Upper Grand Lagoon Water Hardness & Quality Report (2026)
Water Hardness
15.7 grains per gallon
Source
groundwater
pH Level
8.5
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
836.8 mg/L
Est. Daily Cost
$0.72
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 Upper Grand Lagoon, your appliances are currently losing 36% efficiency due to mineral buildup.
| Appliance | In Upper Grand Lagoon | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3.7 yrs | 12 yrs | -69% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How Upper Grand Lagoon compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Upper Grand Lagoon, Florida | 268.5 mg/L | 11 ppt | 🔴 Very Hard | groundwater |
| Panama City Beach, Florida | 183.5 mg/L | 8.3 ppt | 🔴 Very Hard | groundwater |
| Panama City, Florida | 183.5 mg/L | 8.3 ppt | 🔴 Very Hard | groundwater |
| Lynn Haven, Florida | 235.5 mg/L | 10 ppt | 🔴 Very Hard | groundwater |
| Callaway, Florida | 184 mg/L | 8.3 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Upper Grand Lagoon compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Upper Grand Lagoon | 268.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Upper Grand Lagoon's Water Unique?
Local geology and source profile
Upper Grand Lagoon, Florida, in Bay County — an unincorporated Bay County community adjacent to Panama City Beach and Callaway on the northwest Florida Panhandle Gulf Coast — receives its water from Bay County Utilities, drawing from the Floridan Aquifer (Bay County) through the northwest Florida Panhandle distribution.
The very hard 268.5 mg/L hardness and very high TDS of 836.8 mg/L reflect the northwest Florida Panhandle Bay County Floridan Aquifer's very hard evaporitic character — one of the harder Floridan Aquifer draws in northwest Florida, driven by the Bay County deep Floridan with high evaporitic sulfate content from the Eocene Avon Park Formation at depth. The Floridan Aquifer at Bay County — Eocene Ocala Limestone (calcareous — primary hardness contributor), Eocene Avon Park Formation (calcareous and evaporitic — primary TDS contributor), and Oligocene Suwannee Limestone (calcareous — secondary contributor).
At 268.5 mg/L with TDS 836, Upper Grand Lagoon's water is very hard. A water softener is strongly recommended and a reverse osmosis system is essential for drinking water. The PFAS level of 11.0 ppt warrants a certified reverse osmosis drinking water filter — Tyndall Air Force Base (Bay County — AFFF, directly adjacent) contributes significantly to Upper Grand Lagoon's elevated readings.
Geology & Source: Upper Grand Lagoon in Bay County draws from the Bay County Utilities on the Floridan Aquifer (Bay County, northwest Florida Panhandle) — the Floridan Aquifer at Bay County is developed in Eocene Ocala Limestone (calcareous) and Eocene Avon Park Formation (calcareous-evaporitic) at depth — Florida Bay County Floridan Aquifer Eocene calcareous-evaporitic limestone produces very hard water at 268.5 mg/L with TDS 836.8 mg/L.