Interpreting 'Detected,' 'Median,' and 'Range' in Sussex County’s Uranium-Radium Sampling
The U.S. Geological Survey sampled groundwater from 10 wells within aquifer 112CLMB across Sussex County, Delaware, between 2012 and 2014. These 20 measurements of alpha particle activity—which reflect uranium and radium presence—were all detected, meaning instruments found measurable levels in every sample. The median value was 0.8 pCi/L, with a range extending from -0.5 to 3.4 pCi/L. The negative number here indicates a measurement below detection limits rather than a true negative concentration.
Importantly, none of these results exceeded any federal regulatory thresholds designed to protect public health. The recorded range offers a broad picture of this area’s groundwater conditions but does not specify what any individual household’s well may contain.
Questions Commercial or Industrial Users Would Raise Beyond Household Considerations
Commercial and industrial operators managing larger volumes or discharges often assess uranium and radium differently, considering cumulative effects, byproducts, and regulatory compliance for processes and emissions. They generally require more frequent, comprehensive testing and may need to evaluate isotopic compositions or radionuclide decay chains that affect waste strategies. Households do not face these additional complexities and primarily focus on safe water for consumption and everyday use.
How Water Changes at the Tap When Using the C-Series Uranium & Radium System
When configured with a C-Series Uranium & Radium System, residential water undergoes a reduction of uranium and radium concentrations by targeted filtration designed for a grain capacity of 32,000. This system operates without requiring professional plumbing services and ships ready to configure. As a result, treated water at the tap reflects lower levels of alpha particle activity, improving aesthetic qualities such as clarity and taste, and providing peace of mind regarding these naturally occurring radionuclides.
Differences Between Public System Records and Private Well Testing in Establishing Water Quality
Public water systems usually maintain ongoing monitoring and must report results to regulatory agencies, focusing on compliance and health standards for large populations. Their data reflect conditions within the distribution network rather than specific source variability. Private well owners, however, bear responsibility for testing their own water to determine exact uranium and radium levels. Area sampling, such as the USGS data here, offers useful context but cannot substitute for individual well analysis.
Household Symptoms That May and May Not Indicate Uranium-Radium Concerns
Typical signs households might link to uranium or radium include unusual metallic taste, staining of plumbing fixtures, or changes in water clarity. However, these symptoms are nonspecific and can arise from various other water quality factors unrelated to radioactive contaminants. Conversely, absence of these signs does not guarantee uranium or radium levels are insignificant. Testing specific to your water supply is the only way to identify these elements confidently.
What Changes When Managing Larger Households, Second Homes, or Seasonal Properties
In larger households or facilities with higher water demand, the C-Series system’s 32,000 grain capacity supports longer intervals between maintenance cycles, helping ensure consistent uranium and radium reduction. For second homes or seasonal use, the system’s readiness to ship configured means it can be activated or paused as needed without complex setup. These factors assist in managing treatment efficiency and operational flexibility relative to property use patterns.
What You Should Not Conclude from Sussex County Area Data Alone
While area sampling by the USGS indicates detectable uranium and radium in Sussex County aquifer 112CLMB without exceeding federal thresholds, this information does not determine the condition of your household well. An individual water test is essential before deciding on treatment. Furthermore, detected alpha particle levels within the range found do not signify unsafe water by regulation. If you consider uranium-radium treatment, the documented C-Series Uranium & Radium System provides an effective technology option ready to configure for residential water improvement needs.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2014-08-20. 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 Alpha particle in the 112CLMB aquifer (Sussex County): 20 results from 10 wells, median 0.8 pCi/L, range -0.5-3.4 pCi/L; none above any federal threshold

