Water Hardness in Orange County’s 120FLRD Aquifer: What Does It Mean?
The U.S. Geological Survey has conducted extensive groundwater sampling in Orange County, Florida, focusing on the 120FLRD aquifer that serves many residential wells in the area. From 2010 to 2026, 595 samples from 44 separate wells, ranging in depth from 280 to 1500 feet, were analyzed for hardness components, specifically calcium (Ca) and magnesium (Mg).
The median hardness concentration found across these samples was 388.0 mg/L, with results ranging as low as 1.35 mg/L up to 3890.0 mg/L. Hardness was detected in virtually all samples except for five, indicating that mineral content affecting water hardness is common throughout this aquifer. It’s important to note that none of these figures exceed federal thresholds, confirming the water’s compliance with health and safety criteria.
How Hard Water May Relate to Dry Skin at Home
Hard water contains elevated levels of calcium and magnesium ions, which can interact with soap, leaving residue that reduces the soap’s ability to cleanse effectively. This interaction may leave a film on skin that contributes to dryness and irritation, a common concern among households in areas with hard water. While the government sampling identifies the general mineral levels in local groundwater, it does not specify any individual household’s water quality, which can vary depending on well depth, plumbing, and treatment history.
Understanding whether hard water is contributing to dry skin requires testing your home’s water directly for hardness levels. Such testing will provide the exact mineral concentrations present, distinguishing your water's condition from the area average.
What Testing Should You Consider?
- Measure the total hardness as mg/L or grains per gallon to assess the mineral concentration.
- Test for calcium and magnesium specifically if possible, to understand the balance of hardening minerals.
- Evaluate water pH and other elements that can influence skin sensitivity.
Addressing Hard Water Effects with Water Softening
If testing confirms elevated water hardness in your household supply, a water softening solution designed for whole-house use can modify the water to reduce calcium and magnesium ions. The WSP 120 cu. ft. Whole House Water Softener - Commercial is a device built to treat water on entry to your home, improving its softness and skin compatibility. This technology replaces hardness minerals with sodium or potassium ions through a process known as ion exchange, effectively reducing scale formation and the residue that can irritate skin.
This product ships ready to configure with your water system, making it compatible with a range of household setups. Using a softener can lead to noticeable improvements in skin comfort and reduce soap scum buildup on fixtures and laundry.
Final Considerations
While government data from local wells provides a valuable overview of the aquifer’s mineral profile, your home’s water quality can differ. Dry skin may have multiple contributing factors beyond water hardness, including environmental conditions and personal skin care routines. Testing your specific water supply is the most reliable way to identify if hardness is a key element.
Should hardness be a confirmed factor, whole-house softening with a system like the WSP 120 cu. ft. solution offers a documented method to mitigate hard water’s effects and support healthier skin in your household.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-05-27. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.
On record: U.S. Geological Survey sampling of Hardness, Ca, Mg in the 120FLRD aquifer (Orange County): 595 results from 44 wells, median 388.0 mg/L, range 1.35-3890.0 mg/L; none above any federal threshold