Understanding Seasonal and Multi-Year Variation in Aquifer Data
Sampling Timeframe and Range
Government monitoring of Richmond County’s aquifer 125DBLNL collected 13 samples from a single well depth of 120 feet, spanning 2011 to 2025.
Observed Concentration Variations
The median concentration of calcium and magnesium was 3.38 mg/L, with values ranging from 2.91 to 4.13 mg/L over the sampling period.
Implications of Variation for Sensitive Skin
Although the variations are noted, they remain within consistent ranges that rarely fluctuate drastically year to year.
Recognizing Household Symptoms Related and Unrelated to Water Quality
Symptoms That May Point to Water Constituents
Visible skin irritation or increased dryness after water contact might be linked to certain minerals or water quality factors affecting sensitive skin.
Symptoms Unlikely Caused by General Aquifer Water Quality
Preexisting equipment performing adequately yet unable to fully prevent irritation suggests additional factors beyond the limited mineral variation detected.
Non-Water Related Causes to Consider
Personal skincare products, environmental allergens, or unrelated dermatological conditions can also contribute to sensitive skin.
What the Measured Aquifer Ranges Mean in Federal Context
Federal Thresholds and Sampling Results
None of the tested samples exceeded federal thresholds for these constituents in Richmond County’s aquifer 125DBLNL.
Interpreting 'Detection' Versus Harm
Detection indicates presence but not a health risk or violation; all ranges found are typical and do not represent unsafe conditions.
Limits of Area-Wide Data
Area sampling informs about regional trends only; individual well water may differ and requires specific analysis to understand personal exposure.
How to Understand Certified Laboratory Test Reports
What a Test Will Report
Certified labs provide numeric concentrations of calcium, magnesium, and overall hardness in mg/L specific to your water source.
Reading Your Test Results
Compare your numbers to local median values and federal guidelines to assess whether mineral levels fall within common regional ranges.
Why Testing is Crucial
Only a certified test of your own water can reveal whether your household water contains elements at levels that may aggravate sensitive skin.
Fixtures and Appliances Most Impacted by Water Quality Affecting Skin
Shower and Bath Fixtures
Water contact through showers and baths is the primary exposure route for sensitive skin concerns.
Clothing and Towel Interactions
Residues from water minerals on fabrics can contribute to irritation after washing and drying cycles.
Hot Water Temperature and Exposure Duration
Higher temperatures and longer exposure times may exacerbate skin reactions even if mineral concentrations are moderate.
Details to Record Before Seeking Treatment Solutions
Water Source and Well Depth
Note the depth of your water source and if it corresponds to typical regional well depths around 120 feet.
Current Equipment Performance
Document what equipment you use and how it falls short in managing sensitive skin symptoms.
Recent Water Test Results
Include any certified laboratory reports you have that show calcium, magnesium, or hardness levels.
To definitively address sensitive skin reactions possibly related to water quality in Richmond County, order a certified laboratory test of your household water focusing on calcium and magnesium concentrations. Results showing levels above the median regional range may indicate benefit from the Pentair Sensitive Skin & Eczema System, a 32,000-grain capacity solution that ships ready to configure specifically for sensitive skin concerns.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2025-07-07. 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 125DBLNL aquifer (Richmond County): 13 results from 1 wells, median 3.38 mg/L, range 2.91-4.13 mg/L; none above any federal threshold

