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Buy NowIf You Notice Changes in Water Taste or Appearance at Home
When your well water shows differences in taste, color, or clarity, the first step is understanding how these observations relate to water quality data gathered in your area. In Portage County, Wisconsin, groundwater samples from the aquifer 100SDGV have been collected over many years. These tests provide a regional picture, not specifics about your particular well, but they help frame what might be typical in local water.
Interpreting Regional Groundwater Sampling Results
The U.S. Geological Survey has tested 27 different wells in the 100SDGV aquifer between 2011 and 2024, collecting 59 individual samples. For the measured constituent iron, 14 samples detected it at varying levels, with the median value at 5.55 micrograms per liter and a range from 3.8 to 2860 micrograms per liter. Most samples, 45 out of 59, were below the reporting limit. These measurements cover wells ranging in depth from 12 to 140 feet.
If You Review a Certified Laboratory Test of Your Well Water
A certified lab report provides exact concentrations of detected substances in your water, including iron. Unlike area sampling records, this report will specify presence and concentration for your unique well. The lab’s detection level is key: values below it may be listed as non-detectable rather than zero. Interpreting the numbers on your report requires understanding that detection is not a violation or a safety concern by itself.
If You Wonder What Secondary Aesthetic Standards Mean for Your Water
Secondary standards for constituents like iron mainly address aesthetic issues such as staining, taste, or color rather than health risk. The regulatory thresholds for iron relate to preventing rusty stains and metallic tastes, not safety limits. It’s important to differentiate these from primary health-based limits, which do not apply here because no federal health thresholds have been exceeded in the Portage County aquifer samples.
If Your Home is Larger, a Second Property, or Used Seasonally
Water requirements and treatment needs can vary notably depending on household size and use patterns. A large household may require treatment equipment with higher capacity to maintain effectiveness over higher daily water demands. Seasonal or second homes might experience changes in water chemistry after periods of inactivity, making testing upon return advisable.
If You Compare Public Water Records to Your Private Well’s Condition
Publicly available groundwater data from government monitoring reflects regional aquifer conditions, not the specific water from your individual well. Private well water quality can differ due to depth, local geology, well construction, and maintenance. Only direct testing of your well water will reveal your home’s precise water quality, allowing for informed decisions about treatment options.
If You Want to Understand How Iron Enters Groundwater in Portage County
Iron naturally occurs in groundwater due to mineral deposits and the local geology of the 100SDGV aquifer underlying Portage County. Its concentration can vary widely even across nearby wells because of water flow, oxygen levels, and other geochemical factors. Iron is common in many regional wells but does not necessarily pose a safety risk where detected at typical levels.
Understanding the data above provides context if you observe water quality concerns at home. To address complete well water issues effectively, equipment like the Fleck Complete Well System ships ready to configure and offers a grain capacity of 32,000 to handle a wide range of water treatment needs.
This overview summarizes U.S. Geological Survey groundwater sampling results for Portage County’s aquifer 100SDGV, covering multiple wells tested between 2011 and 2024. For more detailed data, visit the government source directly.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2024-08-20. 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 Iron in the 100SDGV aquifer (Portage County): 59 results from 27 wells, median 5.55 ug/L, range 3.8-2860.0 ug/L; none above any federal threshold