Lilburn Water Hardness & Quality Report (2026)
Water Hardness
4.9 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
144.6 mg/L
Est. Daily Cost
$0.23
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 Lilburn, your appliances are currently losing 11% efficiency due to mineral buildup.
| Appliance | In Lilburn | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 10.5 yrs | 12 yrs | -13% |
| Water Heater | 12.2 yrs | 15 yrs | -19% |
Regional Water Comparison
How Lilburn compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lilburn, Georgia | 84.5 mg/L | 4.6 ppt | 🟡 Moderately Hard | reservoir |
| Tucker, Georgia | 111 mg/L | 6.5 ppt | 🟡 Moderately Hard | reservoir |
| Norcross, Georgia | 146.5 mg/L | 9.2 ppt | 🟠 Hard | reservoir |
| Peachtree Corners, Georgia | 135 mg/L | 8.4 ppt | 🟠 Hard | reservoir |
| Duluth, Georgia | 147.5 mg/L | 9.3 ppt | 🟠 Hard | reservoir |
National Benchmark
How Lilburn compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lilburn | 84.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Lilburn's Water Unique?
Local geology and source profile
Lilburn, Georgia, in Gwinnett County — a Gwinnett County city adjacent to Lawrenceville and Stone Mountain in the northeast Atlanta metro — receives its water from the Gwinnett County Water, drawing from Lake Sidney Lanier or the Chattahoochee River (Gwinnett County) through the northeast Atlanta metro distribution.
The moderately soft 84.5 mg/L hardness and TDS of 144.6 mg/L reflect the northeast Atlanta metro Gwinnett County Piedmont supply's soft character — consistent with the northeast Georgia Piedmont communities drawing from the Lake Lanier-Chattahoochee system (compare Grovetown GA: 102.5/206 in Augusta County harder; Dallas GA: 95.5/179 in Paulding County comparable; Lilburn comparable softness on the northeast Georgia Piedmont supply). The Lanier-Chattahoochee watershed at Gwinnett County — Precambrian Austell Gneiss (insoluble — primary dilutant), Cambrian Shady Dolomite (slightly calcareous — hardness contributor), and Quaternary Piedmont alluvium (slightly calcareous — minor TDS).
At 84.5 mg/L, Lilburn's water is moderately soft — light scale forms slowly in appliances, dishwashers remain efficient, and no softening is needed. Annual descaling is appropriate. The PFAS level of 4.6 ppt warrants a certified drinking water filter — the Gwinnett County northeast Atlanta industrial corridor contribute to Lilburn's readings.
Geology & Source: Lilburn in Gwinnett County draws from the Gwinnett County Water on Lake Sidney Lanier or Chattahoochee River (Gwinnett County, northeast Atlanta metro, Georgia) — the Chattahoochee-Lanier watershed drains the Georgia Blue Ridge (Precambrian Austell Gneiss — insoluble) and Cambrian Shady Dolomite (slightly calcareous) — Georgia Gwinnett County Lanier-Chattahoochee Precambrian-Cambrian Piedmont supply produces moderately soft water at 84.5 mg/L with TDS 144.6 mg/L.