What the USGS Groundwater Sampling Record Shows for Total Well Water
The U.S. Geological Survey groundwater monitoring in Virginia Beach city County's aquifer 121YRKNC includes 47 samples from 17 wells surveyed between July 13, 2010 and June 3, 2026. These wells range from 62 to 208 feet deep. The record shows a median total well water hardness of 164.5 mg/L with values ranging from 44.9 mg/L to 479.0 mg/L. None of these results exceed any federal threshold applicable to groundwater quality. This data reflects conditions across the sampled area but does not characterize any single residential well.
Consequences of Untreated Total Well Water Conditions Over Time
If total well hardness and mineral levels typical of this aquifer persist without addressing, households may experience scaling on plumbing components, reduced appliance efficiency, and altered water feel or taste depending on mineral content. Such effects develop gradually over years and do not indicate immediate health risks. Regular evaluation of water quality can help households determine when treatment measures are prudent to maintain plumbing performance.
Seasonal and Multi-Year Variability Evident in the Record
The nearly 16-year monitoring period captures natural fluctuations in groundwater hardness ranging from 44.9 mg/L to 479.0 mg/L. These variations illustrate how total dissolved minerals in the aquifer shift with changing environmental and hydrological conditions typical of coastal Virginia. Homeowners should anticipate water quality changes over time and recognize that single-point tests may not represent long-term patterns.
Interpreting the Median and Range: A Homeowner's Guide
Consider the median hardness value of 164.5 mg/L as a central tendency indicator, implying that half of the sampled results were above and half below this figure. The range from 44.9 to 479.0 mg/L shows that wells in this aquifer can produce water with significantly different hardness levels. This variability means homeowners reliant on private wells should conduct individual water testing to understand their specific water profile rather than extrapolating from regional data alone.
Comparing Virginia Beach Data with Neighboring Areas Without Overreading
While the Virginia Beach city data gives a detailed picture of aquifer 121YRKNC conditions, neighboring counties and aquifers may show different hardness patterns due to geology and water table differences. Users should avoid assuming identical water quality nearby and rely on localized sampling when available. Regional data is useful for awareness but not a substitute for site-specific analysis.
Assessing Treatment Capacity Relative to Household Water Use
The C-Series Total Well Chlorination System offers a grain capacity of 32,000 to address mineral and water quality concerns common in this aquifer. To evaluate if this system meets household demand, consider daily water use volume and the likely mineral load. Aligning treatment capacity with actual consumption ensures effective management of scaling potential and water quality stability.
Water Quality Changes at the Tap After Treatment
When the C-Series System is configured in a household water supply, it reduces mineral accumulation effects through chlorination and related processes. Treated water will typically exhibit fewer deposits in pipes and appliances. While mineral content may still be present, its impact on household plumbing and water usability is mitigated. Customers can expect maintenance of water clarity and improved operational longevity of water-using equipment.
This briefing is based on 47 groundwater samples from 17 wells at depths of 62 to 208 feet in Virginia Beach city County aquifer 121YRKNC collected from July 2010 to June 2026. For more detailed data, see the U.S. Geological Survey monitoring location 363310075594002 at waterdata.usgs.gov.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-06-03. 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 121YRKNC aquifer (Virginia Beach city County): 47 results from 17 wells, median 164.5 mg/L, range 44.9-479.0 mg/L; none above any federal threshold