Manchester Water Hardness & Quality Report (2026)
Water Hardness
8 grains per gallon
Source
river
pH Level
7.8
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
250.3 mg/L
Est. Daily Cost
$0.37
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 Manchester, your appliances are currently losing 18% efficiency due to mineral buildup.
| Appliance | In Manchester | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.1 yrs | 8.5 yrs | -40% |
| Washing Machine | 8.5 yrs | 12 yrs | -29% |
| Water Heater | 10.1 yrs | 15 yrs | -33% |
Regional Water Comparison
How Manchester compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Manchester, Missouri | 137 mg/L | 4.6 ppt | 🟠 Hard | river |
| Ballwin, Missouri | 87.5 mg/L | 3.3 ppt | 🟡 Moderately Hard | river |
| Chesterfield, Missouri | 107.5 mg/L | 3.9 ppt | 🟡 Moderately Hard | river |
| Kirkwood, Missouri | 88.5 mg/L | 3.4 ppt | 🟡 Moderately Hard | river |
| Creve Coeur, Missouri | 251.5 mg/L | 7.6 ppt | 🔴 Very Hard | river |
National Benchmark
How Manchester compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Manchester | 137 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Manchester's Water Unique?
Local geology and source profile
Manchester, Missouri, in Saint Louis County — a Saint Louis County city adjacent to Ballwin and Kirkwood in the southwest Saint Louis County corridor — receives its municipal water from Missouri American Water (MOAW), drawing from the Missouri River at the MOAW Missouri River treatment plant.
The moderately hard 137 mg/L hardness and TDS of 250.3 mg/L are significantly softer than the Creve Coeur MOAW reading (251.5 mg/L) despite being from the same Missouri River supply — possibly reflecting different distribution zones, blending ratios, or seasonal treatment variation across the St. Louis metro. All Saint Louis County MOAW communities receive water from the same Missouri River source but may show variation by distance and treatment plant.
At 137 mg/L, Manchester's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 4.6 ppt warrants a certified drinking water filter — the Lambert-St. Louis International Airport (AFFF in the Missouri River watershed), the west Saint Louis County industrial corridor, and the Missouri River PFAS background contribute to Manchester's readings.
Geology & Source: Manchester in Saint Louis County draws from Missouri American Water on the Missouri River (Saint Louis County) — the Missouri drains the Great Plains and Rockies (Cretaceous Pierre Shale, calcareous Pleistocene loess) — Missouri River Rocky Mountain-Great Plains calcareous drainage produces moderately hard water at 137 mg/L with TDS 250 mg/L in this Saint Louis County Missouri city.