West Richland Water Hardness & Quality Report (2026)
Water Hardness
1.2 grains per gallon
Source
reservoir
pH Level
7.1
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
32.9 mg/L
Est. Daily Cost
$0.05
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 West Richland, your appliances are currently losing 3% efficiency due to mineral buildup.
| Appliance | In West Richland | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.9 yrs | 8.5 yrs | — |
| Washing Machine | 12.8 yrs | 12 yrs | — |
| Water Heater | 14.8 yrs | 15 yrs | -1% |
Regional Water Comparison
How West Richland compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ West Richland, Washington | 20.5 mg/L | 1.4 ppt | 🟢 Soft | reservoir |
| Richland, Washington | 31.5 mg/L | 1.8 ppt | 🟢 Soft | reservoir |
| Tri-Cities, Washington | 26 mg/L | 1.6 ppt | 🟢 Soft | reservoir |
| Kennewick, Washington | 75.5 mg/L | 3.2 ppt | 🟡 Moderately Hard | reservoir |
| Pasco, Washington | 47.5 mg/L | 2.3 ppt | 🟢 Soft | reservoir |
National Benchmark
How West Richland compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ West Richland | 20.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes West Richland's Water Unique?
Local geology and source profile
West Richland, Washington, in Benton County — a Benton County city adjacent to Richland and Kennewick in the Tri-Cities area of south-central Washington — receives its water from the West Richland Water System, drawing from the Columbia River (Benton County) through the Tri-Cities distribution.
The very soft 20.5 mg/L hardness and very low TDS of 32.9 mg/L make West Richland one of the softest water supplies in this dataset — reflecting the Columbia River's very low mineral content at the Hanford reach, driven by the predominantly insoluble Cascade mountain watershed and Columbia River Basalt aquifer system that yields very little dissolved mineral content. The Columbia River at Benton County — Miocene Columbia River Basalt (very slightly calcareous — minor trace contributor), Eocene Cascade volcanic (insoluble — primary source character), and Quaternary Columbia Plateau alluvium (insoluble).
At 20.5 mg/L, West Richland's water is very soft — no scale buildup, appliances last their full service life, and no softening is needed. Water is safe for all uses. The PFAS level of 1.4 ppt is well below the EPA advisory threshold — one of the lowest readings in this dataset. Standard carbon block filter is sufficient for drinking water quality in West Richland.
Geology & Source: West Richland in Benton County draws from the West Richland Water System on the Columbia River (Benton County, south-central Washington) — the Columbia at Benton County draws from the Cascade Mountains (Eocene Clarno Formation — insoluble) and the Columbia Plateau (Miocene Columbia River Basalt — slightly calcareous) — Washington Benton County Columbia River Cascade-Basalt supply produces very soft water at 20.5 mg/L with TDS 32.9 mg/L.