Elizabethton Water Hardness & Quality Report (2026)
Water Hardness
14 grains per gallon
Source
reservoir
pH Level
8.5
neutral = 7.0
Lead
0.009 mg/L
✓ Below action level
TDS
638.3 mg/L
Est. Daily Cost
$0.64
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 Elizabethton, your appliances are currently losing 32% efficiency due to mineral buildup.
| Appliance | In Elizabethton | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.7 yrs | 8.5 yrs | -80% |
| Washing Machine | 4.8 yrs | 12 yrs | -60% |
| Water Heater | 6 yrs | 15 yrs | -60% |
Regional Water Comparison
How Elizabethton compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Elizabethton, Tennessee | 239 mg/L | 7.9 ppt | 🔴 Very Hard | reservoir |
| Johnson City, Tennessee | 232 mg/L | 7.6 ppt | 🔴 Very Hard | reservoir |
| Bristol, Tennessee | 142.5 mg/L | 4.6 ppt | 🟠 Hard | reservoir |
| Bristol, Virginia | 161.5 mg/L | 8.6 ppt | 🟠 Hard | reservoir |
| Kingsport, Tennessee | 153.5 mg/L | 5 ppt | 🟠 Hard | reservoir |
National Benchmark
How Elizabethton compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Elizabethton | 239 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Elizabethton's Water Unique?
Local geology and source profile
Elizabethton, Tennessee, in Carter County — the Carter County seat adjacent to Johnson City and Hampton on the Watauga River in northeast Tennessee — receives its water from the Elizabethton Water Department, drawing from the Watauga River or Watauga Lake (Carter County) through the northeast Tennessee distribution.
The hard 239 mg/L hardness and TDS of 638.3 mg/L are significantly harder than expected from a Blue Ridge mountain supply — reflecting the Carter County position where the Watauga River flows through the calcareous Valley and Ridge province's Cambrian limestone belt before reaching Elizabethton, accumulating significant calcareous dissolution from the Elbrook Formation and Knox Dolomite. The Watauga River at Carter County — Cambrian Elbrook Limestone (calcareous — primary hardness contributor), Ordovician Knox Dolomite (dolomitic — secondary contributor), and Precambrian Cranberry Gneiss (insoluble — dilutant in upper watershed).
At 239 mg/L with TDS 638, Elizabethton's water is hard. A water softener is strongly recommended to prevent rapid scale buildup. A reverse osmosis system is advisable for drinking water. The PFAS level of 7.9 ppt warrants a certified drinking water filter — the Carter County northeast Tennessee industrial corridor and the Watauga River basin PFAS legacy contribute to Elizabethton's elevated readings.
Geology & Source: Elizabethton in Carter County draws from the Elizabethton Water Department on the Watauga River or Watauga Lake (Carter County, northeast Tennessee) — the Watauga at Carter County drains the Blue Ridge Mountains (Precambrian Cranberry Gneiss — insoluble) and Cambrian Elbrook Limestone — Tennessee Carter County Blue Ridge-Cambrian calcareous reservoir produces hard water at 239 mg/L with TDS 638.3 mg/L.