Prairie Village Water Hardness & Quality Report (2026)
Water Hardness
8.5 grains per gallon
Source
groundwater
pH Level
7.8
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
334.8 mg/L
Est. Daily Cost
$0.39
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 Prairie Village, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Prairie Village | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.8 yrs | 8.5 yrs | -44% |
| Washing Machine | 8.2 yrs | 12 yrs | -32% |
| Water Heater | 9.8 yrs | 15 yrs | -35% |
Regional Water Comparison
How Prairie Village compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Prairie Village, Kansas | 146 mg/L | 2.5 ppt | 🟠 Hard | groundwater |
| Leawood, Kansas | 378 mg/L | 5.2 ppt | 🔴 Very Hard | groundwater |
| Overland Park, Kansas | 374.5 mg/L | 5.1 ppt | 🔴 Very Hard | groundwater |
| Shawnee, Kansas | 347.5 mg/L | 4.8 ppt | 🔴 Very Hard | groundwater |
| Lenexa, Kansas | 383 mg/L | 5.2 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Prairie Village compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Prairie Village | 146 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Prairie Village's Water Unique?
Local geology and source profile
Prairie Village, Kansas, in Johnson County — one of the Kansas City metro's most established inner suburbs, a walkable, tree-canopied community bordering Overland Park and adjacent to Mission Hills along the State Line Road corridor — receives its municipal water from the Johnson County Water District No. 1 or through purchase from the Kansas City Water Services network, which draws from the Missouri River or the Kansas River alluvial aquifer (Kaw River groundwater infiltration wells). Johnson County's growing suburb depends on the Kansas River-Missouri River corridor water system.
The moderately hard 146 mg/L hardness and TDS of 334.8 mg/L reflect the Kansas City metro supply's characteristic Pennsylvanian and Permian geological input. The Kansas River (Kaw River) drains the Flint Hills and eastern Kansas — a region underlain by the Pennsylvanian Lansing-Kansas City Group cyclothem sequence (alternating limestone, shale, and dolomite) and the Permian Matfield Shale and Council Grove Group carbonates. These cyclothem formations provide steady dissolved carbonate and sulfate mineral loading to the Kansas River, producing moderately hard water. The alluvial wells along the Kansas River bank-filtration zone moderate the raw river mineral content, producing a managed, moderately hard finished water consistent with the Kansas City metro supply profile.
At 146 mg/L, Prairie Village's water is moderately hard — comfortable for Johnson County household use. Scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling of heating appliances is appropriate. The PFAS level of 2.5 ppt is excellent — among the best in the Kansas City metro dataset — reflecting Prairie Village's residential character, the Johnson County suburban watershed's limited industrial PFAS sources, and the Kansas River corridor's predominantly agricultural (rather than heavy industrial) catchment.
Geology & Source: Prairie Village in Johnson County draws from Johnson County Water District treating the Kansas River alluvial aquifer or Missouri River infiltration — the Kansas River drainage basin overlies Pennsylvanian and Permian cyclothem sedimentary formations (Cherokee-Pleasanton shale and limestone sequence) — mixed Kansas River alluvial and Pennsylvanian carbonate formations produce moderately hard water at 146 mg/L with TDS 335 mg/L in this Johnson County Kansas City suburb.