in Silurian Niagaran Dolomite (highly dolomitic) and Ordovician Prairie du Chien Dolomite (dolomitic) — Wisconsin Manitowoc County Silurian dolomitic supply produces moderately hard water at 120 mg/L with TDS 292.8 mg/L.