How the C-Series Heavy Metals Filter Removes Selenium and Similar Metals
Heavy metals such as selenium can be present in groundwater. The C-Series Heavy Metals Filter uses a specialized filtration process designed to reduce concentrations of dissolved heavy metals, including selenium, in residential water supplies. This system ships ready to configure for household water systems. It does not mask contaminants but captures metals as water passes through its filtering media, helping lower the levels entering a home's taps.
Comparing Selenium in Portage County with a Neighboring County
U.S. Geological Survey data for Portage County's 100SDGV aquifer shows selenium was detected in 41 out of 42 samples from 27 wells spanning depths from 12 to 140 feet, with a median concentration of 0.15 micrograms per liter and a range from 0.04 to 0.29 micrograms per liter. No result exceeded federal health-based thresholds. When comparing this to nearby counties, note these numbers represent area sampling, not individual wells. Slightly higher or lower selenium may occur elsewhere. Differences in geology, aquifer characteristics, and sampling times affect readings.
Understanding 'Detected', 'Median', and 'Range' in Selenium Sampling
In these samples, 'detected' means selenium was measurable, not necessarily problematic. The 'median' is the middle value separating the higher half and lower half of all tested selenium levels, providing a typical concentration for the area. The 'range' shows the lowest and highest selenium measured, indicating variability between wells. One sample was below the detection limit, which means selenium was too low to measure in that test.
How Sample and Well Depth Affect Expected Selenium Levels
Wells sampled varied in depth from shallow (12 feet) to deeper (140 feet). Selenium concentrations can vary with depth because water chemistry changes within different aquifer layers. Typically, deeper wells might have different selenium levels than shallow wells due to geochemical conditions. Knowing the depth of your own well and testing that water is important to understand your household’s specific selenium level.
Potential Effects of Long-Term Exposure to Untreated Selenium
Selenium is an essential trace element but can pose risks at elevated levels. Prolonged exposure to selenium concentrations above recommended limits can cause health effects, although the samples here did not exceed such thresholds. Left untreated, selenium and other heavy metals may impact water taste or cause staining. Regular testing and treatment help maintain safe and pleasant household water quality over time.
For households concerned about heavy metals in Portage County water, especially selenium as documented by the USGS for the 100SDGV aquifer, the C-Series Heavy Metals Filter provides a ready-to-configure option to reduce these contaminants based on your own water test results.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2024-08-20. 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 Selenium in the 100SDGV aquifer (Portage County): 42 results from 27 wells, median 0.15 ug/L, range 0.04-0.29 ug/L; none above any federal threshold

