Carrollwood Water Hardness & Quality Report (2026)
Water Hardness
13.6 grains per gallon
Source
groundwater
pH Level
8.4
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
684.3 mg/L
Est. Daily Cost
$0.62
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 Carrollwood, your appliances are currently losing 31% efficiency due to mineral buildup.
| Appliance | In Carrollwood | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.9 yrs | 8.5 yrs | -78% |
| Washing Machine | 5 yrs | 12 yrs | -58% |
| Water Heater | 6.3 yrs | 15 yrs | -58% |
Regional Water Comparison
How Carrollwood compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Carrollwood, Florida | 232 mg/L | 9.9 ppt | 🔴 Very Hard | groundwater |
| Lake Magdalene, Florida | 320.5 mg/L | 12.6 ppt | 🔴 Very Hard | groundwater |
| Carrollwood Village, Florida | 232.5 mg/L | 9.9 ppt | 🔴 Very Hard | groundwater |
| Egypt Lake-Leto, Florida | 132 mg/L | 6.7 ppt | 🟠 Hard | groundwater |
| Northdale, Florida | 187.5 mg/L | 8.5 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Carrollwood compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Carrollwood | 232 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Carrollwood's Water Unique?
Local geology and source profile
Carrollwood, Florida, an unincorporated community in Hillsborough County — a major northwest Tampa suburban community (Carrollwood is a significant unincorporated Hillsborough County community in the northwest Tampa corridor — one of the most established upper-middle-class residential suburbs of Tampa, with large single-family homes, golf courses, and a strong suburban residential character), home of Carrollwood Village (a planned residential community in Carrollwood — one of the large planned golf and residential developments in the northwest Hillsborough County Tampa suburban area), a diverse Hillsborough County community with a significant medical and professional population (the Carrollwood area is adjacent to several major Tampa hospitals and medical facilities), and adjacent to the Veterans Expressway northwest Tampa corridor — draws its municipal water supply from the Upper Floridan Aquifer via Hillsborough County Water Resources. Water hardness in Carrollwood measures 232 mg/L — classified as very hard.
Carrollwood's very hard supply reflects the central Florida Upper Floridan Aquifer's highly calcareous limestone geology. The Upper Floridan Aquifer at Carrollwood–Hillsborough County draws from the Eocene Ocala Limestone and Oligocene Suwannee Limestone (highly calcareous marine carbonate of the Florida Peninsula — among the most calcareous aquifer formations in the United States). Hillsborough County Water Resources' limited treatment produces the very hard 232 mg/L.
At 232 mg/L, Carrollwood residents face significant hard water challenges. Regular descaling and water softeners are strongly recommended. Hillsborough County Water Resources consistently delivers water meeting all Florida DEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Upper Floridan Aquifer (Ocala Limestone) via the Hillsborough County Water Resources or Tampa Bay Water — the Hillsborough County northwest Tampa suburban Carrollwood corridor (Eocene calcareous Ocala Limestone and Oligocene calcareous Suwannee Limestone — the highly calcareous central Florida Upper Floridan Aquifer; northwest Hillsborough County groundwater supply); very hard supply at 232 mg/L in Hillsborough County.