What does the uranium sampling record for Greene County aquifer 112OTSH show?
The U.S. Geological Survey collected groundwater samples from 10 separate wells in Greene County's aquifer 112OTSH between November 2010 and October 2020. These wells, ranging in depth from 11 to 100 feet, were tested for uranium concentration. Out of 12 results, uranium was detected in 11, with measured levels varying from 0.253 to 1.36 micrograms per liter (µg/L), and a median value of 0.719 µg/L. Notably, none of these measurements exceeded any federal uranium thresholds.
How does the depth of wells sampled affect what to expect about uranium levels?
The sampled wells span a wide depth range, from shallower wells at 11 feet to deeper ones around 100 feet. Uranium concentrations can vary with well depth because uranium presence in groundwater often depends on geological formations that interact differently at various depths. Shallow wells might reflect surface influences more, while deeper wells can tap into different rock strata that may have higher uranium content. For residents, the depth of their own well will influence the likely uranium levels, so knowing well depth is important when considering potential uranium presence.
Do uranium levels in these samples fluctuate over time or seasonally?
The sampling data collected over approximately a decade, from late 2010 to late 2020, show a range of uranium concentrations with some variation but no clear seasonal pattern indicated in the record. This suggests uranium levels in the Greene County aquifer 112OTSH fluctuate within a certain range over multiple years rather than sharply changing with seasons. However, individual wells could behave differently, and ongoing monitoring is necessary to understand local variability.
What significance does the number of samples and wells have in interpreting uranium data?
The reported measurements come from 12 samples across 10 wells, which provides a modest dataset for the area aquifer. While helpful in understanding general uranium conditions in Greene County aquifer 112OTSH, the relatively small number of wells and samples means this data represents a snapshot rather than an exhaustive survey. Local conditions might differ, and individual household well testing is essential to determine actual uranium concentrations for a specific home.
How do secondary aesthetic standards for uranium differ from health-based limits?
It's important to distinguish that while uranium has federally established health-based thresholds for drinking water, there are also secondary standards related to aesthetic factors such as taste, staining, or corrosivity. The government sampling records do not classify any uranium detection here as a violation or unsafe concentration. Exceeding aesthetic secondary standards does not indicate a health risk but may signal water characteristics that some homeowners find undesirable. For uranium, the focus remains on health-based limits, none of which were exceeded in Greene County's sampled wells.
Why is local private well testing critical, and how does it compare to public water system records?
Public water systems usually conduct frequent testing and maintain records that affirm compliance with federal standards, providing reliable data for those customers. Private wells, however, are the homeowner's responsibility to test and monitor. Government sampling in Greene County aquifer 112OTSH offers area-level insight but cannot confirm the uranium level in any one household well. Because uranium presence can vary significantly even within the same aquifer, private well owners should have their water tested to understand their specific situation rather than rely solely on regional or public system data.
What role does plumbing material and age play in uranium levels separate from source water?
Uranium is a naturally occurring element typically found in source water, not introduced or affected by plumbing materials or age. While the quality of pipes and fixtures can influence certain water characteristics, they do not alter uranium content. Therefore, concerns about uranium in household water relate primarily to the source water quality rather than the home's internal plumbing.
What treatment option addresses uranium and radium in household water?
For homes with confirmed uranium or radium presence in their water supply, the C-Series Uranium & Radium System offers a specialized solution. Designed to handle a capacity up to 32,000 grains, this system ships ready to configure to target uranium and radium reduction. Identifying the uranium concentration through testing will guide the appropriate demand sizing to ensure effective water quality treatment tailored to the household's needs.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2020-10-20. 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 Uranium in the 112OTSH aquifer (Greene County): 12 results from 10 wells, median 0.719 ug/L, range 0.253-1.36 ug/L; none above any federal threshold