Overview of Iron Sampling in Dane County's Aquifer 100SDGV
Government sampling by the U.S. Geological Survey in May 2022 collected data from seven wells within Dane County's aquifer 100SDGV. All 20 samples detected iron, with concentrations ranging from 0.0 to 21,000 mg/kg and a median concentration of 9,900 mg/kg. None of these results exceeded federal thresholds, indicating no regulatory violation was identified in this regional sampling.
Variation of Iron Levels Over Time and Sampling Dates
The sampling was conducted over two consecutive days, May 23 and 24, 2022, providing a short-term snapshot rather than a long-term trend. While this data reflects variability within wells and possibly differing depths or locations, it does not capture seasonal or multi-year changes in iron concentrations in this aquifer. Households should consider periodic testing to understand their own water's behavior over time.
Influence of Plumbing Materials and Age Independent of Source Water
Iron and rust visible in household plumbing can originate from the water source or from corroding plumbing components themselves. Older pipes made of iron or steel are prone to rust formation regardless of iron levels in source water. Conversely, newer plumbing materials may reduce visible iron staining even if source water has elevated iron. Evaluating the material and condition of pipes and fixtures can help differentiate the cause of rust discoloration at taps and appliances.
Additional Questions Relevant to Commercial or Industrial Water Users
Commercial or industrial water operators in Dane County might evaluate iron impacts differently, including system-wide equipment wear or compliance with process-specific water quality standards. They often require more detailed water profiling and treatment capacity assessment relative to operational scale. Residential concerns typically focus on staining and taste effects, while these larger users weigh operational reliability and maintenance cost implications.
Understanding 'Detected', 'Median', and 'Range' in This Sampling Record
'Detected' here means iron was measurable in all 20 samples, but detection does not imply a problem or violation. The 'median' value indicates the middle concentration of the samples collected, showing that half of the results were above 9,900 mg/kg and half below. The 'range' shows the span from the lowest reading of 0.0 to the highest of 21,000 mg/kg, reflecting variability across wells, not a single well’s level. These metrics offer a broad view of aquifer conditions, not a specific household's iron content.
Assessing Treatment Needs Relative to Household Water Demand
When considering treatment options, households need to estimate their daily water usage to match the treatment system’s capacity. The volume of water used affects how often a filter must regenerate or be maintained. Ensuring a system can handle peak usage without performance loss is essential for managing iron-related staining and rust buildup effectively within typical residential consumption.
Systematic Approach to Confirming Iron Issues Before Treatment
Start with inexpensive checks such as observing staining patterns and pipe conditions. Next, have water professionally tested for iron concentration and form (ferrous or ferric) to understand how iron behaves in the system. Laboratory tests should provide quantitative iron levels to clarify severity and inform treatment decisions. Distinguishing iron from other common water issues helps avoid unnecessary treatments.
In households with confirmed iron-related staining or rust problems consistent with regional sampling, the C-Series Orange Iron & Rust Stains Filter ships ready to configure and addresses these concerns through targeted filtration technology designed for this type of water quality challenge.
To summarize, the documented government sampling in Dane County’s aquifer 100SDGV detected iron across 20 samples with a median of 9,900 mg/kg and no federal threshold exceedances. This data serves as a useful regional reference, not an individual well test. For specific household water characterization, testing your own water remains essential. For more detailed data, consult the USGS groundwater monitoring site for this area.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2022-05-24. 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 (Dane County): 20 results from 7 wells, median 9900.0 mg/kg, range 0.0-21000.0 mg/kg; none above any federal threshold