The U.S. Geological Survey groundwater sampling in Webster Parish, Louisiana, aquifer 124SPRT, found barium detected in all eight samples collected from seven wells between June 2012 and July 2014. These results show values ranging from 48.3 to 224.0 micrograms per liter (ug/L) with a median of 89.75 ug/L. None of these measurements exceeded any federal health-based thresholds.

1. How Public-System Records Differ from Private-Well Testing in What They Establish

The government record reports area-wide groundwater concentrations from sampling multiple wells, not the specific chemical content of your household well water. Public-system data represent conditions in the regional aquifer, showing what has been measured in that general geographic and hydrogeologic context. A private-well test is required to establish a home's individual water quality precisely, including the presence and concentration of heavy metals like barium.

2. What Questions a Commercial or Industrial Operator Adds That a Household Does Not

While residential water users focus primarily on health effects and appliance impact, commercial and industrial users often need additional information such as compliance with discharge permits, detailed chemical speciation, and treatment capacity related to specific process requirements. Households generally prioritize reducing heavy metals to prevent staining, taste issues, and appliance wear rather than industrial process concerns.

3. How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means

The data come from eight samples taken from seven separate wells, with depths ranging between 80 and 640 feet, over a two-year period. This relatively small number of samples provides a snapshot of the aquifer quality but may not capture variability at all locations or depths. Data from a few wells can inform expectations but cannot replace direct testing of individual household wells.

4. A Worked Example: Reading the Record's Median and Range as a Homeowner Would

The median barium concentration of 89.75 ug/L means half of the samples measured less than this value and half measured more. The range indicates the lowest detection was 48.3 ug/L, and the highest was 224.0 ug/L. As no federal health limits were exceeded, these detections indicate measurable barium presence but not unsafe levels. Homeowners should interpret these figures as general guidance about local aquifer conditions rather than precise predictions for their water.

5. What 'Detected', 'Median' and 'Range' Mean in the Sampling Record on This Page

• Detected means that the measurement instrument recorded the constituent present above the reporting limit, but this does not suggest a violation or safety concern.
• Median is the middle value in the ordered set of sample results, giving a central tendency of those results within the area.
• Range shows the span from the lowest to highest value detected among the samples, indicating variability in the aquifer.

6. How the Constituent Enters Groundwater or the Distribution System in This Region

Barium naturally occurs in soil and rock minerals and can dissolve into groundwater over time through natural geochemical processes. In Webster Parish’s aquifer 124SPRT, the barium levels measured likely reflect local geology rather than human contamination. This background presence means some households drawing from this aquifer can expect barium to be present in their well water in varying concentrations.

Residents concerned about barium or other heavy metals can obtain a detailed test of their household water. For those seeking treatment solutions to reduce heavy metals in their water, the C-Series Heavy Metals Filter ships ready to configure and is designed to reduce these constituents effectively. Such equipment can help manage concerns with taste, staining, or appliance longevity related to heavy metals.

This briefing is based on the U.S. Geological Survey groundwater sampling from Webster Parish, aquifer 124SPRT, reflecting eight samples from seven separate wells, sampled from 2012 to 2014. For full details and updates, consult the official government source at https://waterdata.usgs.gov/monitoring-location/330107093283801/.

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 Barium in the 124SPRT aquifer (Webster Parish): 8 results from 7 wells, median 89.75 ug/L, range 48.3-224.0 ug/L; none above any federal threshold