Florence Water Hardness & Quality Report (2026)
Water Hardness
13.6 grains per gallon
Source
mixed
pH Level
8.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
545.8 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 Florence, your appliances are currently losing 31% efficiency due to mineral buildup.
| Appliance | In Florence | 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 Florence compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Florence, Arizona | 232.5 mg/L | 3.4 ppt | 🔴 Very Hard | mixed |
| San Tan Valley, Arizona | 238.5 mg/L | 3.4 ppt | 🔴 Very Hard | mixed |
| Eloy, Arizona | 141 mg/L | 2.3 ppt | 🟠 Hard | mixed |
| Queen Creek, Arizona | 208.5 mg/L | 3.1 ppt | 🔴 Very Hard | mixed |
| Casa Grande, Arizona | 415.5 mg/L | 5.5 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Florence compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Florence | 232.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Florence's Water Unique?
Local geology and source profile
Florence, Arizona, the Pinal County seat — a major south Arizona desert corrections and agricultural city (Florence is the Pinal County seat — one of the most historically significant south Arizona communities; Florence is home to numerous state prison facilities (Florence is one of the most important state correctional communities in Arizona, housing multiple Arizona Department of Corrections facilities including the state's death row and the infamous Arizona State Prison Complex-Florence) and is one of the largest concentrations of prison infrastructure in the United States), a diverse Pinal County community with a significant Hispanic-American, corrections-industry, and agricultural worker population, home of the historic Florence Town Hall (one of Arizona's oldest continuously operating government buildings, dating to 1891), adjacent to the Gila River reservation (one of the most important Akimel O'odham tribal lands in Arizona), and a desert community in the hot Sonoran Desert basin between Phoenix and Tucson — draws its municipal water supply from the San Pedro River Valley alluvial aquifer via the Town of Florence Water Division. Water hardness in Florence measures 232.5 mg/L — classified as very hard.
Florence's very hard supply reflects the south Arizona desert basin's extremely calcareous geology. The San Pedro Valley alluvial aquifer at Florence–Pinal County draws from the Quaternary calcareous alluvium and Tertiary basin-fill volcanics (highly calcareous evaporite and carbonate). Town of Florence applies limited softening, producing the very hard 232.5 mg/L.
At 232.5 mg/L, Florence residents face significant hard water challenges. Regular water softeners and descaling are strongly recommended. Town of Florence Water Division consistently delivers water meeting all Arizona ADEQ and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the San Pedro River Valley alluvial aquifer via the Town of Florence Water Division — the Pinal County south Arizona Santa Cruz Valley Florence corridor (Quaternary calcareous-high San Pedro River alluvium and Tertiary calcareous volcanic and sedimentary basin fill — the highly calcareous southeast Arizona desert basin alluvium; limited softening); very hard supply at 232.5 mg/L in Pinal County.