Peachtree Corners Water Hardness & Quality Report (2026)
Water Hardness
7.9 grains per gallon
Source
reservoir
pH Level
8
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
334.6 mg/L
Est. Daily Cost
$0.36
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 Peachtree Corners, your appliances are currently losing 18% efficiency due to mineral buildup.
| Appliance | In Peachtree Corners | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.1 yrs | 8.5 yrs | -40% |
| Washing Machine | 8.6 yrs | 12 yrs | -28% |
| Water Heater | 10.2 yrs | 15 yrs | -32% |
Regional Water Comparison
How Peachtree Corners compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Peachtree Corners, Georgia | 135 mg/L | 8.4 ppt | 🟠 Hard | reservoir |
| Norcross, Georgia | 146.5 mg/L | 9.2 ppt | 🟠 Hard | reservoir |
| Johns Creek, Georgia | 84.5 mg/L | 4.6 ppt | 🟡 Moderately Hard | reservoir |
| Duluth, Georgia | 147.5 mg/L | 9.3 ppt | 🟠 Hard | reservoir |
| Chamblee, Georgia | 150 mg/L | 9.5 ppt | 🟠 Hard | reservoir |
National Benchmark
How Peachtree Corners compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Peachtree Corners | 135 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Peachtree Corners's Water Unique?
Local geology and source profile
Peachtree Corners, Georgia, in Gwinnett County — Georgia's first 'Technology City' (Peachtree Corners incorporated in 2012 as a city to attract tech companies to the Technology Park Atlanta and Forum on Peachtree Parkway corridors), a major northeast Atlanta suburban tech and corporate community, home of the Curiosity Lab at Peachtree Corners (a 5G 'smart city' living laboratory and autonomous vehicle testing corridor), and a diverse Gwinnett County community with significant Chinese-American, Korean-American, and Indian-American tech industry populations — draws its municipal water supply from the Chattahoochee River via Gwinnett County Department of Water Resources. Water hardness in Peachtree Corners measures 135 mg/L — classified as moderately hard.
Peachtree Corners' moderate hardness reflects the Gwinnett County Chattahoochee River watershed's Georgia Piedmont geology. The Chattahoochee River at the northeast Atlanta watershed zone drains: the Georgia Blue Ridge (Precambrian crystalline gneiss and schist of the north Georgia mountains — calcareous-poor); the Georgia Piedmont Province (Precambrian–Paleozoic calcareous-moderate crystalline gneiss and amphibolite — the northeast Atlanta Piedmont zone, containing some calcareous amphibolite and calcareous metasedimentary units). Gwinnett County's treatment plant and the calcareous-moderate Piedmont geology produce the moderate 135 mg/L.
At 135 mg/L, Peachtree Corners residents encounter moderate scale accumulation. Monthly cleaning with citric acid solution is recommended. Gwinnett County Department of Water Resources consistently delivers water meeting all Georgia EPD and EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the Chattahoochee River (Gwinnett County Department of Water Resources) via the Gwinnett County Peachtree Corners zone — the Gwinnett County northeast Atlanta Piedmont Chattahoochee watershed (Precambrian–Paleozoic calcareous-moderate Piedmont crystalline terrain of the Georgia Piedmont); moderately hard supply at 135 mg/L in Gwinnett County.