Ballwin Water Hardness & Quality Report (2026)
Water Hardness
5.1 grains per gallon
Source
river
pH Level
7.5
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
135.1 mg/L
Est. Daily Cost
$0.23
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 Ballwin, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Ballwin | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.7 yrs | 8.5 yrs | -21% |
| Washing Machine | 10.4 yrs | 12 yrs | -13% |
| Water Heater | 12.1 yrs | 15 yrs | -19% |
Regional Water Comparison
How Ballwin compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Ballwin, Missouri | 87.5 mg/L | 3.3 ppt | 🟡 Moderately Hard | river |
| Manchester, Missouri | 137 mg/L | 4.6 ppt | 🟠 Hard | river |
| Chesterfield, Missouri | 107.5 mg/L | 3.9 ppt | 🟡 Moderately Hard | river |
| Wildwood, Missouri | 118.5 mg/L | 4.1 ppt | 🟡 Moderately Hard | river |
| Kirkwood, Missouri | 88.5 mg/L | 3.4 ppt | 🟡 Moderately Hard | river |
National Benchmark
How Ballwin compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Ballwin | 87.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Ballwin's Water Unique?
Local geology and source profile
Ballwin, Missouri, in St. Louis County — a major west St. Louis suburban community (Ballwin is a significant St. Louis County city — one of the most desirable and popular west St. Louis suburbs; Ballwin and its Ellisville–Chesterfield corridor neighbors represent the affluent west St. Louis County suburban belt along Manchester Road and the I-40/I-64 corridor, with excellent public schools, large lot residential neighborhoods, and close proximity to St. Louis's corporate and financial services sector), a diverse St. Louis County community with a primarily affluent professional, Irish-American, and German-American suburban population, home of Wild Acres Park (one of Ballwin's significant community parks), adjacent to the Chesterfield Valley floodplain and the Monarch-Chesterfield Levee District, and one of west St. Louis County's most established suburban communities — draws its municipal water supply via Missouri American Water. Water hardness in Ballwin measures 87.5 mg/L — classified as moderately soft.
Ballwin's moderate softness reflects the west St. Louis Missouri American Water system's effective treatment. The Missouri American Water distributes Missouri River supply with effective treatment to the west St. Louis County Ballwin zone, producing the moderately soft 87.5 mg/L.
With hardness at 87.5 mg/L, Ballwin residents enjoy moderately soft water. Missouri American Water consistently delivers water meeting all Missouri DNR and EPA Safe Drinking Water Act requirements.
Geology & Source: River supply from the Missouri River (Creve Coeur Lake watershed) via the Missouri American Water — the St. Louis County west St. Louis suburban Ballwin corridor (Ordovician calcareous-moderate Gasconade Dolomite and Ordovician calcareous Jefferson City Dolomite — the calcareous-moderate west St. Louis Missouri Ozark Plateau dolomite; effective treatment); moderately soft supply at 87.5 mg/L in St. Louis County.