Wildwood Water Hardness & Quality Report (2026)
Water Hardness
180+ mg/L
Very Hardestimated · not lab-verified
Source
river
pH Level
7.7
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
204 mg/L
Est. Daily Cost
$0.91
energy & soap waste
Source: See methodology section below · 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 Wildwood, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Wildwood | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.7 yrs | 8.5 yrs | -45% |
| Washing Machine | 6.6 yrs | 12 yrs | -45% |
| Water Heater | 8.3 yrs | 15 yrs | -45% |
Regional Water Comparison
How Wildwood compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Wildwood, Missouri | ≈ 180+ mg/L | 4.1 ppt | 🔴 Very Hard | river |
| Eureka, Missouri | ≈ 180+ mg/L | 0 ppt | 🔴 Very Hard | river |
| Ballwin, Missouri | ≈ 180+ mg/L | 3.3 ppt | 🔴 Very Hard | river |
| Chesterfield, Missouri | ≈ 120–179 mg/L | 10.1 ppt | 🟠 Hard | river |
| Manchester, Missouri | ≈ 120–179 mg/L | 4.6 ppt | 🟠 Hard | river |
National Benchmark
How Wildwood compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Wildwood | ≈ 180+ mg/L | 🔴 High |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Wildwood's Water Unique?
Local geology and source profile
The Wildwood Lot Owners Association (WLOA) provides drinking water to its residential community in Wildwood, Missouri, within St. Louis County. Water is sourced exclusively from Well #1 Wildwood, a groundwater well serving the entire community. No named treatment plants are specified in public records, but the system undergoes standard disinfection and monitoring as required for public water systems in Missouri. The service area covers the Wildwood Lot Owners Association properties, which rely entirely on this private utility for their potable water supply.
The aquifer underlying Wildwood taps into Mississippian and Ordovician limestone formations prevalent in the St. Louis County area, part of the Ozarks' northern extension—including the Burlington and Keokuk Limestones and the Plattin and Joachim Formations. These soluble carbonate rocks impart a hard character to groundwater through mineral dissolution during subsurface flow, with karst solution channels and sinkholes enhancing calcium and magnesium leaching from Paleozoic bedrock.
At very hard levels, scale buildup significantly affects water heaters, dishwashers, washing machines, and faucets, depositing thick mineral layers that reduce efficiency and lifespan. Soap lathering is poor, requiring higher detergent use and producing spotted dishes. Regular vinegar descaling and periodic fixture cleaning are recommended. A water softener is strongly recommended for all households. Recent tests show calcium at 69.1 mg/L and chloride at 35.6 mg/L; the system complies with lead and copper rules with no violations, and PFAS data are not specified in available reports.
Geology & Source: Ozark Plateau karst; Mississippian Burlington and Keokuk Limestones and Ordovician Plattin and Joachim Formations; solution channels enhance calcium and magnesium dissolution from Paleozoic bedrock, producing hard groundwater
Other Missouri Water Reports
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Frequently Asked Questions
Is Wildwood's water safe to drink?
Do I need a water softener in Wildwood?
How does Wildwood compare to the USA average?
Data Sources & Methodology
Water quality data for Wildwood is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.