Kissimmee Water Hardness & Quality Report (2026)
Water Hardness
16.8 grains per gallon
Source
groundwater
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
919.6 mg/L
Est. Daily Cost
$0.77
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 Kissimmee, your appliances are currently losing 38% efficiency due to mineral buildup.
| Appliance | In Kissimmee | 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 Kissimmee compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Kissimmee, Florida | 287 mg/L | 11.6 ppt | 🔴 Very Hard | groundwater |
| Hunters Creek, Florida | 129.5 mg/L | 6.6 ppt | 🟠 Hard | groundwater |
| Buenaventura Lakes, Florida | 147 mg/L | 7.2 ppt | 🟠 Hard | groundwater |
| Southchase, Florida | 258.5 mg/L | 10.7 ppt | 🔴 Very Hard | groundwater |
| Meadow Woods, Florida | 323 mg/L | 12.7 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Kissimmee compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Kissimmee | 287 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Kissimmee's Water Unique?
Local geology and source profile
Kissimmee, Florida, the Osceola County seat in central Florida south of Orlando — gateway to Walt Disney World, Sea World, and the Orlando tourism corridor — draws its municipal water supply from the Upper Floridan Aquifer via the City of Kissimmee Utilities Water Division, pumping from Osceola County Floridan Aquifer wells accessing the Eocene Avon Park Formation (dolomitic limestone) and the Ocala Limestone Group beneath the Lake Wales Ridge terrain of central Osceola County. Water hardness in Kissimmee reaches 287 mg/L — classified as very hard.
Kissimmee's very hard supply reflects the central Florida Floridan Aquifer's highest-hardness zone. The Avon Park Formation (Eocene — dolomitic limestone) is the most reactive unit of the Upper Floridan Aquifer — the dolomite ($CaMg(CO_3)_2$) actively dissolves calcium and magnesium under central Florida's warm, humid, sub-tropical climate. The Osceola County area sits over the Lake Wales Ridge — a central Florida topographic high formed by ancient coastal dunes — where the Floridan Aquifer is highly active with karst dissolution and sinkhole formation. The active dissolution of the Avon Park dolomite produces the 287 mg/L very hard supply in Kissimmee, consistent with nearby Orlando (similar hardness) and Lakeland in the same central Florida Floridan zone.
At 287 mg/L, Kissimmee residents face significant hard water challenges. Scale deposits form rapidly on all fixtures, shower glass, and tile — monthly descaling with citric acid solution is essential maintenance. Dishwashers require rinse-aid. City of Kissimmee Utilities consistently delivers water meeting all Florida DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Upper Floridan Aquifer via the City of Kissimmee Utilities Water Division — the Eocene Avon Park Formation dolomite and Lake Wales Ridge Floridan Aquifer of Osceola County; very hard supply at 287 mg/L — reflecting the central Florida Osceola County Floridan Aquifer's high dolomite dissolution character.