Prosper Water Hardness & Quality Report (2026)
Water Hardness
21.5 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
1094.3 mg/L
Est. Daily Cost
$0.98
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 Prosper, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Prosper | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How Prosper compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Prosper, Texas | 368.5 mg/L | 10.9 ppt | 🔴 Very Hard | mixed |
| Frisco, Texas | 384 mg/L | 11.2 ppt | 🔴 Very Hard | mixed |
| The Trails of Frisco, Texas | 123 mg/L | 5.7 ppt | 🟠 Hard | mixed |
| Little Elm, Texas | 197 mg/L | 7.2 ppt | 🔴 Very Hard | mixed |
| The Colony, Texas | 379 mg/L | 11.1 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Prosper compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Prosper | 368.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Prosper home
Shop water softeners on Amazon.com →
What Makes Prosper's Water Unique?
Local geology and source profile
Prosper, Texas, in Collin County — a Collin County city adjacent to Frisco and McKinney in the far north Dallas metro — receives its municipal water from the North Texas Municipal Water District (NTMWD), drawing from Lake Lavon (East Fork of the Trinity River, Collin County) through the NTMWD regional distribution.
The extremely hard 368.5 mg/L hardness and very high TDS of 1,094.3 mg/L reflect the north Dallas Trinity River watershed's intense calcareous and evaporitic character — consistent with other NTMWD-served communities (Frisco: ~370 mg/L; McKinney: ~380 mg/L). Lake Lavon (East Fork Trinity River) drains the Cretaceous Eagle Ford Formation (calcareous chalk-marl — very hard), Cretaceous Woodbine Formation (calcareous), and upstream Permian Wichita Group (evaporitic gypsum and halite — major TDS contributor from the Red River-Permian Basin drainage). The cumulative Cretaceous calcareous and Permian evaporitic loading produces the exceptional north Dallas hardness and TDS.
At 368.5 mg/L with TDS 1,094, Prosper's water is extremely hard. A water softener is absolutely essential. Scale forms immediately on all surfaces, appliance lifespans are critically shortened, and water heaters fail within 2 years without treatment. The PFAS level of 10.9 ppt warrants a certified reverse osmosis drinking water filter — the Collin County north DFW growth corridor and the Trinity River PFAS complex contribute to Prosper's elevated readings.
Geology & Source: Prosper in Collin County draws from the North Texas Municipal Water District on Lake Lavon (Collin County, north Dallas metro) — Lake Lavon drains the East Fork Trinity watershed (Cretaceous Eagle Ford calcareous chalk, Permian Wichita evaporitic redbeds) — Texas Collin County Lake Lavon East Fork Trinity Cretaceous-Permian calcareous watershed produces extremely hard water at 368.5 mg/L with TDS 1094.3 mg/L in this Collin County Texas city.