Mount Washington Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
river
pH Level
7.8
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
261.8 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 Mount Washington, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Mount Washington | 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 Mount Washington compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Mount Washington, Kentucky | ≈ 120–179 mg/L | 4.6 ppt | 🟠 Hard | river |
| Fern Creek, Kentucky | ≈ 120–179 mg/L | 5 ppt | 🟠 Hard | river |
| Highview, Kentucky | ≈ 180+ mg/L | 6.1 ppt | 🔴 Very Hard | river |
| Jeffersontown, Kentucky | 115 mg/L | 4 ppt | 🟡 Moderately Hard | river |
| Newburg, Kentucky | ≈ 120–179 mg/L | 6.1 ppt | 🟠 Hard | river |
National Benchmark
How Mount Washington compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Mount Washington | ≈ 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 Mount Washington's Water Unique?
Local geology and source profile
Mount Washington Utilities draws its drinking water from Floyds Fork, a local tributary that feeds into the Ohio River watershed. The water is treated at a plant near Mount Washington, with detailed information available in the city's annual Consumer Confidence Report. This report, along with data from tapwaterdata.com, confirms that the utility consistently meets or exceeds EPA standards for all tested contaminants, ensuring safe drinking water for the approximately 10,000 residents served in Bullitt County, Kentucky.
The Floyd's Fork watershed is geologically situated within the Knobs region, characterized by Upper Ordovician limestones, including the Lexington Formation, and interbedded shales. These ancient carbonate rocks, primarily limestone and dolomite, are prone to dissolution, naturally releasing minerals like calcium and magnesium into the surface water. The presence of karst features in the area further aids this process by enhancing infiltration and mineral pickup from surface runoff, contributing to the water's natural, moderate hardness.
This moderately hard water can lead to scale buildup in appliances such as water heaters and dishwashers, potentially reducing their efficiency and lifespan over time. You might also notice that laundry feels a bit stiffer and that soap doesn't lather as effectively. To combat scale, regularly descaling showerheads and faucets with vinegar can help. While not strictly necessary, installing a whole-home water softener is an option for households looking to prevent spotting on glassware and extend the life of their plumbing and fixtures. Residents can obtain the latest water quality report from City Hall.
Geology & Source: Floyds Fork watershed limestone and shale; Ordovician carbonate rocks impart moderate hardness
Other Kentucky Water Reports
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Frequently Asked Questions
Is Mount Washington's water safe to drink?
Do I need a water softener in Mount Washington?
How does Mount Washington compare to the USA average?
Data Sources & Methodology
Water quality data for Mount Washington 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.