What does the government sampling record say about pH in Waupaca County groundwater?
The U.S. Geological Survey has sampled 14 wells in the Waupaca County 100SDGV aquifer, collecting 58 pH measurements from August 2011 through September 2024. These results range from 6.5 to 8.3 standard units, with a median of 7.4. None of the samples fell below the EPA secondary standard lower limit of 6.5.
How does pH vary seasonally or over multiple years according to this record?
The data spans over a decade, showing that pH levels in this aquifer fluctuate within a moderate range but consistently remain above the acidic threshold of 6.5. Seasonal or annual variation is evident in the range from 6.5 to 8.3, reflecting natural changes in groundwater chemistry over time and across different wells.
What are the possible consequences if acidic water remains untreated for years?
When household water has a low pH—below 6.5—it can cause increased corrosion of pipes and fixtures, potentially leading to staining, metal leaching, and shortening the lifespan of plumbing components. While none of the sampled wells here measured below 6.5, if your own water were acidic, treatment could prevent these material impacts.
How can a homeowner interpret the median and range values in this record?
The median pH of 7.4 suggests that typical groundwater in this aquifer is slightly alkaline to neutral, which generally indicates low risk for acidic water issues. The range down to 6.5 shows that some wells encounter lower pH values near the EPA’s aesthetic lower boundary, indicating some variability. Homeowners should test their own water’s pH to confirm its specific characteristics.
What does the measured pH range mean in relation to EPA secondary standards?
The EPA secondary standard for pH is 6.5 to 8.5, which guides aesthetic qualities like taste and corrosion potential but is not a health-based limit. The Waupaca County sampling found no pH values below 6.5, indicating that acidic water below this level was not detected in these wells. This means the groundwater typically meets recommended aesthetic standards but does not rule out individual well variation.
How does water treated by the Pentair Acidic / Low-pH Water Filter differ at the tap?
This system is designed to address acidic or low-pH water by adjusting pH levels toward neutral. For a household that confirms acidic water in its own testing, this filter can help reduce corrosivity and improve taste and plumbing longevity by neutralizing low pH. It ships ready to configure for straightforward home use.
How many samples and wells support these figures, and what does the sample size mean for homeowners?
The pH data comes from 58 samples collected at 14 different wells, with depths ranging from 19 to 172 feet. While this is a substantial dataset for the area, individual well water can vary widely. Homeowners should obtain certified laboratory testing of their own water to determine precise pH levels before selecting treatment.
These measurements reflect conditions in the Waupaca County 100SDGV aquifer as documented by the U.S. Geological Survey groundwater sampling. More information can be found at the USGS water data website.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2024-09-09. 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 100SDGV aquifer (Waupaca County): 58 results from 14 wells, median 7.4 standard units, range 6.5-8.3 standard units; EPA secondary standard for pH is 6.5-8.5 (aesthetic/corrosivity, not health-based); 0 of 58 sampled results fell below 6.5
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