Concord Water Hardness & Quality Report (2026)
Water Hardness
180+ mg/L
Very Hardestimated · not lab-verified
Source
river
pH Level
8.2
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
401.5 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 Concord, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Concord | 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 Concord compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Concord, Missouri | ≈ 180+ mg/L | 6 ppt | 🔴 Very Hard | river |
| Affton, Missouri | 67 mg/L | 6.3 ppt | 🟡 Moderately Hard | river |
| Mehlville, Missouri | 67 mg/L | 6.8 ppt | 🟡 Moderately Hard | river |
| Crestwood, Missouri | ≈ 120–179 mg/L | 7.6 ppt | 🟠 Hard | river |
| Webster Groves, Missouri | ≈ 120–179 mg/L | 7.7 ppt | 🟠 Hard | river |
National Benchmark
How Concord compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Concord | ≈ 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 Concord's Water Unique?
Local geology and source profile
The Jefferson County Public Water Supply District #3 serves the Concord community, drawing water from local aquifers in the region. The district operates treatment facilities to process this supply for residential and commercial customers across parts of Jefferson County, including areas around Concord near the St. Louis County line. The Missouri DNR resources provide detailed service maps and well locations, with compliance monitoring reported annually. The water supply for Jefferson County derives from the St. Francois aquifer system and associated Springfield Plateau Aquifer, formed in Mississippian-age limestones and dolomites like the Burlington-Keokuk Formation.
The water in Concord is shaped by its geology - the Ozark Plateaus region is characterized by carbonate rock formations, including limestones and dolomites, which dissolve over time and contribute high levels of dissolved minerals to the groundwater. This results in a characteristically hard supply, with surface runoff from local watersheds feeding recharge, but the dominant chemistry is shaped by prolonged contact with these limestone and dolomite bedrock layers. The Missouri Ozarks and Iowa-Illinois carbonate plain also play a role in the water's hardness.
Homeowners in Concord often notice the effects of hard water on their appliances and pipes. Scale buildup reduces efficiency and lifespan, and soap lathering is poor, leaving films on skin, hair, and dishes. To combat this, regular descaling of fixtures and appliances is necessary, and a water softener is highly recommended to prevent mineral deposits and improve cleaning effectiveness. The Jefferson County Public Water Supply District #3's 2024 CCR confirms compliance with EPA standards, and routine tests show low levels of iron and manganese, managed through filtration and disinfection.
Geology & Source: Missouri Ozarks - Ordovician Gasconade Dolomite; Mississippian Salem Limestone produce hard water
Other Missouri Water Reports
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Frequently Asked Questions
Is Concord's water safe to drink?
Do I need a water softener in Concord?
How does Concord compare to the USA average?
Data Sources & Methodology
Water quality data for Concord 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.