How Seasonal or Multi-Year Variation Shows in the Record
The available data for Garrett County’s aquifer 341HMPR comes from seven groundwater samples taken between March 16, 2010, and June 14, 2016. These samples, collected from wells ranging in depth from 80 to 603 feet, reveal a range in combined calcium and magnesium levels from 9.91 mg/L to 125.0 mg/L, with a median value of 62.6 mg/L. This spread over approximately six years indicates that natural fluctuations in mineral content occur but remain within a moderate range for the area.
Why Aesthetic Secondary Standards Differ from Health-Based Limits, Applied to This Constituent
Calcium and magnesium levels in water relate primarily to aesthetic secondary standards rather than health-based regulatory limits. Secondary standards address factors like taste, hardness, and potential for skin irritation or dryness rather than safety. The samples from Garrett County’s aquifer showed no results exceeding any federal threshold. This means while calcium and magnesium are detected, their presence is not a violation or considered unsafe based on health regulations.
The Role of Plumbing Material and Age, Separate from the Source Water
Household plumbing can influence the feel of your water independently of its source. Older pipes or certain materials may interact with mineral content, affecting water softness or hardness by the time it reaches taps. This interaction can exacerbate perceptions of dryness or skin irritation. Therefore, understanding your plumbing system’s composition and condition is important when evaluating how water may affect skin.
How to Judge Treatment Capacity Against the Household’s or Facility’s Daily Demand
When considering technical approaches to addressing dry skin linked to water mineral content, your household demand is a critical factor. Treatment systems must be selected to handle your daily water usage volume efficiently without compromising mineral reduction. Properly matched capacity ensures consistent water quality that supports skin comfort while maintaining system performance.
A Worked Example: Reading the Record’s Median and Range as a Homeowner Would
Consider the median level of calcium plus magnesium detected—62.6 mg/L—as a typical reference point for Garrett County water hardness. If your own water test falls near this median, it reflects moderate mineral content common in the area. The range reaching up to 125.0 mg/L suggests variability, so testing your household’s water directly is essential to understand your specific conditions rather than relying on area-wide data alone.
What the Measured Range Means Against the Relevant Federal Standard, and What It Does Not Mean
None of the seven sampled wells in Garrett County exceeded federal limits for calcium and magnesium. This confirms that the mineral presence is within acceptable regulatory levels considering health effects. However, detecting these minerals does not automatically indicate they are causing dry skin or other issues. Other factors, including personal skin sensitivity and home plumbing, influence dryness. Testing your water is the only way to precisely identify your home's mineral content.
To address dry skin concerns linked to water mineral content, the Fleck Dry, Itchy Skin System offers targeted reduction of calcium and magnesium. This system ships ready to configure for residential use and can help manage water qualities that may contribute to skin dryness.
In summary, Garrett County’s groundwater mineral levels vary but remain within federal guidelines. Deciding on treatment involves testing your household's water and matching system capacity to your daily needs. The Fleck System provides a documented technical option to support skin comfort by managing relevant water characteristics.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2016-06-14. 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 341HMPR aquifer (Garrett County): 7 results from 7 wells, median 62.6 mg/L, range 9.91-125.0 mg/L; none above any federal threshold

