Brunswick Water Hardness & Quality Report (2026)
Water Hardness
5.1 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
140.9 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 Brunswick, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Brunswick | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.7 yrs | 8.5 yrs | -21% |
| Washing Machine | 10.3 yrs | 12 yrs | -14% |
| Water Heater | 12.1 yrs | 15 yrs | -19% |
Regional Water Comparison
How Brunswick compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Brunswick, Georgia | 88 mg/L | 4 ppt | 🟡 Moderately Hard | reservoir |
| Saint Simon Mills, Georgia | 84.5 mg/L | 3.8 ppt | 🟡 Moderately Hard | reservoir |
| Saint Simons Island, Georgia | 85 mg/L | 3.8 ppt | 🟡 Moderately Hard | reservoir |
| Kingsland, Georgia | 123.5 mg/L | 6.6 ppt | 🟠 Hard | reservoir |
| St. Marys, Georgia | 159 mg/L | 9.2 ppt | 🟠 Hard | reservoir |
National Benchmark
How Brunswick compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Brunswick | 88 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Brunswick's Water Unique?
Local geology and source profile
Brunswick, Georgia, in Glynn County — the Glynn County seat adjacent to St. Simons Island and Jekyll Island on the Georgia Golden Isles coast — receives its municipal water from Brunswick-Glynn County Regional Water and Sewer Commission, drawing from the Altamaha River (upstream intakes, Glynn County) through the Brunswick water treatment plant.
The moderately soft 88 mg/L hardness and TDS of 140.9 mg/L reflect the southeast Georgia Altamaha River supply's predominantly insoluble Piedmont character. The Altamaha River at Glynn County drains the Georgia Piedmont — Precambrian Columbus Granite (mostly insoluble), and the Georgia Coastal Plain — Cretaceous Tuscaloosa Formation (siliceous sand — low solubility). The predominantly siliceous Piedmont granite and Cretaceous siliceous Coastal Plain produces the moderately soft southeast Georgia supply.
At 88 mg/L, Brunswick's water is moderately soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 4.0 ppt warrants a certified drinking water filter — Kings Bay Naval Submarine Base (Camden County — AFFF, adjacent to the Altamaha-St. Marys River corridor) and the southeast Georgia coast PFAS background contribute to Brunswick's readings.
Geology & Source: Brunswick in Glynn County draws from the Brunswick-Glynn County Water on the Altamaha River (Glynn County, southeast Georgia coast) — the Altamaha drains the Georgia Piedmont (Precambrian Columbus Granite — mostly insoluble) and the Georgia Coastal Plain (Cretaceous Tuscaloosa siliceous) — Georgia Glynn County Altamaha River Piedmont-Coastal Plain watershed produces moderately soft water at 88 mg/L with TDS 140.9 mg/L in this Glynn County Georgia city.