Government water sampling in Grafton County, specifically for aquifer 112SRFD, found calcium and magnesium hardness levels detected consistently across three separate wells, with a median of 82.7 mg/L and a range from 31.1 to 129.0 mg/L. These measurements were taken between June and July 2017. No levels exceeded federal thresholds, indicating compliance with safety standards.
What Does a Certified Laboratory Test Report About Hardness and How Should You Interpret It?
A laboratory test measuring hardness reports the combined concentration of calcium and magnesium ions expressed in milligrams per liter (mg/L). For homeowners, understanding these results helps identify if water minerals might be contributing to dry skin symptoms. A value reported as "detected" means the instrument measured these minerals; it does not imply a violation or unsafe condition. The lab will also provide a range or median if multiple samples are tested, helping to place individual results into context.
How Does the Record Show Seasonal or Multi-Year Variation in Hardness Levels?
The government samples for Grafton County aquifer 112SRFD were collected in mid-2017, showing a range from 31.1 up to 129.0 mg/L of hardness. This spread reflects variation between wells rather than seasonal changes, as samples were taken over about one month. Additional government data over multiple years would reveal how these values fluctuate with time. For now, this range suggests that water hardness in the area can vary considerably but remains below federal concern levels.
Which Fixtures or Household Processes Are Affected First by Hardness Related to Dry Skin?
Fixtures such as showerheads and faucets often reveal effects of harder water first. Hardness minerals can reduce soap's ability to rinse cleanly, leaving residues that dry and irritate skin. Bathing and handwashing are the household processes most directly affected, as minerals interfere with water’s interaction with skin oils. Awareness of these impacts can help homeowners decide whether to evaluate treatment options to alleviate dry skin.
What Additional Questions Might a Commercial Operator Consider Beyond Household Concerns?
Commercial operators might ask about water volume usage, scaling effects on equipment, or compliance with industrial water standards. They may also assess water treatment effectiveness in larger systems. Households generally focus on skin health, but commercial users require a broader view of water quality impacts on machinery and operations.
How Can a Homeowner Read the Median and Range Reported in This Area's Record?
Interpreting the median hardness of 82.7 mg/L means half of the tested wells have values below and half above this concentration, giving a central tendency of mineral content in the area. The range from 31.1 to 129.0 mg/L indicates the lowest and highest levels found among the three sampled wells. This suggests that your own home's water hardness could fall anywhere within this spectrum. Testing your water specifically will confirm your personal level.
These samples were taken from wells 73 to 174 feet deep and reflect measurements from three wells in Grafton County’s aquifer 112SRFD only. To understand your home's water precisely, conduct a certified laboratory test on your water supply. For addressing dry skin potentially linked to water hardness, systems like the Pentair Dry, Itchy Skin System ship ready to configure and use technology specifically documented to assist with these issues.
For more details, visit the U.S. Geological Survey water data site for Grafton County aquifer 112SRFD.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2017-07-18. 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 112SRFD aquifer (Grafton County): 3 results from 3 wells, median 82.7 mg/L, range 31.1-129.0 mg/L; none above any federal threshold
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