Crossville Water Hardness & Quality Report (2026)
Water Hardness
8.4 grains per gallon
Source
reservoir
pH Level
7.9
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
277.5 mg/L
Est. Daily Cost
$0.38
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 Crossville, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Crossville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.9 yrs | 8.5 yrs | -42% |
| Washing Machine | 8.3 yrs | 12 yrs | -31% |
| Water Heater | 9.9 yrs | 15 yrs | -34% |
Regional Water Comparison
How Crossville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Crossville, Tennessee | 143.5 mg/L | 4.8 ppt | 🟠 Hard | reservoir |
| Cookeville, Tennessee | 216 mg/L | 7.2 ppt | 🔴 Very Hard | reservoir |
| Athens, Tennessee | 127.5 mg/L | 4.2 ppt | 🟠 Hard | reservoir |
| Soddy-Daisy, Tennessee | 202 mg/L | 6.7 ppt | 🔴 Very Hard | reservoir |
| Oak Ridge, Tennessee | 94 mg/L | 3.1 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Crossville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Crossville | 143.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Crossville's Water Unique?
Local geology and source profile
Crossville, Tennessee, in Cumberland County — the Cumberland County seat adjacent to Fairfield Glade and Crab Orchard on the Cumberland Plateau in central Tennessee — receives its water from the City of Crossville Water Department, drawing from Lake Tansi and local plateau reservoirs through the central Tennessee distribution.
The hard 143.5 mg/L hardness and TDS of 277.5 mg/L reflect the Cumberland County Cumberland Plateau supply's hard calcareous character — the Pennsylvanian Gizzard Group and Mississippian Monteagle Limestone are calcareous formations in the Cumberland Plateau escarpment zone, and the plateau reservoir system concentrates minerals from its calcareous limestone watershed (compare Fairfield Glade TN: 140/271 in Cumberland County comparable; Crab Orchard TN: 146/283 in Cumberland County comparable; Crossville consistent hard from the same Cumberland County Cumberland Plateau Mississippian calcareous supply). The Cumberland Plateau watershed — Pennsylvanian Gizzard Group (slightly calcareous — primary hardness contributor), Mississippian Monteagle Limestone (calcareous — secondary contributor), and Quaternary plateau alluvium (slightly calcareous — minor TDS).
At 143.5 mg/L with TDS 278, Crossville's water is hard — scale builds in appliances. Quarterly descaling is appropriate. The PFAS level of 4.8 ppt is moderate — a certified drinking water filter provides added protection. Review the City of Crossville's annual water quality report.
Geology & Source: Crossville in Cumberland County draws from the Crossville Water on Lake Tansi reservoir (Cumberland County, central Tennessee) — the Cumberland Plateau drains Pennsylvanian Gizzard Group (slightly calcareous) and Mississippian Monteagle Limestone (calcareous) — Tennessee Cumberland County Cumberland Plateau Mississippian calcareous supply produces hard water at 143.5 mg/L with TDS 277.5 mg/L.