Snellville Water Hardness & Quality Report (2026)
Water Hardness
4.3 grains per gallon
Source
reservoir
pH Level
7.4
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
112.3 mg/L
Est. Daily Cost
$0.19
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 Snellville, your appliances are currently losing 10% efficiency due to mineral buildup.
| Appliance | In Snellville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.2 yrs | 8.5 yrs | -15% |
| Washing Machine | 10.9 yrs | 12 yrs | -9% |
| Water Heater | 12.7 yrs | 15 yrs | -15% |
Regional Water Comparison
How Snellville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Snellville, Georgia | 73 mg/L | 3.7 ppt | 🟡 Moderately Hard | reservoir |
| Lawrenceville, Georgia | 148 mg/L | 9.3 ppt | 🟠 Hard | reservoir |
| Lilburn, Georgia | 84.5 mg/L | 4.6 ppt | 🟡 Moderately Hard | reservoir |
| Redan, Georgia | 150.5 mg/L | 9.5 ppt | 🟠 Hard | reservoir |
| Stonecrest, Georgia | 117.5 mg/L | 7 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Snellville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Snellville | 73 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Snellville's Water Unique?
Local geology and source profile
Snellville, Georgia, in Gwinnett County — a Gwinnett County city adjacent to Lawrenceville and Lilburn in the eastern Atlanta suburban corridor — receives its municipal water from Gwinnett County Water Resources, which draws from Lake Lanier (Chattahoochee River, in the Blue Ridge foothills) or the Yellow River reservoir system in Gwinnett County.
The moderately soft 73 mg/L hardness and TDS of 112.3 mg/L reflect the Gwinnett County-Lake Lanier supply's Georgia Piedmont and Blue Ridge geology. Lake Lanier collects the Chattahoochee River (headwaters in the Blue Ridge Mountains of northern Georgia — Precambrian and Cambrian granitoid, Henderson Gneiss, and Tugaloo Terrane metamorphic rocks) and the Yellow River (Gwinnett County piedmont — Precambrian and Cambrian granitic gneiss, Piedmont crystalline). These crystalline Blue Ridge and Piedmont rocks produce soft to moderately soft water throughout the Atlanta metropolitan service area.
At 73 mg/L, Snellville's water is moderately soft — comfortable for household use. Scale forms slowly, soap lathers well, and appliances operate efficiently. Semi-annual descaling is adequate. The PFAS level of 3.7 ppt is relatively low for the Atlanta suburbs — the Gwinnett County-Lake Lanier protected watershed, relatively limited direct military-industrial PFAS in the upper Chattahoochee watershed, and Gwinnett County Water's modern treatment infrastructure contribute to the moderate PFAS reading.
Geology & Source: Snellville in Gwinnett County draws from the Gwinnett County Water Resources on the Lake Lanier (Chattahoochee River, Blue Ridge Highlands) or local Yellow River reservoirs — the Chattahoochee drains the Blue Ridge (Precambrian and Cambrian crystalline granite and gneiss) — Georgia Blue Ridge crystalline watershed drainage produces moderately soft water at 73 mg/L with TDS 112 mg/L in this Gwinnett County Georgia city.