What Laboratory Reports Show About Water Hardness
Laboratory water-quality analyses for hardness typically report concentrations of calcium (Ca) and magnesium (Mg) expressed in milligrams per liter (mg/L). These details come from samples of wells in Washington County tapping aquifer 371ELBK, with five samples from two wells taken between 2011 and 2024. The median hardness measured in these samples was 231.0 mg/L, ranging from 211.0 to 343.0 mg/L. These values fall within federal standards, meaning no health-related limits were exceeded.
Considerations for Large, Second, or Seasonal Homes
For households with many residents, vacation properties, or seasonal occupancy, water use patterns and temperature variations can affect skin hydration differently. Less frequent water use in a seasonal home might mean accumulated deposits or changes in water chemistry that impact skin moisture compared to primary residences. Understanding how usage affects water hardness and skin contact can be important when evaluating dry skin complaints.
Ruling Out Causes: From Simple Checks to Lab Tests
Begin by assessing personal and environmental factors, such as detergent changes or heating effects that can dry skin. Household water testing is prudent once simpler explanations are excluded. Testing for hardness specifically requires laboratory measurement of calcium and magnesium levels. Only testing your own water will clarify its role in dry skin symptoms since regional data cover area trends, not individual wells.
Comparing Washington County Hardness Data With Neighboring Areas
Nearby regions may have differing groundwater hardness due to geological differences. For instance, if an adjacent county reports a notably lower median hardness, water-related skin effects might differ. However, overlapping ranges and sample depths should caution against assuming direct correlations between areas. Use regional data as context, not definitive proof, for your own water quality.
Symptoms Indicative of Water-Related Dry Skin
Signs that water hardness might contribute to dry skin include persistent dryness, itchiness, or irritation after showering or washing hands that does not improve with topical moisturizers. Conversely, dry skin caused by environmental factors such as low humidity or dermatological conditions usually presents differently and may involve scaling or rash beyond typical water exposure.
Reading the Data: A Homeowner’s Example
The Washington County data set shows a median hardness of 231.0 mg/L, with a range from 211.0 to 343.0 mg/L. This indicates groundwater typically has moderate to somewhat elevated hardness. While this does not confirm your own water’s profile, it suggests that hardness-related skin effects might be plausible and worth investigating further through specific testing.
What This Data Does Not Confirm
Area-wide measurements do not reveal individual well conditions or guarantee that detected hardness levels cause dry skin. No federal health-based standards were exceeded in these samples, meaning water is not deemed unsafe. Therefore, water-related dry skin should not be assumed without direct testing and symptom correlation. The Pentair Dry, Itchy Skin System ships ready to configure and targets skin irritation related to water factors, offering a direct option once your own water testing indicates hardness impacts.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2024-07-17. 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 371ELBK aquifer (Washington County): 5 results from 2 wells, median 231.0 mg/L, range 211.0-343.0 mg/L; none above any federal threshold