If you see signs of pipe corrosion or strange taste in your water
Water in Harvey County comes mainly from aquifer 112PLSC, drawn from wells between 27 and 270 feet deep. The pH of groundwater sampled in over 100 wells between 2010 and 2016 ranged widely from 5.4 to 8.8 standard units with a median of 7.0. Since pH affects water corrosivity, lower pH values near or below 6.5 can make water more acidic and potentially damaging to plumbing components over time.
This wide pH range shows that corrosive water is possible in the region. Still, your own water’s corrosivity depends on its specific pH and other characteristics, which only a targeted water test can identify.
If you are aware that water pH shifts throughout the year
Sampling in Harvey County’s 112PLSC aquifer was conducted over more than six years, capturing seasonal and multi-year variation. Although individual well results vary, about 124 results fell below a pH of 6.5. Fluctuations in groundwater pH can result from natural changes in aquifer chemistry, recharge from rainfall, and variations in well depth or location.
This means the corrosivity of water at your tap could change depending on these environmental factors. Regular testing is key to understanding how your water’s pH behaves over time and whether treatment should be adjusted accordingly.
If you notice corrosion on pipes, plumbing leaks, or metallic tastes but no discoloration
Visible signs like rust-colored stains or blue-green deposits indicate mineral issues other than pH-related corrosion. Corrosive water typically causes gradual deterioration of pipes and fixtures, leaks at joints, or unusual metallic tastes without necessarily changing water color.
Keep in mind that plumbing materials and pipe age play significant roles in how corrosive water impacts your home. Newer plastic pipes resist corrosion differently than older metal ones, so symptoms can vary widely.
If you want to determine whether your water is corrosive without assuming based on area data
Start by visually inspecting your plumbing for leaks or corrosion signs. Then test water pH with a reliable meter or test kit available for residential use. If results suggest acidic water, laboratory analysis can provide precise pH values and additional parameters that influence corrosivity.
Testing your own water rather than relying solely on regional sampling is essential because even within Harvey County, pH can differ significantly from well to well.
If you wish to understand what the government data means and does not mean
The US Geological Survey samples document that pH in Harvey County’s aquifer 112PLSC ranges from acidic to basic, with a median near neutral. The EPA secondary standard recommends pH between 6.5 and 8.5 for aesthetics and to reduce corrosion, but this is not a health safety limit.
Detection of pH below 6.5 in some samples shows the presence of acidic water but does not imply that all local water or your household water is corrosive. The secondary standard guides treatment choices for pipe longevity and water taste rather than indicating health risks.
Any decision to treat should be based on your water’s specific test results and the issues you observe.
Addressing corrosive water in your home
After confirming the corrosive nature of your water via testing and observing signs of pipe damage or water quality changes, you can consider solutions like the Autotrol Corrosive Water Damaging Pipes Filter. This system ships ready to configure and is designed to reduce water corrosivity effects by adjusting water chemistry to protect household plumbing.
Choosing treatment capacity that matches your household water use helps ensure the system performs effectively over time. Properly addressing corrosive water helps prevent plumbing deterioration and maintains water quality in your home.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2016-10-18. 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 pH in the 112PLSC aquifer (Harvey County): 1140 results from 103 wells, median 7.0 standard units, range 5.4-8.8 standard units; EPA secondary standard for pH is 6.5-8.5 (aesthetic/corrosivity, not health-based); 124 of 1140 sampled results fell below 6.5
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