What Regional Data Tells You and What It Does Not
Government records from the U.S. Geological Survey document copper concentrations in seven wells within Graham County's aquifer N100BSNRGB. Sampling from 2010 to 2014 found copper detected in about half the results, with values ranging from none detected up to 3.9 micrograms per liter. None of these samples exceeded federal thresholds for copper, indicating no regional violations recorded at these depths and locations.
However, these findings represent area-wide data, not the specific water from your household well or tap. Your water's copper level may differ due to plumbing, well construction, depth, or localized geology. Therefore, while the data provides context, it cannot define your home's water quality without direct testing.
Steps to Identify Your Household’s Copper Levels
Start by collecting information on your water's appearance and taste, and monitor for stains on fixtures or laundry, which can suggest elevated metals. If concerns persist, request a water quality test focused on copper and related metals through a certified laboratory. This test is the most accurate method to determine severity in your household water.
Considering Well Depth and Water Source Type
The USGS sampling covered wells ranging from 83 to 1200 feet deep. Copper concentrations can vary with depth due to mineral deposits and water chemistry changes. Shallow wells might have different metal profiles than deep aquifers. Additionally, wells vs. municipal supply sources affect water composition, as municipal systems often blend multiple sources and treat water before distribution.
What You Should Document Before Choosing Treatment
Note your household’s daily water usage to match treatment capacity appropriately. Record your water source type, well details (if applicable), plumbing materials, and any visible water quality issues. Having these details ready helps in selecting a treatment option tailored to your needs.
Potential Effects of Untreated Copper Over Time
Elevated copper levels can cause metallic taste and stain plumbing fixtures or laundry. In rare cases where concentrations are very high, copper may pose health risks over long-term exposure. Since the regional sampling shows no federal exceedances, the likelihood of hazardous copper levels is low, but monitoring and testing remain important to safeguard household water quality.
The Fleck Heavy Metals Filter ships ready to configure and is designed to address heavy metal removal based on your household’s measured water demand. After confirming your copper levels, this system can help reduce metals and improve your water quality effectively.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2014-11-20. 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 Copper in the N100BSNRGB aquifer (Graham County): 29 results from 7 wells, median 0.0 ug/L, range 0.0-3.9 ug/L; none above any federal threshold