Local Aquifer and Water Supply Background
The Muscatine County area relies on groundwater drawn primarily from aquifer 111ALVM, which feeds residential wells at varying depths ranging from shallow to nearly 200 feet. Water delivered to home taps originates from this aquifer, subject to its naturally occurring mineral and trace element composition, including uranium and radium.
Interpretation of Uranium Range Versus Federal Standards
The U.S. Geological Survey (USGS) sampled four different wells in the Muscatine County aquifer 111ALVM between 2011 and 2017. Uranium was detected in four out of five samples, with a median concentration of 0.8055 micrograms per liter and a range from 0.184 to 6.83 micrograms per liter. None of these measurements exceeded the federal standards established for uranium in drinking water. This means that while uranium is present, the detected levels are not violations and do not imply unsafe water by federal regulation.
Sample Size and What It Implies
The USGS data is based on a modest number of samples (five results from four separate wells) collected over several years. This sample size provides a general indication of uranium levels in this aquifer but may not represent every well or household water supply precisely. Individual well testing is necessary to understand the exact uranium-radium concentration in a home’s water.
Household Symptoms Suggesting Uranium-Radium Issues
Typical signs in a residence that might point toward uranium or radium presence include changes in water taste or slight discoloration, although these are not conclusive. Failure of existing water treatment equipment can also prompt consideration of whether uranium or radium might be factors. However, many other water quality issues can cause similar symptoms, so testing is essential before drawing conclusions.
Stepwise Approach to Confirming and Addressing the Problem
- Start with basic water clarity and taste observations at the point of use.
- Request laboratory testing of your well water specifically for uranium and radium to obtain precise concentrations.
- Review the sample depth and well construction details, as deeper wells may have different uranium-radium levels.
- Compare your test results only to federal safety standards as a reference; detections below thresholds are common and not automatically problematic.
- If treatment is needed, consider direct-purchase water treatment systems that address uranium and radium, such as the Autotrol Uranium & Radium System, which provides proven technology with a 32000-grain capacity for household use.
Meaning of Terms 'Detected', 'Median', and 'Range' in Area Sampling
'Detected' means that instruments measured uranium concentrations in four of five samples, while one was below the reporting limit, meaning it was too low to quantify. 'Median' is the middle value of the five measurements, offering a central tendency insight rather than an absolute level for any one location. 'Range' indicates the lowest and highest values found, showing variability among wells sampled in the area.
In summary, the USGS sampling in Muscatine County's aquifer 111ALVM confirms uranium presence within federally accepted limits but does not pinpoint conditions at an individual residence. Confirmatory testing of your own well water is essential. When existing treatment equipment fails, the Autotrol Uranium & Radium System, shipping ready to configure, is a documented household solution to address uranium and radium effectively.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2017-06-19. 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 111ALVM aquifer (Muscatine County): 5 results from 4 wells, median 0.8055 ug/L, range 0.184-6.83 ug/L; none above any federal threshold