Holly Springs Water Hardness & Quality Report (2026)
Water Hardness
5.8 grains per gallon
Source
reservoir
pH Level
7.6
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
190.7 mg/L
Est. Daily Cost
$0.26
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 Holly Springs, your appliances are currently losing 13% efficiency due to mineral buildup.
| Appliance | In Holly Springs | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.3 yrs | 8.5 yrs | -26% |
| Washing Machine | 10 yrs | 12 yrs | -17% |
| Water Heater | 11.7 yrs | 15 yrs | -22% |
Regional Water Comparison
How Holly Springs compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Holly Springs, Georgia | 98.5 mg/L | 5.7 ppt | 🟡 Moderately Hard | reservoir |
| Canton, Georgia | 118 mg/L | 7.2 ppt | 🟡 Moderately Hard | reservoir |
| Woodstock, Georgia | 94.5 mg/L | 5.4 ppt | 🟡 Moderately Hard | reservoir |
| Kennesaw, Georgia | 101 mg/L | 5.8 ppt | 🟡 Moderately Hard | reservoir |
| Milton, Georgia | 84 mg/L | 4.6 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Holly Springs compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Holly Springs | 98.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Holly Springs's Water Unique?
Local geology and source profile
Holly Springs, Georgia, in Cherokee County — a Cherokee County city adjacent to Canton and Woodstock on the Etowah River in north Georgia — receives its water from the Cherokee County Water and Sewerage Authority, drawing from Lake Allatoona through the north Georgia distribution.
The moderately hard 98.5 mg/L hardness and TDS of 190.7 mg/L reflect the Cherokee County supply's moderate Piedmont character — the Cambrian Conasauga Group contributes slightly calcareous mineral content from its limestone and shale in the Georgia Valley and Ridge, while the Precambrian Blue Ridge Crystalline provides insoluble metamorphic dilution (compare Canton GA: 95/183 in Cherokee County comparable; Woodstock GA: 101/198 in Cherokee County comparable; Holly Springs consistent moderate from the same Cherokee County Lake Allatoona Cambrian supply). The Etowah watershed — Cambrian Conasauga Group (slightly calcareous — primary hardness contributor), Precambrian Blue Ridge Crystalline (insoluble — primary dilutant), and Quaternary Etowah River alluvium (slightly calcareous — minor TDS).
At 98.5 mg/L with TDS 191, Holly Springs' water is moderately hard — mild scale buildup. Semi-annual descaling is appropriate. The PFAS level of 5.7 ppt warrants a certified drinking water filter. Review the Cherokee County Water and Sewerage Authority's annual water quality report.
Geology & Source: Holly Springs in Cherokee County draws from the Cherokee County Water on the Lake Allatoona supply (Cherokee County, north Georgia) — the Etowah watershed draws from Cambrian Conasauga Group (slightly calcareous) and Precambrian Blue Ridge Crystalline (insoluble) — Georgia Cherokee County Lake Allatoona Cambrian supply produces moderately hard water at 98.5 mg/L with TDS 190.7 mg/L.