Saint George Water Hardness & Quality Report (2026)
Water Hardness
19.7 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
953.9 mg/L
Est. Daily Cost
$0.90
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 Saint George, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Saint George | 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 Saint George compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Saint George, Utah | 337.5 mg/L | 4 ppt | 🔴 Very Hard | mixed |
| Washington, Utah | 370.5 mg/L | 4.5 ppt | 🔴 Very Hard | mixed |
| Hurricane, Utah | 318.5 mg/L | 3.7 ppt | 🔴 Very Hard | mixed |
| Mesquite, Nevada | 438.5 mg/L | 4.6 ppt | 🔴 Very Hard | groundwater |
| Cedar City, Utah | 387.5 mg/L | 4.9 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Saint George compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Saint George | 337.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Saint George's Water Unique?
Local geology and source profile
St. George, Utah, the Washington County seat in southwest Utah's 'Dixie' region — the fastest-growing metropolitan area in the United States for much of the 2010s-2020s — draws its municipal water supply through the Washington County Water Conservancy District (WCWCD) and the City of St. George Water Services Division, sourcing from the Virgin River watershed (treated at the Little Valley Water Treatment Plant), local Virgin River Alluvial and Navajo Sandstone aquifer wells, and Colorado River Basin Project imports. Water hardness in St. George reaches 337.5 mg/L — classified as very hard, among the hardest municipal supplies in Utah.
St. George's extreme hardness reflects southwest Utah's exceptional geology. The Virgin River at Washington County drains the Colorado Plateau's calcareous formations — the Navajo Sandstone (Jurassic — calcareous cemented quartz sandstone), the Permian Kaibab Limestone (highly reactive carbonate), the Triassic Moenkopi Formation (red siltstone and limestone), and the Permian Toroweap Formation (gypsum and limestone). In the Zion Canyon–Kanab Creek–Virgin River drainage, the Kaibab Limestone and gypsum-bearing evaporites provide extraordinary dissolved mineral loads. The Washington County groundwater from the Virgin River Alluvial Basin and Navajo Sandstone aquifer concentrates these minerals under the semi-arid Dixie climate with high evaporation. The result is one of Utah's hardest municipal supplies.
At 337.5 mg/L, St. George residents face severe hard water challenges. Scale deposits form within days on all fixtures, shower glass, and tile. Weekly or bi-weekly descaling is essential. Water heaters need semi-annual professional inspection. Washington County Water Conservancy District consistently delivers water meeting all Utah DDW and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from Virgin River and Washington County Water Conservancy District — Colorado River Aqueduct (Central Utah Project equivalent) imports and the Navajo Sandstone/Hurricane Fault zone groundwater of Washington County; extremely hard supply at 337.5 mg/L — among the hardest in Utah — reflecting the Colorado Plateau calcareous formations and the Mojave–Great Basin evaporite geology of southwest Utah.