Sevierville Water Hardness & Quality Report (2026)
Water Hardness
13.3 grains per gallon
Source
reservoir
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
589.3 mg/L
Est. Daily Cost
$0.61
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 Sevierville, your appliances are currently losing 30% efficiency due to mineral buildup.
| Appliance | In Sevierville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 2.1 yrs | 8.5 yrs | -75% |
| Washing Machine | 5.2 yrs | 12 yrs | -57% |
| Water Heater | 6.5 yrs | 15 yrs | -57% |
Regional Water Comparison
How Sevierville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Sevierville, Tennessee | 227.5 mg/L | 7.5 ppt | 🔴 Very Hard | reservoir |
| Knoxville, Tennessee | 169 mg/L | 5.6 ppt | 🟠 Hard | reservoir |
| Maryville, Tennessee | 153.5 mg/L | 5.1 ppt | 🟠 Hard | reservoir |
| Morristown, Tennessee | 184 mg/L | 6.1 ppt | 🔴 Very Hard | reservoir |
| Farragut, Tennessee | 157 mg/L | 5.2 ppt | 🟠 Hard | reservoir |
National Benchmark
How Sevierville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Sevierville | 227.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Sevierville's Water Unique?
Local geology and source profile
Sevierville, Tennessee, in Sevier County — the Sevier County seat adjacent to Gatlinburg and Pigeon Forge at the gateway to the Great Smoky Mountains National Park in east Tennessee — receives its municipal water from the Sevier County Water Department, drawing from Douglas Lake (French Broad River, Sevier County) through the Sevier County treatment system.
The very hard 227.5 mg/L hardness and elevated TDS of 589.3 mg/L are surprisingly hard for a Smoky Mountains gateway community — reflecting the French Broad River at Douglas Lake's intense Valley and Ridge carbonate influence. The French Broad River at Sevier County drains the Tennessee Valley and Ridge — Ordovician Knox Dolomite (the dominant Valley and Ridge carbonate platform — very high purity dolomite), Cambrian Conasauga Group (calcareous limestone-shale), and Ordovician Chickamauga Limestone (high purity carbonate). Despite proximity to the insoluble Great Smoky Mountains, the Valley and Ridge carbonate geology dominates the Douglas Lake supply character.
At 227.5 mg/L, Sevierville's water is very hard. A water softener is strongly recommended. Scale builds rapidly on all heating surfaces, appliance lifespans are significantly shortened, and water heaters require annual descaling without softening. The PFAS level of 7.5 ppt warrants a certified drinking water filter — the Sevier County Great Smoky Mountains tourism corridor industrial and lodging PFAS input, and the east Tennessee Valley industrial PFAS background contribute to Sevierville's readings.
Geology & Source: Sevierville in Sevier County draws from Sevier County Water Department on Douglas Lake (French Broad River, Sevier County, east Tennessee) — the French Broad River drains the Valley and Ridge (Ordovician Knox Dolomite, Cambrian Conasauga calcareous) — Tennessee Sevier County French Broad River Valley and Ridge carbonate watershed produces very hard water at 227.5 mg/L with TDS 589.3 mg/L in this Sevier County Tennessee city.