Are there arsenic concerns in household water in Kitsap County? Government data from multiple wells shows arsenic is detected in groundwater samples taken from the local aquifer, but it is essential to understand what this means for your home's water quality and treatment needs.
Interpreting 'Detected,' 'Median,' and 'Range' in Arsenic Sampling Data
Detected means the presence of arsenic was measured, not that levels are harmful
Out of 39 samples collected from 18 wells between March 2021 and August 2023, arsenic was detected in 29 but was below the reporting limit in 10. Detection indicates that the testing instruments found arsenic but does not imply risk or violation.
Median arsenic concentration gives a middle value of the data set
The median result was 5.3 micrograms per liter (ug/L), representing the middle concentration value in the sampled wells. Median values help summarize typical water quality but do not describe specific conditions in any single well.
Range describes the spread of arsenic concentrations found across all samples
Arsenic concentrations ranged from as low as 0.2 ug/L up to 54.5 ug/L in these area wells. This variability is typical for groundwater but no sample exceeded federal arsenic thresholds. Depths of sampled wells ranged from 16 to 27 feet.
What Changes at the Tap When Using a Pentair Arsenic Filter
Reduction of arsenic concentrations to safer levels
The Pentair Arsenic Filter is designed to treat water containing arsenic, reducing its concentration before water reaches household taps. This system ships ready to configure for connection with home water supplies.
Improved water quality in taste and appearance related to arsenic presence
Using the filter can help reduce concerns related to arsenic detection, contributing to peace of mind about water quality for drinking and other household uses.
Differences Between Public System Records and Private Well Testing
Public records reflect multiple wells sampled within an area, not individual household conditions
The arsenic data comes from a set of multiple wells in Kitsap County’s aquifer but does not indicate the arsenic level in your well specifically. Testing your own water source is necessary to know household conditions precisely.
Public water systems usually have reporting requirements and regular monitoring
Private well owners need to conduct their own water tests because public system records do not cover individual wells. This distinction is important when making treatment decisions.
Assessing Treatment Capacity for Household Water Demands
Match filter capacity to your household’s daily water use
When selecting a Pentair Arsenic Filter, consider your household’s typical water consumption to ensure the system meets daily demand. This will help maintain performance without frequent maintenance.
Plan for peak usage times and potential increased water needs
Households with varying usage patterns should evaluate capacity accordingly to maintain effective arsenic reduction consistently.
How Seasonal and Multi-Year Variations Appear in the Sampling Record
Data covers samples taken over a two-and-a-half year window
Arsenic levels in the area wells were measured from March 2021 through August 2023. This range captures short-term variability but does not predict future fluctuations.
Seasonal or year-to-year changes are part of natural groundwater behavior
Variations in aquifer conditions can cause arsenic concentrations to change over time, so ongoing monitoring is advisable where arsenic is a concern.
Additional Questions Commercial or Industrial Operators May Need to Consider
Higher water usage and regulatory requirements
Commercial users need to assess higher daily volumes and comply with applicable regulations, which differ from residential needs.
System scalability and maintenance schedules
Industrial settings require detailed planning for treatment capacity and maintenance frequency to ensure continuous arsenic control.
What You Should Not Conclude From This Area Data
The arsenic sampling results reflect the state of multiple wells in Kitsap County’s aquifer and cannot determine the arsenic concentration in your household well or tap water. Detection does not mean unsafe water, and none of the samples exceeded federal arsenic limits. To know your own water’s arsenic level, you must have it tested directly. If arsenic presence is confirmed or suspected, a Pentair Arsenic Filter can provide effective treatment, shipped ready to configure for home use.
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 Arsenic in the aquifer (Kitsap County): 39 results from 18 wells, median 5.3 ug/L, range 0.2-54.5 ug/L; none above any federal threshold
- ✓ 90-Day Money-BackNo restocking fees — return within 90 days.
- ✓ Manufacturer WarrantyGenuine Fleck · Pentair · VIQUA equipment.
- ✓ Free Expert SizingTalk to a specialist and buy the right system the first time.