East Brainerd Water Hardness & Quality Report (2026)
Water Hardness
11.4 grains per gallon
Source
reservoir
pH Level
8.3
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
459.3 mg/L
Est. Daily Cost
$0.52
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 East Brainerd, your appliances are currently losing 26% efficiency due to mineral buildup.
| Appliance | In East Brainerd | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.1 yrs | 8.5 yrs | -64% |
| Washing Machine | 6.4 yrs | 12 yrs | -47% |
| Water Heater | 7.8 yrs | 15 yrs | -48% |
Regional Water Comparison
How East Brainerd compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ East Brainerd, Tennessee | 195.5 mg/L | 6.5 ppt | 🔴 Very Hard | reservoir |
| East Ridge, Tennessee | 206 mg/L | 6.9 ppt | 🔴 Very Hard | reservoir |
| East Chattanooga, Tennessee | 195.5 mg/L | 6.5 ppt | 🔴 Very Hard | reservoir |
| Chattanooga, Tennessee | 233.5 mg/L | 7.8 ppt | 🔴 Very Hard | reservoir |
| Middle Valley, Tennessee | 98 mg/L | 3.2 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How East Brainerd compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ East Brainerd | 195.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes East Brainerd's Water Unique?
Local geology and source profile
East Brainerd, Tennessee, in Hamilton County — an unincorporated Hamilton County community adjacent to Chattanooga and Ooltewah in the east Chattanooga metro — receives its water from Tennessee American Water, drawing from the Tennessee River (Chickamauga Lake, Hamilton County) through the Chattanooga metro distribution.
The very hard 195.5 mg/L hardness and TDS of 459.3 mg/L reflect the southeast Tennessee Tennessee River Ridge and Valley supply's intense Ordovician and Mississippian calcareous character — consistent with other Chattanooga-area Tennessee River communities (Chattanooga: ~192 mg/L; Red Bank: ~198 mg/L). Chickamauga Lake (Tennessee River) at Hamilton County receives drainage from the Ridge and Valley — Ordovician Chickamauga Limestone (calcareous — primary hardness contributor), Mississippian Fort Payne Chert (slightly calcareous), Mississippian Bangor Limestone (calcareous), and Ordovician Knox Group dolomite (calcareous-evaporitic — TDS contributor). The Ordovician Chickamauga and Knox calcareous formations produce the very hard Chattanooga area supply.
At 195.5 mg/L with TDS 459, East Brainerd's water is very hard. A water softener is strongly recommended. Scale builds rapidly on all surfaces, appliance lifespans are significantly shortened, and water heaters require annual descaling without softening. The PFAS level of 6.5 ppt warrants a certified drinking water filter — the Hamilton County Chattanooga industrial corridor and the Tennessee River PFAS background from the TVA industrial complex contribute to East Brainerd's readings.
Geology & Source: East Brainerd in Hamilton County draws from the Tennessee American Water on the Tennessee River via Chickamauga Lake (Hamilton County, southeast Tennessee) — Chickamauga Lake impounds the Tennessee River draining the Ridge and Valley (Ordovician Chickamauga Limestone, Mississippian Fort Payne Chert — calcareous) — Tennessee Hamilton County Tennessee River Ridge and Valley calcareous watershed produces very hard water at 195.5 mg/L with TDS 459.3 mg/L.