Lebanon Water Hardness & Quality Report (2026)
Water Hardness
7.3 grains per gallon
Source
river
pH Level
7.7
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
192.2 mg/L
Est. Daily Cost
$0.33
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 Lebanon, your appliances are currently losing 17% efficiency due to mineral buildup.
| Appliance | In Lebanon | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.5 yrs | 8.5 yrs | -35% |
| Washing Machine | 9 yrs | 12 yrs | -25% |
| Water Heater | 10.6 yrs | 15 yrs | -29% |
Regional Water Comparison
How Lebanon compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lebanon, Indiana | 125 mg/L | 3.5 ppt | 🟠 Hard | river |
| Brownsburg, Indiana | 167 mg/L | 5.1 ppt | 🟠 Hard | river |
| Zionsville, Indiana | 128.5 mg/L | 3.7 ppt | 🟠 Hard | river |
| Frankfort, Indiana | 148.5 mg/L | 4.4 ppt | 🟠 Hard | river |
| Fairfield Heights, Indiana | 162 mg/L | 4.9 ppt | 🟠 Hard | river |
National Benchmark
How Lebanon compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lebanon | 125 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Lebanon's Water Unique?
Local geology and source profile
Lebanon, Indiana, in Boone County — the Boone County seat adjacent to Zionsville and Whitestown on Big Walnut Creek in central Indiana — receives its municipal water from the Lebanon Water Division, drawing from Big Walnut Creek (Boone County) through the Lebanon treatment plant.
The moderately hard 125 mg/L hardness and TDS of 192.2 mg/L reflect the central Indiana Big Walnut Creek supply's moderate carbonate character — consistent with the Wabash River tributary system Indiana communities. The Big Walnut Creek at Boone County drains the Indiana Till Plain — Silurian Niagara Dolomite (the dominant central Indiana carbonate platform — very high purity dolomite), Ordovician Trenton Limestone (calcareous), and calcareous Pleistocene Tipton Till (glacially ground dolomite and limestone). The Niagara Dolomite and Tipton Till leaching produces the moderately hard central Indiana supply.
At 125 mg/L, Lebanon'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 3.5 ppt is low — the Boone County central Indiana agricultural and suburban corridor has limited major AFFF military sources, and the Big Walnut Creek headwaters are relatively clean.
Geology & Source: Lebanon in Boone County draws from the Lebanon Water Division on Big Walnut Creek (Boone County, central Indiana) — Big Walnut Creek drains the Indiana Till Plain (Silurian Niagara Dolomite, Ordovician Trenton Limestone, calcareous Pleistocene Tipton Till) — Indiana Boone County Big Walnut Creek Silurian-Ordovician carbonate watershed produces moderately hard water at 125 mg/L with TDS 192.2 mg/L in this Boone County Indiana city.