Seasonal and Multi-Year Variation in Regional Water Data
Sampling Dates and Range in James City County Aquifer 110QRNR
The U.S. Geological Survey collected groundwater samples from the James City County aquifer 110QRNR wells over a three-day period from November 20 to November 22, 2017. These 13 samples, representing different wells between 7 and 29 feet deep, show a wide range of measured calcium and magnesium concentrations related to water hardness, from as low as 20.4 mg/L to as high as 1120.0 mg/L. This variation indicates seasonal or well-specific differences in mineral presence but does not specify individual home water quality.
Data Reflects Regional Aquifer Conditions, Not Individual Wells
It is important to understand that these figures describe the aquifer area broadly and do not indicate the exact mineral levels in your well or tap water. To pinpoint your home's water characteristics, a separate certified laboratory test is needed.
Household Symptoms Related to Water Quality and Dry Skin
Dry, Itchy Skin May Relate to Mineral Content, but Could Have Other Causes
While hard water minerals such as calcium and magnesium can sometimes contribute to dry skin conditions, other factors like weather, soap type, or underlying skin health issues can also play significant roles. Observing dry skin in your household does not alone confirm water mineral levels as the cause.
Other Household Effects Not Confirmed Symptoms of This Problem
Stains on fixtures or soap scum accumulation can also hint at mineral content but do not directly diagnose dry skin causes. These effects vary widely even within regions like James City County due to well depth, water flow, and treatment history.
Information to Collect Before Seeking Treatment Guidance
Document Your Current Water Equipment Status and Changes
Note that your existing water equipment has failed or is not providing the expected results. Record when the equipment was last functioning properly and the symptoms that prompted concern.
Record Observed Skin Conditions and Household Water Usage Habits
Jot down details about when dry skin symptoms appear, whether all household members are affected, and any changes in bathing products or routines. Also include any water usage adjustments.
Additional Questions Relevant for Commercial or Industrial Operators
Water Volume and Process Impact Questions
Commercial users should consider how variations in hardness affect larger volume water uses and operational efficiency. This includes timing of variation and treatment capacity needs.
Regulatory and Compliance Considerations
Operators may need to address compliance criteria that differ from residential concerns, including documentation of water quality over time and effect on equipment lifespan.
Certified Laboratory Testing of Hardness Constituents
What a Lab Test Reports
A certified laboratory test for calcium and magnesium hardness will provide concentrations in mg/L specific to your water source. This is the only way to accurately determine if your household water mineral levels correspond with the regional data from James City County aquifer 110QRNR.
How to Interpret the Results
Lab results compared to area data help identify if your water is consistent with typical regional ranges or shows unusually high or low mineral content potentially linked to skin dryness.
Next Step: Order a Certified Water Test for Hardness
To resolve dry skin questions linked to water mineral content definitively, order a certified laboratory test measuring calcium and magnesium hardness for your household water. If hardness is elevated compared to regional medians, consider the Pentair Dry, Itchy Skin System, a water treatment solution designed to address effects related to mineral content and improve skin comfort. This system ships ready to configure for your home water supply.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2017-11-22. 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 110QRNR aquifer (James City County): 13 results from 13 wells, median 496.0 mg/L, range 20.4-1120.0 mg/L; none above any federal threshold
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