Lebanon Water Hardness & Quality Report (2026)
Water Hardness
2.5 grains per gallon
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
80.2 mg/L
Est. Daily Cost
$0.11
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 6% efficiency due to mineral buildup.
| Appliance | In Lebanon | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.2 yrs | 8.5 yrs | -4% |
| Washing Machine | 12 yrs | 12 yrs | — |
| Water Heater | 13.9 yrs | 15 yrs | -7% |
Regional Water Comparison
How Lebanon compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lebanon, Oregon | 42.5 mg/L | 1.6 ppt | 🟢 Soft | reservoir |
| Albany, Oregon | 55 mg/L | 1.9 ppt | 🟢 Soft | reservoir |
| Corvallis, Oregon | 41.5 mg/L | 1.6 ppt | 🟢 Soft | reservoir |
| Four Corners, Oregon | 98.5 mg/L | 2.7 ppt | 🟡 Moderately Hard | reservoir |
| Salem, Oregon | 82 mg/L | 2.4 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Lebanon compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lebanon | 42.5 mg/L | 🟢 None |
| 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, Oregon, in Linn County — a Linn County city adjacent to Sweet Home and Albany on the South Santiam River in the central Willamette Valley — receives its municipal water from the Lebanon Water Division, drawing from the South Santiam River (Linn County) through the Lebanon treatment plant.
The soft 42.5 mg/L hardness and very low TDS of 80.2 mg/L reflect the central Oregon Willamette Valley's insoluble Cascade volcanic watershed character. The South Santiam River drains the Western Cascade Range — Miocene Western Cascades andesite (low solubility), Quaternary High Cascades basalt (moderately insoluble), and Oligocene Little Butte Volcanics (insoluble volcanic). The dominantly insoluble Cascade volcanic geology produces the soft central Willamette Valley supply.
At 42.5 mg/L, Lebanon's water is soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 1.6 ppt is very low — the Linn County central Oregon agricultural valley has very limited industrial PFAS sources, and the South Santiam Cascade headwaters are essentially pristine — making Lebanon one of the cleanest PFAS readings in this dataset.
Geology & Source: Lebanon in Linn County draws from the Lebanon Water Division on the South Santiam River (Linn County, north Willamette Valley, Oregon) — the South Santiam drains the Western Cascade Range (Miocene Western Cascades andesite, Quaternary High Cascades basalt — very low solubility volcanic) — Oregon Linn County South Santiam Cascade volcanic watershed produces soft water at 42.5 mg/L with TDS 80.2 mg/L in this Linn County Oregon city.