Government Sampling vs. Private Well Testing
The U.S. Geological Survey conducted groundwater sampling within Pottawatomie County, focusing on an aquifer designated 310WLNG. This sampling comprises 22 nitrate results from 11 wells ranging in depth from 80 to 220 feet, collected between June 2012 and May 2013. These results present a median nitrate concentration of 0.9035 mg/L with detected levels ranging from 0.047 to 4.25 mg/L. It is important to note that these findings summarize conditions in the sampled area aquifer and do not reflect the condition of any individual household well. Private well owners must perform their own water tests to determine specific nitrate levels as local variations can occur widely within the aquifer.
Seasonal and Multi-Year Variability in Nitrate Data
The samples were gathered over an 11-month period, capturing some temporal variability in nitrate concentrations in the area aquifer. The range observed—0.047 to 4.25 mg/L—demonstrates how nitrate levels can fluctuate within a single year and among different wells. While these results do not indicate any federal exceedances, they underline the importance of understanding that nitrate concentrations can vary seasonally or annually, influenced by factors such as agricultural runoff or geological conditions in Pottawatomie County.
Differences in Water at the Tap After Treatment
For households weighing treatment options to reduce nitrate, water quality at the tap post-treatment can differ significantly depending on the technology selected. Using the Pentair Nitrate & Nitrite (Well) Filter, treated water typically shows markedly reduced nitrate and nitrite levels, enhancing water suitability for drinking and cooking purposes. This treatment mechanism is designed to address nitrate specifically, ensuring that water delivered through household plumbing reflects lower nitrate concentrations compared to untreated well water in the same aquifer.
How the Documented Treatment Technology Works
The Pentair Nitrate & Nitrite (Well) Filter reduces nitrate concentrations using a specialized filtration process engineered for well water applications. This system employs ion-exchange or similar selective filtration methods, which target nitrate and nitrite ions, capturing them during water passage through the filter media. This treatment does not add chemicals but physically removes these constituents, making it a direct approach to managing nitrate levels in residential water systems sourced from groundwater like aquifer 310WLNG.
Laboratory Testing of Nitrate in Private Wells
A certified laboratory test for nitrate measures the concentration of nitrate (as mg/L) in water samples. Results typically include a numeric value alongside a reporting limit. In Pottawatomie County, reported nitrate results included both detected and below-reporting-limit samples within the studied wells. When interpreting test reports for your well, a result above the laboratory’s reporting limit means nitrate was quantified, but this is not itself indicative of a safety concern or regulatory violation. Only a comparison to health-based standards by professionals can inform decisions about treatment needs.
Final Considerations: The data from government sampling in Pottawatomie County's aquifer reveal nitrate presence well below any federal health threshold at the times and locations sampled. However, this information does not provide a definitive picture of nitrate levels in any specific household well. Homeowners should not assume their well’s nitrate concentration mirrors area medians or ranges. Independent water testing for the specific well is essential before selecting a treatment approach. The Pentair Nitrate & Nitrite (Well) Filter ships ready to configure and offers a targeted method to reduce nitrate once testing indicates a need for such treatment.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2013-05-01. 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 Nitrate in the 310WLNG aquifer (Pottawatomie County): 22 results from 11 wells, median 0.9035 mg/L, range 0.047-4.25 mg/L; none above any federal threshold
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