East Naples Water Hardness & Quality Report (2026)
Water Hardness
6.2 grains per gallon
Source
groundwater
pH Level
7.6
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
252.5 mg/L
Est. Daily Cost
$0.28
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 East Naples, your appliances are currently losing 14% efficiency due to mineral buildup.
| Appliance | In East Naples | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.1 yrs | 8.5 yrs | -28% |
| Washing Machine | 9.7 yrs | 12 yrs | -19% |
| Water Heater | 11.3 yrs | 15 yrs | -25% |
Regional Water Comparison
How East Naples compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ East Naples, Florida | 106.5 mg/L | 5.9 ppt | 🟡 Moderately Hard | groundwater |
| Naples, Florida | 229 mg/L | 9.8 ppt | 🔴 Very Hard | groundwater |
| Golden Gate, Florida | 138 mg/L | 6.9 ppt | 🟠 Hard | groundwater |
| Marco, Florida | 269 mg/L | 11 ppt | 🔴 Very Hard | groundwater |
| Bonita Springs, Florida | 72.5 mg/L | 4.9 ppt | 🟡 Moderately Hard | groundwater |
National Benchmark
How East Naples compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ East Naples | 106.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes East Naples's Water Unique?
Local geology and source profile
East Naples, Florida, in Collier County east of Naples along the Tamiami Trail (US-41) — an unincorporated Collier County community encompassing the East Naples commercial and residential corridor between Naples proper and Golden Gate — receives its municipal water from the Collier County Water-Sewer District, which draws from the Hawthorn Group Aquifer (Lower Tamiami Formation) and the Upper Floridan Aquifer through an extensive wellfield system in Collier County. Collier County Utilities is known for operating one of Florida's most extensive reverse osmosis treatment systems for the naturally brackish Floridian aquifer supply.
The moderately soft 106.5 mg/L hardness and TDS of 252.5 mg/L reflect Collier County's effective reverse osmosis treatment reducing the naturally very hard, high-TDS Floridan and Hawthorn aquifer supply. Without treatment, Collier County's raw groundwater typically measures 400–800 mg/L hardness with TDS exceeding 1,000 mg/L in some zones — driven by the Pliocene and Miocene Hawthorn Group calcareous sands and the Eocene Avon Park Formation dolomite beneath the Big Cypress swamp. Collier County Utilities' RO plants dramatically reduce both hardness and TDS before blending with direct-finished water for distribution, producing a moderately soft finished supply.
At 106.5 mg/L, East Naples' water is moderately soft — among the better outcomes in southwest Florida thanks to Collier County's investment in RO treatment infrastructure. Scale builds gradually over months in kettles and appliances, the dishwasher performs well, and faucet aerators need periodic cleaning. Quarterly descaling of heating appliances is the standard schedule. The PFAS level of 5.9 ppt warrants a certified drinking water filter — Collier County's southwest Florida position near the Everglades corridor and the historic Homestead AFB regional drainage contributes to the South Florida PFAS baseline.
Geology & Source: East Naples in Collier County draws from the Collier County Water-Sewer District treating the Hawthorn Group Aquifer (Lower Tamiami Formation) or Upper Floridan Aquifer through reverse osmosis — the Collier County aquifer system includes Pliocene and Miocene Hawthorn Group calcareous sand and limestone — partial RO treatment of the calcareous Hawthorn aquifer produces moderately soft treated water at 106.5 mg/L in this southwest Florida community.