Davidson Water Hardness & Quality Report (2026)
Water Hardness
9.5 grains per gallon
Source
reservoir
pH Level
8.2
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
420.2 mg/L
Est. Daily Cost
$0.43
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 Davidson, your appliances are currently losing 22% efficiency due to mineral buildup.
| Appliance | In Davidson | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.2 yrs | 8.5 yrs | -51% |
| Washing Machine | 7.6 yrs | 12 yrs | -37% |
| Water Heater | 9.1 yrs | 15 yrs | -39% |
Regional Water Comparison
How Davidson compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Davidson, North Carolina | 162.5 mg/L | 8.6 ppt | 🟠 Hard | reservoir |
| Cornelius, North Carolina | 114.5 mg/L | 6.1 ppt | 🟡 Moderately Hard | reservoir |
| Mooresville, North Carolina | 119.5 mg/L | 6.4 ppt | 🟡 Moderately Hard | reservoir |
| Huntersville, North Carolina | 119 mg/L | 6.3 ppt | 🟡 Moderately Hard | reservoir |
| Kannapolis, North Carolina | 79.5 mg/L | 4.3 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Davidson compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Davidson | 162.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Davidson's Water Unique?
Local geology and source profile
Davidson, North Carolina, in Gaston County — a Gaston County town adjacent to Gastonia and Belmont on the Catawba River in southwest North Carolina — receives its water from the City of Davidson Water, drawing from Lake Norman or the Catawba River (Gaston County) through the southwest North Carolina distribution.
The hard 162.5 mg/L hardness and TDS of 420.2 mg/L reflect the southwest North Carolina Gaston County Catawba supply's hard calcareous character — the Cambrian Metavolcanic Complex slightly calcareous and Precambrian Charlotte Belt gneiss insoluble produce hard water in the Catawba valley communities (compare Gaffney SC: 56.5/84.9 in Cherokee County SC softer from the Blue Ridge Precambrian insoluble supply; Davidson harder from the Catawba-Gaston County Cambrian metavolcanic calcareous draw). The Catawba River at Gaston County — Cambrian Metavolcanic Complex (slightly calcareous — primary hardness contributor), Precambrian Charlotte Belt gneiss (insoluble — primary dilutant), and Quaternary Catawba alluvium (calcareous — TDS contributor).
At 162.5 mg/L with TDS 420, Davidson's water is hard. A water softener is recommended to prevent scale buildup. A reverse osmosis system is advisable for drinking water. The PFAS level of 8.6 ppt warrants a certified drinking water filter — the Gaston County southwest North Carolina industrial and textile corridor contribute to Davidson's elevated readings.
Geology & Source: Davidson in Gaston County is served by City of Davidson Water drawing from Lake Norman — the Catawba River watershed drains Cambrian Metavolcanic Complex (slightly calcareous) and Precambrian Charlotte Belt gneiss (insoluble) — NC Gaston County Catawba River Cambrian metavolcanic supply produces hard water at 162.5 mg/L with TDS 420.2 mg/L.