How to judge treatment capacity against the household's or facility's daily demand
Calculate your household water use to match heavy metals treatment needs
Understanding how much water your household uses daily is key to selecting a treatment solution that can handle your volume without performance decline. Treatment devices are rated by gallons processed per day or flow rate, so measuring your demand helps ensure effective heavy metals removal without overburdening the system.
A worked example: reading the record's median and range as a homeowner would
Government sampling shows selenium detected in most El Paso County aquifer wells
Between 2014 and 2016, the U.S. Geological Survey sampled 25 wells in El Paso County’s 112HCBL aquifer. Selenium was measured in 23 results with a median concentration of 2.6 micrograms per liter (µg/L) and a range from 0.05 to 11.7 µg/L. This data reflects the area's groundwater but does not indicate the selenium level in your specific well. Also, no samples exceeded federal health thresholds for selenium.
Median and range data guide expectations but require personal testing
The median provides a midpoint in the sampled results, and the range shows the variation found across wells. Your well water might fall anywhere in this spectrum or outside it. A certified lab test of your home's water is essential to determine its selenium concentration and treatment needs.
What happens when this problem is left untreated for years, stated without exaggeration
Long-term exposure to elevated selenium can affect appliance performance and water quality
While federal thresholds were not exceeded in the regional samples, selenium in water above aesthetic secondary standards can contribute to taste and staining issues. Over time, heavy metals accumulation can impact household appliances, plumbing fixtures, and water-using devices, potentially causing buildup or discoloration.
What a certified laboratory test for this constituent reports and how to read it
Lab reports provide specific concentrations and reporting limits for selenium
A certified laboratory report for your water will show selenium concentration in micrograms per liter (µg/L) or parts per billion (ppb), along with the detection limit of the test. If selenium is reported below the lab's reporting limit, it means it is either not detected or present at levels too low for precise measurement.
Compare lab results against federal thresholds and secondary standards cautiously
Federal standards provide maximum contaminant levels for selenium based on health considerations. However, just detecting selenium or having concentrations below these levels does not indicate unsafe water. Use lab results to assess whether treatment is needed for aesthetic or operational concerns.
How to compare this area's record with a neighbouring county's without overreading it
Regional variations in selenium concentrations occur but do not predict individual well levels
Comparing El Paso County to adjacent regions can show differences in selenium detection or median values. While this helps understand the broader groundwater context, it should not be assumed that your water reflects neighbouring counties’ conditions. Each well is unique and must be tested independently.
Use regional data only as a guide to potential water quality issues
Government sampling provides valuable insight into what constituents may be present regionally. However, it does not replace testing your own water. Use this information to stay informed and decide on testing or treatment strategies.
Which fixtures, appliances or processes are affected first and why
Fixtures with frequent water contact may show early signs of heavy metals effects
Appliances such as dishwashers, washing machines, and water heaters, along with kitchen and bathroom faucets, often experience the earliest signs of heavy metals presence. Deposits can accumulate causing staining, buildup, or mechanical impacts over time.
Water treatment devices help protect at point of entry for whole-house coverage
Addressing heavy metals at the main water supply leads to consistent quality across all fixtures and appliances, preventing damage or aesthetic issues before they start.
Closing
After measuring your household's daily water demand and confirming selenium levels in your water with a certified lab, the C-Series Heavy Metals Filter ships ready to configure to handle typical residential flow rates and provide effective treatment for selenium and other heavy metals detected in your area. This targeted solution supports healthier water and protects your household plumbing and appliances from long-term effects.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2016-09-23. 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 112HCBL aquifer (El Paso County): 26 results from 25 wells, median 2.6 ug/L, range 0.05-11.7 ug/L; none above any federal threshold

