Lebanon Water Hardness & Quality Report (2026)
Water Hardness
11.3 grains per gallon
Source
river
pH Level
8.2
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
425.9 mg/L
Est. Daily Cost
$0.52
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 26% efficiency due to mineral buildup.
| Appliance | In Lebanon | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.2 yrs | 8.5 yrs | -62% |
| Washing Machine | 6.4 yrs | 12 yrs | -47% |
| Water Heater | 7.9 yrs | 15 yrs | -47% |
Regional Water Comparison
How Lebanon compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lebanon, Ohio | 193.5 mg/L | 7.6 ppt | 🔴 Very Hard | river |
| Springboro, Ohio | 104.5 mg/L | 4 ppt | 🟡 Moderately Hard | river |
| Mason, Ohio | 113 mg/L | 4.3 ppt | 🟡 Moderately Hard | river |
| Monroe, Ohio | 166 mg/L | 6.5 ppt | 🟠 Hard | river |
| Loveland, Ohio | 238.5 mg/L | 9.4 ppt | 🔴 Very Hard | river |
National Benchmark
How Lebanon compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lebanon | 193.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Lebanon's Water Unique?
Local geology and source profile
Lebanon, Ohio, in Warren County — the Warren County seat in southwest Ohio's Little Miami Scenic River valley, a historic Ohio community with National Historic Landmark downtown architecture and the famous Golden Lamb Inn (Ohio's oldest operating inn) — receives its municipal water from the Lebanon Water Works, which draws from the Little Miami River at the Lebanon intake in Warren County, or from the Great Miami River aquifer system through the Warren County corridor.
The moderately hard 193.5 mg/L hardness and elevated TDS of 425.9 mg/L reflect the Little Miami-Great Miami watershed's western Ohio dolomite geology — consistent with the broader Miami Valley pattern (Sidney 210 mg/L, Piqua 204 mg/L on the same Great Miami system). The Little Miami River drains Warren, Greene, and Clermont Counties over the Western Ohio Till Plain underlain by the Silurian Niagara Dolomite and Devonian limestone sequence. The Pleistocene glacial till covering Warren County is rich in calcareous fragments, contributing continuous carbonate dissolution to the Little Miami drainage. The finished supply reflects the Ohio dolomite platform's consistently hard character.
At 193.5 mg/L, Lebanon's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and bathroom fixtures develop calcium deposits. Quarterly descaling is appropriate. The PFAS level of 7.6 ppt warrants a certified drinking water filter — Wright-Patterson AFB in the Little Miami-Great Miami watershed (the US Air Force's primary logistics base — a major documented AFFF source), and the Warren County suburban-industrial corridor in the Dayton-Cincinnati I-71 corridor contribute to Lebanon's PFAS reading.
Geology & Source: Lebanon in Warren County draws from the Lebanon Water Works treating the Little Miami River or the Great Miami River — the Little Miami River drains the Western Ohio Till Plain (Pleistocene glacial till over Silurian dolomite and Devonian limestone) — Silurian dolomite and glacial carbonate till drainage produces moderately hard water at 193.5 mg/L with elevated TDS 426 mg/L in this Warren County Ohio city.