Carson City Water Hardness & Quality Report (2026)
Water Hardness
10.8 grains per gallon
Source
groundwater
pH Level
8.1
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
474.2 mg/L
Est. Daily Cost
$0.49
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 Carson City, your appliances are currently losing 25% efficiency due to mineral buildup.
| Appliance | In Carson City | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.5 yrs | 8.5 yrs | -59% |
| Washing Machine | 6.7 yrs | 12 yrs | -44% |
| Water Heater | 8.2 yrs | 15 yrs | -45% |
Regional Water Comparison
How Carson City compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Carson City, Nevada | 185.5 mg/L | 2.6 ppt | 🔴 Very Hard | groundwater |
| South Lake Tahoe, California | 49 mg/L | 3.4 ppt | 🟢 Soft | mixed |
| Reno, Nevada | 96.5 mg/L | 2 ppt | 🟡 Moderately Hard | groundwater |
| Sparks, Nevada | 366 mg/L | 4 ppt | 🔴 Very Hard | groundwater |
| Sun Valley, Nevada | 433.5 mg/L | 4.6 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Carson City compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Carson City | 185.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Carson City's Water Unique?
Local geology and source profile
Carson City, Nevada, the state capital in the Carson Valley at the foot of the Sierra Nevada — one of the smallest state capitals in the United States by population, historically significant as the gateway to the Comstock Lode silver mining bonanza and the Nevada silver rush — draws its municipal water supply from the Marlette Lake–Spooner Summit Sierra Nevada water system and local Carson Valley groundwater wells via the City of Carson City Utility Services Water Division. Water hardness in Carson City measures 185.5 mg/L — classified as hard.
Carson City's hard supply reflects the Carson Valley alluvial aquifer's calcareous character. The Carson Valley Quaternary–Pleistocene alluvial aquifer beneath Carson City receives recharge from the Carson Range (eastern Sierra Nevada) and the Pine Nut Range (calcareous Great Basin limestone formations). The Carson Range recharge is moderately soft (Sierra Nevada granodiorite origin), but the Carson Valley basin fill (calcareous Tertiary–Quaternary lacustrine and alluvial deposits from the dry basin) has accumulated moderate calcareous content from Great Basin evaporite dissolution and carbonate input from the calcareous Basin and Range limestone formations. The blend of Sierra Nevada surface water and Carson Valley groundwater produces the moderate 185.5 mg/L.
At 185.5 mg/L, Carson City residents face regular hard water challenges. Scale deposits form on faucet aerators, showerheads, and appliances within weeks — monthly descaling with citric acid solution is standard maintenance. City of Carson City Utility Services consistently delivers water meeting all Nevada NDEP and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from the Marlette Lake–Spooner Summit system and local Carson Valley Artesian Wells via the City of Carson City Utility Services Water Division — the Sierra Nevada–Carson Range (Cretaceous Carson Range granodiorite and Pliocene volcanic andesite) drainage and Carson Valley Quaternary alluvial aquifer of Nevada's capital; hard supply at 185.5 mg/L — reflecting the calcareous Carson Valley alluvial aquifer contribution.