If you notice corrosion or pitting on your household plumbing fixtures or pipe surfaces, this can be an indication of corrosive water potentially coming from your local groundwater source. In Kitsap County, many residential water supplies come from aquifers sampled by the U.S. Geological Survey at depths ranging from 12 to 50 feet. Understanding how these depths influence water characteristics helps determine what to expect from your well water.
If you know your water source is a shallow to moderate-depth well, about 12 to 50 feet deep
Water samples from 40 separate wells in Kitsap County aquifers showed chloride detected in all 149 results taken over 2010 to 2021. The median chloride concentration was 25.1 mg/L, with some wells showing much higher levels up to 13,300 mg/L. While chloride presence itself doesn't confirm corrosive water, higher chloride can increase water’s tendency to corrode metal plumbing.
Since sampled wells were relatively shallow, water chemistry may fluctuate more than from deeper sources, influencing corrosivity. Testing your own source directly is essential to know your water’s precise characteristics, including pH and dissolved solids, which affect corrosion potential.
If you want to reduce or neutralize corrosive effects in your household plumbing
The Pentair Corrosive Water Damaging Pipes Filter is designed to address water that damages pipes by reducing corrosive elements and stabilizing water chemistry. It uses specialized filtration media to manage constituents that accelerate corrosion, protecting your plumbing system from further damage. This system ships ready to configure with your water line without external fitting support.
If your household fixtures, appliances, or water-using processes show signs of early corrosion
Fixtures such as faucets, showerheads, and visible pipe sections often display corrosion first due to direct water contact and metal exposure. Appliances that use water, like water heaters and dishwashers, may also exhibit premature wear or leaks caused by corrosive conditions. Addressing corrosive water early helps preserve function and extend equipment life.
If you plan to seek advice or consider treatment options for corrosive water
- Record your water source type and depth, if known.
- Obtain recent water quality analysis results, focusing on chloride, pH, total dissolved solids, and any corrosion indicators.
- Note any visible signs of corrosion in plumbing or appliances and the specific locations affected.
These details help ensure relevant, accurate recommendations tailored to your household’s conditions.
If you are a commercial or industrial user thinking about corrosive water impacts
While this page targets residential situations, commercial and industrial users often require larger capacity solutions and may face different usage patterns that affect treatment system selection and maintenance schedules. Their questions often include operational continuity, regulatory compliance, and scalability concerns beyond typical household needs.
Closing: What you should NOT conclude from Kitsap County area data alone
Government sampling reflects conditions across many wells, not your individual water supply. Detection of chloride in local wells is common but does not automatically mean your water is corrosive or unsafe. The presence of chloride above a secondary aesthetic threshold affects taste or staining; it is not a health violation or safety issue. Only detailed testing of your own water source can establish corrosivity and the need for treatment. Avoid assuming area data reflects your household water specifically.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2021-05-26. 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 Chloride in the aquifer (Kitsap County): 149 results from 40 wells, median 25.1 mg/L, range 2.67-13300.0 mg/L; 19 above an AESTHETIC secondary standard only (secondary standard 250.0 mg/L (aesthetic)) - not a health finding