Germantown Water Hardness & Quality Report (2026)
Water Hardness
9.4 grains per gallon
Source
reservoir
pH Level
8
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
339.5 mg/L
Est. Daily Cost
$0.43
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 Germantown, your appliances are currently losing 21% efficiency due to mineral buildup.
| Appliance | In Germantown | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.3 yrs | 8.5 yrs | -49% |
| Washing Machine | 7.7 yrs | 12 yrs | -36% |
| Water Heater | 9.2 yrs | 15 yrs | -39% |
Regional Water Comparison
How Germantown compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Germantown, Tennessee | 160.5 mg/L | 5.5 ppt | 🟠 Hard | reservoir |
| Cordova, Tennessee | 89.5 mg/L | 3.1 ppt | 🟡 Moderately Hard | reservoir |
| Olive Branch, Mississippi | 159 mg/L | 7.6 ppt | 🟠 Hard | groundwater |
| Bartlett, Tennessee | 173.5 mg/L | 6 ppt | 🟠 Hard | reservoir |
| Ellendale, Tennessee | 85.5 mg/L | 3 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Germantown compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Germantown | 160.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Germantown's Water Unique?
Local geology and source profile
Germantown, Tennessee, in Shelby County east of Memphis — one of the wealthiest and most affluent communities in Tennessee, a major east Shelby County Memphis suburb known for its upscale residential character, nationally recognized public schools (Germantown City Schools consistently rank among the top in Tennessee), and a diverse and prosperous Memphis east suburban community — draws its municipal water supply via the Memphis Light, Gas and Water (MLG&W). Water hardness in Germantown measures 160.5 mg/L — classified as hard.
Germantown's moderate-to-hard supply reflects the Shelby County MLG&W distribution characteristics. The MLG&W draws from the Memphis Sand Aquifer (the deeply confined Cretaceous calcareous-moderate alluvial aquifer of the Memphis area — one of the largest municipal water supplies from a confined sand aquifer in the US, typically hard at 150–180 mg/L). The Memphis Sand Aquifer accumulates hardness from: the Cretaceous McNairy Formation and Memphis Sand (calcareous-moderate sand with calcareous cement); the Tertiary Claiborne aquifer (calcareous-moderate). Germantown's east suburban MLG&W distribution zone produces the moderate-to-hard 160.5 mg/L.
At 160.5 mg/L, Germantown residents face moderate-to-hard scale challenges. Monthly descaling with citric acid solution is recommended. MLG&W consistently delivers water meeting all Tennessee TDEC and EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the Mississippi River (Memphis Sand Aquifer/Wolf River) via the Memphis Light, Gas and Water (MLG&W) — the Shelby County west Tennessee Memphis metro east suburban (Cretaceous Memphis Sand Aquifer — the deeply confined calcareous-moderate alluvial aquifer of Memphis; Germantown's MLG&W distribution zone); moderately hard supply at 160.5 mg/L in Shelby County.