Tucson Estates Water Hardness & Quality Report (2026)
Water Hardness
15 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
625.5 mg/L
Est. Daily Cost
$0.68
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 Tucson Estates, your appliances are currently losing 34% efficiency due to mineral buildup.
| Appliance | In Tucson Estates | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 4.1 yrs | 12 yrs | -66% |
| Water Heater | 5.3 yrs | 15 yrs | -65% |
Regional Water Comparison
How Tucson Estates compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Tucson Estates, Arizona | 256.5 mg/L | 3.6 ppt | 🔴 Very Hard | mixed |
| Drexel Heights, Arizona | 339 mg/L | 4.6 ppt | 🔴 Very Hard | mixed |
| Flowing Wells, Arizona | 236.5 mg/L | 3.4 ppt | 🔴 Very Hard | mixed |
| Casas Adobes, Arizona | 418.5 mg/L | 5.6 ppt | 🔴 Very Hard | mixed |
| Tucson, Arizona | 255.5 mg/L | 3.6 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Tucson Estates compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Tucson Estates | 256.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Tucson Estates's Water Unique?
Local geology and source profile
Tucson Estates, Arizona, in Pima County — a Pima County unincorporated community adjacent to Tucson and Marana in south-central Arizona — receives its water from the Tucson Water, drawing from the Central Arizona Project (Pima County) through the south-central Arizona distribution.
The very hard 256.5 mg/L hardness and TDS of 625.5 mg/L reflect the south-central Arizona Pima County Tucson basin supply's very hard calcareous character — the Permian Kaibab Limestone highly calcareous and Precambrian Pinal Schist insoluble produce very hard water throughout the Tucson metro communities (compare Tucson AZ: 252/617 comparable in the same Pima County supply; Tucson Estates essentially identical). The Tucson Water-CAP system at Pima County — Permian Kaibab Limestone (highly calcareous — primary hardness contributor), Precambrian Pinal Schist (insoluble — dilutant), and desert evaporative concentration (calcareous — TDS contributor).
At 256.5 mg/L with TDS 626, Tucson Estates' water is very hard. A water softener is strongly recommended to prevent rapid scale buildup. A reverse osmosis system is advisable for drinking water. The PFAS level of 3.6 ppt warrants a certified drinking water filter — the Pima County south-central Arizona urban corridor contribute to Tucson Estates' readings.
Geology & Source: Tucson Estates in Pima County is served by Tucson Water drawing from the Central Arizona Project — the Pima County basin drains Precambrian Pinal Schist (insoluble) and Permian Kaibab Limestone (highly calcareous) — AZ Pima County CAP-groundwater Permian calcareous supply produces very hard water at 256.5 mg/L with TDS 625.5 mg/L.