Understanding 'Detected,' 'Median,' and 'Range' in Webster Parish Sampling Records
The U.S. Geological Survey collected groundwater samples from Webster Parish's aquifer 124SPRT, testing for uranium concentrations. In this dataset, 'detected' indicates that uranium was measured at or above the instrument's detection limit in some wells, while 'below the reporting limit' means the instrument did not measure a quantifiable amount. The 'median' value of 0.0065 micrograms per liter (µg/L) represents the middle value among detected concentrations, and the 'range' from 0.005 to 0.08 µg/L describes the span of measured uranium levels across sampled wells.
How Certified Laboratory Tests Report Uranium in Residential Well Water
A certified laboratory test report for uranium typically lists the concentration in micrograms per liter (µg/L) or parts per billion (ppb), along with detection limits and analytical methods used. Reading such a report involves checking whether uranium was detected, the concentration relative to any advisory or regulatory benchmarks, and the confidence intervals or quality control data provided. This helps homeowners understand their specific water quality relative to regional findings.
Additional Considerations for Commercial and Industrial Water Users
Commercial or industrial operations often require more detailed testing beyond residential needs, such as continuous monitoring or assessments of radionuclide decay products. They may also need verification for compliance with occupational safety standards or discharge permits. Households generally focus on health-based guidelines and any impact on daily water use without these regulatory complexities.
Recognizing Household Water Quality Concerns Related to Uranium-Radium
Symptoms that may prompt concern about uranium and radium include unusual water taste or staining linked to mineral content, though these are not definitive indicators of radionuclide presence. Since uranium and radium themselves are taste- and odorless, the only reliable way to know is through laboratory testing of the household water supply. Routine testing is recommended if groundwater sources are used, especially from wells within aquifers documented to contain detectable uranium.
Interpreting Webster Parish's Uranium Levels Against Federal Standards
The uranium concentrations found in sampled wells within aquifer 124SPRT do not exceed any federal thresholds for safe drinking water. These thresholds set limits for uranium based on health considerations and define maximum contaminant levels, which protect consumers from potential risks. The data shows uranium ranged up to 0.08 µg/L, far below the regulatory maximum. However, regional sampling does not replace testing of an individual household’s water to confirm specific conditions.
Influence of Sample and Well Depth on Uranium Detection Expectations
The sampled wells ranged from 80 to 640 feet deep, a factor that influences uranium presence. Generally, deeper wells may encounter different geological strata with varying uranium content. Understanding well depth and source type helps homeowners assess the likelihood of uranium being part of their water profile, guiding decisions about testing and treatment needs.
These groundwater samples represent measurements from multiple wells in Webster Parish’s aquifer 124SPRT over a two-year span, offering a broad view of uranium presence in this area. For detailed information, visit the U.S. Geological Survey groundwater monitoring site for Webster Parish.
When considering treatment options, the Pentair Uranium & Radium System ships ready to configure and is designed to reduce uranium and radium levels effectively for residential use. It features a grain capacity of 32,000, supporting typical household water demands.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2014-07-28. 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 Uranium in the 124SPRT aquifer (Webster Parish): 8 results from 7 wells, median 0.0065 ug/L, range 0.005-0.08 ug/L; none above any federal threshold