Concord Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
7.6
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
186.9 mg/L
Est. Daily Cost
$0.40
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 20% efficiency due to mineral buildup.
| Appliance | In Concord | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Concord compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Concord, North Carolina | ≈ 120–179 mg/L | 50.1 ppt | 🟠 Hard | reservoir |
| Kannapolis, North Carolina | ≈ 0–60 mg/L | 14.2 ppt | 🟢 Soft | reservoir |
| Harrisburg, North Carolina | ≈ 120–179 mg/L | 213.1 ppt | 🟠 Hard | reservoir |
| Mint Hill, North Carolina | ≈ 0–60 mg/L | 5.5 ppt | 🟢 Soft | reservoir |
| Huntersville, North Carolina | ≈ 0–60 mg/L | 6.3 ppt | 🟢 Soft | reservoir |
National Benchmark
How Concord compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Concord | ≈ 120–179 mg/L | 🟠 Moderate |
| 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 City of Concord Water Resources Department serves approximately 88,000 residents in Concord and nearby areas like Midland in Cabarrus County, North Carolina. Drinking water is sourced from three surface reservoirs: Lake Concord, Lake Don T. Howell (Coddle Creek), and Lake Fisher, with backup supply available from the Yadkin River via the Albemarle waterline. Two treatment plants — Hillgrove Water Treatment Plant and Coddle Creek Water Treatment Plant — process raw water through coagulation, sedimentation, filtration, and disinfection before distribution.
These reservoirs lie within the upper Yadkin River basin in the Piedmont physiographic province, underlain by ancient metamorphic rocks of the Carolina Slate Belt from the Paleozoic era — including Carolina gneiss, slate, schist, and granitic intrusions. The supply is entirely surface water with no major aquifer involvement; runoff from forested and developed uplands feeds the lakes. Weathering-resistant crystalline bedrock yields limited limestone buffering, but sufficient calcium and magnesium dissolve from soils and rock outcrops to produce a moderately mineralised supply.
Scale buildup occurs noticeably at moderate hardness levels in appliances like water heaters, dishwashers, and coffee makers, reducing efficiency and lifespan; faucets and fixtures may develop spots and stains. Regular maintenance includes deliming heaters annually and using vinegar soaks for showerheads. A water softener is recommended to prevent buildup and extend appliance life. The 2026 water quality report confirms a perfect score of 100/100, with zero EPA violations; past detections include low levels of bromodichloromethane and dibromoacetic acid byproducts, managed via treatment.
Geology & Source: Yadkin-Pee Dee watershed; Piedmont Carolina Slate Belt — Paleozoic gneiss, schist, and granitic formations; weathering-resistant crystalline bedrock with limited limestone yields moderate hardness via mineral leaching from soils
Other North Carolina 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.