West Columbia Water Hardness & Quality Report (2026)
Water Hardness
4.4 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
129.5 mg/L
Est. Daily Cost
$0.20
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 Columbia, your appliances are currently losing 10% efficiency due to mineral buildup.
| Appliance | In West Columbia | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.1 yrs | 8.5 yrs | -16% |
| Washing Machine | 10.8 yrs | 12 yrs | -10% |
| Water Heater | 12.6 yrs | 15 yrs | -16% |
Regional Water Comparison
How West Columbia compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ West Columbia, South Carolina | 75 mg/L | 4.2 ppt | 🟡 Moderately Hard | reservoir |
| Cayce, South Carolina | 140.5 mg/L | 7.8 ppt | 🟠 Hard | reservoir |
| Columbia, South Carolina | 98.5 mg/L | 5.5 ppt | 🟡 Moderately Hard | reservoir |
| Saint Andrews, South Carolina | 110 mg/L | 6.1 ppt | 🟡 Moderately Hard | reservoir |
| Seven Oaks, South Carolina | 74.5 mg/L | 4.2 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How West Columbia compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ West Columbia | 75 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes West Columbia's Water Unique?
Local geology and source profile
West Columbia, South Carolina, in Lexington County — a Lexington County city adjacent to Columbia and Cayce on the Congaree River (Saluda-Broad-Congaree system) in central South Carolina — receives its municipal water from Lexington County Public Works or Cayce West Columbia Water, drawing from the Saluda River (Lake Murray, Lexington County) through the central South Carolina water treatment system.
The moderately soft 75 mg/L hardness and TDS of 129.5 mg/L reflect the central South Carolina Saluda River supply's predominantly insoluble Piedmont character. The Saluda River at Lexington County drains the South Carolina Piedmont — Precambrian Chauga Schist (insoluble metamorphic), Precambrian Columbia Granite (mostly insoluble), and the Inner Coastal Plain Cretaceous Tuscaloosa Formation (siliceous). The predominantly insoluble Piedmont granite and metamorphic watershed produces the moderately soft central South Carolina supply.
At 75 mg/L, West Columbia's water is moderately 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 4.2 ppt warrants a certified drinking water filter — the Lexington County central South Carolina industrial corridor and the Saluda-Congaree PFAS background contribute to West Columbia's readings.
Geology & Source: West Columbia in Lexington County draws from the Lexington County Water on the Saluda River (Lexington County, central South Carolina) — the Saluda drains the South Carolina Piedmont (Precambrian Chauga Schist, Precambrian Columbia Granite — mostly insoluble) — South Carolina Lexington County Saluda River Piedmont watershed produces moderately soft water at 75 mg/L with TDS 129.5 mg/L in this Lexington County South Carolina city.