Many homes in Kitsap County notice a subtle metallic taste or slight staining on fixtures, clues that trace to traces of copper in local aquifer water. This checklist helps households understand those signs, especially when evaluating water treatment approaches.
Changes for Larger or Seasonal Households
Heavy metals levels remain consistent regardless of household size
Copper concentrations measured by the U.S. Geological Survey come from area wells 16 to 27 feet deep. These concentrations are from 39 samples taken over more than two years and reflect the aquifer broadly rather than any single home. The size or seasonal use pattern of a household doesn’t affect the copper concentration in the source water itself.
Water use volume influences treatment system capacity needed but not contaminant level
Higher water consumption in large families or seasonal properties requires treatment systems designed for increased flow but does not change the concentration of copper entering the system.
Maintenance Rhythm of the C-Series Heavy Metals Filter
Regular media replacement keeps performance steady
The C-Series Heavy Metals Filter is designed to operate continuously and ships ready to configure for household water systems. Periodic monitoring of filter media condition and scheduled media replacement maintain effective copper reduction. The required maintenance interval depends on actual water usage rather than fixed timeframes.
System components are straightforward to check and refresh
The filter’s design allows users to verify flow rates and water quality as part of routine home maintenance, avoiding surprises and ensuring ongoing treatment reliability.
How Treated Water Differs at the Tap
Reduced copper concentration improves taste and limits fixture staining
The C-Series system targets copper removal to address metallic tastes and reduce the risk of blue-green staining on sinks and appliances. Because copper in Kitsap aquifer water has not been found above federal thresholds, treatment focuses on aesthetic improvements and minimizing potential long-term buildup.
Consistent water quality regardless of time of year
Once treated, water maintains a stable copper level throughout the year, offering peace of mind to households with variable water use patterns.
Judging Treatment Capacity Against Household Water Demand
Measure daily water use to align filter capacity with household needs
Knowing the volume of water used daily, including peak usage times, helps select the appropriate C-Series filter media quantity and replacement schedule.
Water hardness and other factors do not alter copper removal needs
Since heavy metals like copper behave independently of hardness, treatment capacity is based solely on the expected water volume and copper concentrations documented for the Kitsap aquifer.
Influence of Sample Depth and Source Type on Expectations
Copper data from wells 16 to 27 feet deep applies broadly in Kitsap County aquifer
The U.S. Geological Survey sampled 18 wells in this depth range, finding copper detected in 24 of 39 total samples with a median of 17.55 micrograms per liter and a maximum of 90 micrograms per liter. No sample exceeded any federal copper limit, underscoring that detections do not equal safety concerns.
Shallower or deeper wells may differ; personal water testing is essential
Since these samples cover a range of well depths typical for household wells, actual copper levels can vary. Testing your individual well water is necessary to determine the copper content specific to your home.
This checklist summarizes U.S. Geological Survey groundwater sampling results from Kitsap County aquifer wells collected from March 2021 through August 2023. For detailed data and updates, visit the official government source.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2023-08-01. 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 aquifer (Kitsap County): 39 results from 18 wells, median 17.55 ug/L, range 0.47-90.0 ug/L; none above any federal threshold

