Saint Simon Mills Water Hardness & Quality Report (2026)
Water Hardness
4.9 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
131.1 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 Saint Simon Mills, your appliances are currently losing 11% efficiency due to mineral buildup.
| Appliance | In Saint Simon Mills | 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 Saint Simon Mills compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ 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 |
| Brunswick, Georgia | 88 mg/L | 4 ppt | 🟡 Moderately Hard | reservoir |
| St. Marys, Georgia | 159 mg/L | 9.2 ppt | 🟠 Hard | reservoir |
| Kingsland, Georgia | 123.5 mg/L | 6.6 ppt | 🟠 Hard | reservoir |
National Benchmark
How Saint Simon Mills compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Saint Simon Mills | 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 Saint Simon Mills's Water Unique?
Local geology and source profile
Saint Simon Mills, Georgia, in Glynn County — a Glynn County community adjacent to Brunswick and St. Simons Island on the southeast Georgia Coastal Plain — receives its water from Glynn County Water and Sewer, drawing from the Floridan Aquifer (Glynn County) through the southeast Georgia distribution.
The moderately hard 84.5 mg/L hardness and TDS of 131.1 mg/L are softer than the typical Florida Floridan Aquifer communities — reflecting the Georgia coastal Glynn County Floridan Aquifer's shallower, less mineralized draw at the Georgia-Florida coast where the aquifer is less deeply confined and more diluted by modern recharge. The Floridan Aquifer at Glynn County — Eocene Ocala Limestone (calcareous — primary hardness contributor), Eocene Avon Park Formation (calcareous), and Quaternary Coastal Plain sand (dilutant — surficial recharge zone).
At 84.5 mg/L, Saint Simon Mills' water is moderately hard — light scale forms slowly in appliances, dishwashers benefit from rinse aid, and faucet aerators need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 3.8 ppt is low — the Glynn County southeast Georgia coastal corridor has limited adjacent AFFF military PFAS sources relative to the north Georgia communities.
Geology & Source: Saint Simon Mills in Glynn County draws from the Glynn County Water and Sewer on the Floridan Aquifer (Glynn County, southeast Georgia Coastal Plain) — the Floridan Aquifer at Glynn County is developed in Eocene Ocala Limestone (calcareous) and Eocene Avon Park Formation (calcareous) — Georgia Glynn County Floridan Aquifer Eocene calcareous limestone produces moderately hard water at 84.5 mg/L with TDS 131.1 mg/L.