Cordova Water Hardness & Quality Report (2026)
Water Hardness
5.2 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
138.4 mg/L
Est. Daily Cost
$0.24
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 Cordova, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Cordova | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.6 yrs | 8.5 yrs | -22% |
| Washing Machine | 10.3 yrs | 12 yrs | -14% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Cordova compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Cordova, Tennessee | 89.5 mg/L | 3.1 ppt | 🟡 Moderately Hard | reservoir |
| Germantown, Tennessee | 160.5 mg/L | 5.5 ppt | 🟠 Hard | reservoir |
| Lakeland, Tennessee | 181 mg/L | 6.2 ppt | 🔴 Very Hard | reservoir |
| Ellendale, Tennessee | 85.5 mg/L | 3 ppt | 🟡 Moderately Hard | reservoir |
| Bartlett, Tennessee | 173.5 mg/L | 6 ppt | 🟠 Hard | reservoir |
National Benchmark
How Cordova compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Cordova | 89.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Cordova's Water Unique?
Local geology and source profile
Cordova, Tennessee, a suburban community in northeast Shelby County now annexed into the City of Memphis — one of Memphis's most affluent residential neighborhoods along Germantown Parkway — draws its municipal water supply from the Memphis Sand Aquifer (also known as the Middle Claiborne Aquifer) via the Memphis Light, Gas and Water Division (MLGW), which supplies Memphis and all Shelby County incorporated areas including Cordova from the famous Memphis deep well system. Water hardness in Cordova measures 89.5 mg/L — classified as moderately soft.
Cordova's moderately soft supply reflects the Memphis Sand Aquifer's exceptional geology. The Memphis Sand (Eocene Middle Claiborne Formation — a massive siliceous quartz sand deposit, 500–700 feet thick beneath Shelby County) is one of the most celebrated aquifers in the United States for its water quality and softness. The Memphis Sand was deposited as pure quartz beach and barrier island sands along the ancient Eocene Gulf Coast — the nearly pure silica quartz grains dissolve extremely slowly, contributing minimal dissolved calcium or magnesium. The aquifer produces naturally soft, high-quality water. Memphis's aquifer water consistently maintains moderate softness (85–100 mg/L range) across all Shelby County service zones.
With hardness at 89.5 mg/L, Cordova residents enjoy moderately soft water with minimal scale challenges. MLGW consistently delivers water meeting all Tennessee TDEC and EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the Mississippi River via the Memphis Light, Gas and Water Division (MLGW) Memphis deep aquifer — actually Memphis draws from the Memphis Sand Aquifer (Middle Claiborne Aquifer) not the Mississippi River directly; moderately soft supply at 89.5 mg/L — the Eocene Memphis Sand is a siliceous quartz sand aquifer producing characteristically soft water in Shelby County.