Fleck Heavy Metals Filter

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1. What the Government Sampling Data Tells About Copper

The U.S. Geological Survey sampled groundwater in Marshall County's aquifer 124TLLT, collecting six copper results from three separate wells between 2011 and 2022. All samples detected copper, with concentrations ranging from 0.53 to 10.6 micrograms per liter (ug/L), and a median value of 3.2 ug/L. None of the samples exceeded any federal health-based thresholds. This data reflects conditions in the area wells sampled and does not indicate the condition of any individual well or tap.

2. Which Household Points of Use May Notice Copper First

Copper in water most often affects fixtures and appliances that use water continuously or have metal components that interact with water, such as faucets, ice makers, and water heaters. While copper at the measured levels is generally below regulatory limits, water with elevated copper concentrations can cause bluish-green staining on plumbing and fixtures over time. Appliances that rely on clean water flow may also be impacted if copper levels are high enough to contribute to deposits or taste changes.

3. How Household Size and Property Use Influence Copper Impact

Larger households or properties with multiple water-using devices may experience different exposure levels due to overall water volume and usage patterns. Seasonal or second homes with extended periods of inactivity might see copper leaching from pipes during stagnation, potentially altering water quality temporarily. Understanding usage patterns helps in assessing if additional water treatment could be beneficial to manage copper exposure effectively.

4. The Role of Well and Sample Depth in Water Quality Expectations

The sampled wells in this data set were between 33 and 38 feet deep. Well depth and the type of water source influence metal concentrations, as shallower wells may be more affected by surface conditions and local geology. Deeper wells often have different water composition profiles. Knowing your own well's depth and source type can help clarify if area sampling data aligns with your water conditions.

5. What to Expect from a Certified Laboratory Copper Test

A certified laboratory test for copper typically reports results in micrograms per liter (ug/L) or parts per billion (ppb). Such a test will show the exact amount of copper in your water, distinguishing your situation from area-wide data. The lab report may also include detection limits and comparison values. Interpreting these requires understanding that detections alone do not signal safety concerns; results below the federal action levels are considered compliant.

6. Applying Area Data: Interpreting the Median and Range for Your Household

Using the Marshall County groundwater data, the median copper concentration is 3.2 ug/L with a range up to 10.6 ug/L. This means half the samples measured less than 3.2 ug/L, and the highest measured concentration was 10.6 ug/L. If your own water test shows copper levels within this range, your water is within the typical area variation. Should you find levels near or above this range, considering treatment options is advisable.

For households seeking to manage copper and other heavy metals in their water, the Fleck Heavy Metals Filter ships ready to configure and can help reduce metal concentration effectively when matched to measured demand.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2022-06-02. 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 Copper in the 124TLLT aquifer (Marshall County): 6 results from 3 wells, median 3.2 ug/L, range 0.53-10.6 ug/L; none above any federal threshold