Maryville Water Hardness & Quality Report (2026)
Water Hardness
9 grains per gallon
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
308 mg/L
Est. Daily Cost
$0.41
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 Maryville, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Maryville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.5 yrs | 8.5 yrs | -47% |
| Washing Machine | 7.9 yrs | 12 yrs | -34% |
| Water Heater | 9.5 yrs | 15 yrs | -37% |
Regional Water Comparison
How Maryville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Maryville, Tennessee | 153.5 mg/L | 5.1 ppt | 🟠 Hard | reservoir |
| Knoxville, Tennessee | 169 mg/L | 5.6 ppt | 🟠 Hard | reservoir |
| Farragut, Tennessee | 157 mg/L | 5.2 ppt | 🟠 Hard | reservoir |
| Oak Ridge, Tennessee | 94 mg/L | 3.1 ppt | 🟡 Moderately Hard | reservoir |
| Sevierville, Tennessee | 227.5 mg/L | 7.5 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Maryville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Maryville | 153.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Maryville's Water Unique?
Local geology and source profile
Maryville, Tennessee, the Blount County seat — a major east Tennessee Great Smoky Mountains gateway city (Maryville is the Blount County seat — a significant east Tennessee city adjacent to Great Smoky Mountains National Park; Maryville is the primary east Tennessee gateway community for the southern entrance to Great Smoky Mountains National Park (GSMNP — the most visited National Park in the United States, receiving over 12 million visitors annually; the Townsend and Little River corridor through Blount County is one of the most scenic drives in the eastern United States)); home of Maryville College (a small liberal arts college founded in 1819 — one of the oldest colleges in Tennessee; Maryville College has a distinguished history as one of the first colleges in the South to admit women and Black students), a diverse Blount County community with a significant Appalachian heritage, Cherokee cultural connection (the Maryville–Blount County area borders the Qualla Boundary — the Cherokee Nation's homeland in the Great Smoky Mountains), and outdoor recreation economy population — draws its municipal water supply via the Maryville Utility Board. Water hardness in Maryville measures 153.5 mg/L — classified as hard.
Maryville's hard supply reflects the east Tennessee Blount County Appalachian Valley dolomite karst's calcareous character. The Little River watershed drains the Ordovician Knox Dolomite (calcareous). Maryville Utility Board applies effective treatment, producing the hard 153.5 mg/L.
At 153.5 mg/L, Maryville residents face regular hard water challenges. Monthly descaling and water softeners are recommended. Maryville Utility Board consistently delivers water meeting all Tennessee TDEC and EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the Little River (Fort Loudoun Lake watershed) via the Maryville Utility Board — the Blount County east Tennessee Appalachian Valley Great Smoky Mountains gateway Maryville corridor (Ordovician calcareous Knox Dolomite and Cambrian calcareous Conasauga Group shale — the calcareous east Tennessee Blount County Appalachian Valley dolomite karst; effective treatment); hard supply at 153.5 mg/L in Blount County.