When your household water treatment equipment fails to control heavy metals, understanding the actual water quality can be confusing. Laboratory test reports for selenium, a heavy metal measured in Connecticut's aquifer 112DFSF (FIPS 140), list concentrations found in water samples from this area. These reports typically show measured values in micrograms per liter (ug/L) with terms like 'detected,' 'median,' and 'range' indicating the distribution of measurements across sampled wells.
Myth: Plumbing Materials or Age Are the Main Sources of Heavy Metals in Household Water
While older plumbing materials can sometimes contribute metals to water, the selenium measurements described in this region's groundwater sampling come from wells 32 to 75 feet deep and reflect the source water itself, not pipe corrosion or plumbing conditions. Plumbing can influence some water quality aspects, but selenium presence here is primarily associated with the natural groundwater characteristics rather than household plumbing.
Myth: When Selenium Is 'Detected,' It Means the Water Is Unsafe
In the FIPS 140 area, U.S. Geological Survey sampling detected selenium in five results from four separate wells, with a median concentration of 0.12 ug/L and a range from 0.09 to 0.3 ug/L. Importantly, none of these levels exceeded any federal health-based thresholds. 'Detected' simply means the presence was measurable; it does not imply a regulatory violation or that the water is unsafe to use.
Myth: Heavy Metals Enter Household Water Only Through Plumbing or Surface Sources
In this Connecticut aquifer, selenium reaches groundwater naturally through geological processes over time. The aquifer 112DFSF's chemistry reflects minerals and elements present in the soil and rock layers through which water percolates, rather than contamination from surface sources or typical household plumbing interactions.
Myth: Household Size or Seasonal Use Does Not Affect Heavy Metal Concerns
Large households or seasonal homes that rely on the same water source may experience differing water quality dynamics due to usage patterns. Reduced water flow or stagnation during periods of low use could slightly influence how metals interact with pipes or accumulate, but the groundwater selenium baseline remains consistent with the area sampling data. Testing your own water is essential to understand your home's specific conditions.
Myth: Adjacent Counties’ Selenium Records Can Be Directly Compared to This Area's Data
Comparing selenium levels across counties must consider local geology, aquifer depth, and well characteristics. Neighboring counties may have higher or lower selenium concentrations based on these factors, so it is inappropriate to infer your water quality solely by proximity. The detailed sampling for aquifer 112DFSF in FIPS 140 provides a focused regional snapshot that should guide your understanding and decisions.
For households facing heavy metal treatment system failure, knowing what the regional water quality data shows can clarify next steps. Testing your own water is necessary to determine your specific selenium levels, and solutions like the C-Series Heavy Metals Filter are designed to reduce metals where needed. This page helps distinguish between what the local groundwater record reports and what individual conditions require.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2017-09-07. 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 112DFSF aquifer (FIPS 140): 5 results from 4 wells, median 0.12 ug/L, range 0.09-0.3 ug/L; none above any federal threshold