Dentsville Water Hardness & Quality Report (2026)
Water Hardness
8.5 grains per gallon
Source
reservoir
pH Level
8.1
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
374 mg/L
Est. Daily Cost
$0.39
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 Dentsville, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Dentsville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.8 yrs | 8.5 yrs | -44% |
| Washing Machine | 8.2 yrs | 12 yrs | -32% |
| Water Heater | 9.8 yrs | 15 yrs | -35% |
Regional Water Comparison
How Dentsville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Dentsville, South Carolina | 145 mg/L | 8 ppt | 🟠 Hard | reservoir |
| Columbia, South Carolina | 98.5 mg/L | 5.5 ppt | 🟡 Moderately Hard | reservoir |
| West Columbia, South Carolina | 75 mg/L | 4.2 ppt | 🟡 Moderately Hard | reservoir |
| Saint Andrews, South Carolina | 110 mg/L | 6.1 ppt | 🟡 Moderately Hard | reservoir |
| Cayce, South Carolina | 140.5 mg/L | 7.8 ppt | 🟠 Hard | reservoir |
National Benchmark
How Dentsville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Dentsville | 145 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Dentsville's Water Unique?
Local geology and source profile
Dentsville, South Carolina, in Richland County — an unincorporated Richland County community adjacent to Columbia and Forest Acres in the central South Carolina Midlands — receives its water from the Columbia Waterworks, drawing from Lake Murray (Richland County) through the central South Carolina distribution.
The moderately hard 145 mg/L hardness and TDS of 374 mg/L (TDS elevated relative to hardness — reflecting the Lake Murray watershed's Coastal Plain sediment dissolution and organic input at the Piedmont-Coastal Plain boundary) are harder than other SC Upstate reservoir communities (Gantt: 58 mg/L) due to the Midlands Richland County watershed's mixed Precambrian metavolcanic and Coastal Plain sedimentary geology. The Lake Murray watershed at Richland County drains — Precambrian Carolina Terrane Metavolcanics (slightly calcareous — primary hardness contributor), Cretaceous Coastal Plain formations (calcareous — secondary contributor), and Quaternary alluvial deposits.
At 145 mg/L, Dentsville'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 8.0 ppt warrants a certified drinking water filter — Fort Jackson (Richland County — AFFF) and the Columbia metro industrial corridor contribute significantly to Dentsville's elevated readings.
Geology & Source: Dentsville in Richland County draws from the Columbia Waterworks on Lake Murray (Richland County, central South Carolina Midlands) — Lake Murray at Richland County drains the Piedmont (Precambrian Carolina Terrane metavolcanics — slightly calcareous) and the Coastal Plain margin — South Carolina Richland County Lake Murray Precambrian metavolcanic watershed produces moderately hard water at 145 mg/L with TDS 374 mg/L.