Fort Pierce Water Hardness & Quality Report (2026)
Water Hardness
17.9 grains per gallon
Source
groundwater
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
1011.6 mg/L
Est. Daily Cost
$0.82
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 Fort Pierce, your appliances are currently losing 41% efficiency due to mineral buildup.
| Appliance | In Fort Pierce | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How Fort Pierce compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Fort Pierce, Florida | 307 mg/L | 12.2 ppt | 🔴 Very Hard | groundwater |
| Florida Ridge, Florida | 277.5 mg/L | 11.3 ppt | 🔴 Very Hard | groundwater |
| Port Saint Lucie, Florida | 72.5 mg/L | 4.8 ppt | 🟡 Moderately Hard | groundwater |
| Vero Beach South, Florida | 319 mg/L | 12.6 ppt | 🔴 Very Hard | groundwater |
| Vero Beach, Florida | 281.5 mg/L | 11.4 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Fort Pierce compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Fort Pierce | 307 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Fort Pierce's Water Unique?
Local geology and source profile
Fort Pierce, Florida, the St. Lucie County seat on the Treasure Coast of Florida — the 'Sunrise City,' a major Treasure Coast commercial, healthcare, and cultural hub, home of Indian River State College (IRSC, one of Florida's largest state colleges), the National Navy UDT–SEAL Museum (the only museum dedicated to Navy SEAL history), and a historic fishing and citrus community on the Indian River Lagoon — draws its municipal water supply from the Upper Floridan Aquifer via the City of Fort Pierce Water Division. Water hardness in Fort Pierce measures 307 mg/L — classified as very hard.
Fort Pierce's very hard supply reflects the St. Lucie County Upper Floridan Aquifer's calcareous limestone geology. The Upper Floridan Aquifer at Fort Pierce draws from: the Eocene Avon Park Formation (highly calcareous dolomitic limestone — the deepest tapped Upper Floridan unit, extremely calcareous); the Eocene Ocala Limestone (highly calcareous pure limestone — the principal karst limestone of the Florida Platform, very soluble); and the Oligocene Suwannee Limestone (calcareous limestone of the upper Floridan Aquifer). The Treasure Coast Floridan Aquifer is particularly calcareous because the St. Lucie County zone is above the Ocala High (a structural arch where the calcareous Eocene limestone subcrop is near-surface), producing the very hard 307 mg/L at Fort Pierce.
At 307 mg/L, Fort Pierce residents face severe hard water challenges. Scale deposits form very rapidly on all fixtures and appliances — weekly descaling and appliance protection measures are strongly recommended. City of Fort Pierce Water Division consistently delivers water meeting all Florida DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Floridan Aquifer System (Upper Floridan Aquifer) via the City of Fort Pierce Water Division and the St. Lucie County Utilities — the St. Lucie County Treasure Coast Florida (Eocene–Oligocene Avon Park Formation and Ocala Limestone calcareous limestone karst); very hard supply at 307 mg/L — reflecting the St. Lucie County Floridan Aquifer calcareous limestone dissolution.