If you rely on private well water but only have access to public groundwater records
Data collected by the U.S. Geological Survey for Shelby County’s aquifer 112TRRC comes from 24 different wells between 34 and 93 feet deep. The measurements span April 2011 through June 2019 and provide a useful regional snapshot of well water quality. However, these records do not replace testing of your own household water supply. Each well’s condition can vary considerably even within the same aquifer. To understand the particular chemistry in your water, a private well test is necessary.
If you are reviewing the public sampling data and wondering how comprehensive it is
The groundwater sampling for this area includes 56 individual results from 24 separate wells. This is a moderate dataset offering some insight into typical conditions within the aquifer 112TRRC. Still, the data covers a range of chloride values from 2.44 up to 209.0 mg/L, demonstrating significant variability among wells. A small sample size means that while you can identify broad trends, local variations may not be captured, so localized testing remains critical.
If you want to discern aesthetic secondary standards from health-based limits in this context
The detected chloride concentrations recorded in these Shelby County wells remain below any federal health-based thresholds. While chloride levels can influence aesthetic factors such as taste, potential corrosion of plumbing, and the likelihood of staining fixtures, the levels found here do not indicate a health risk. This distinction is important because exceeding an aesthetic guideline simply signals a possible nuisance rather than a safety concern requiring emergency action.
If you notice certain household fixtures or appliances showing signs of wear or corrosion first
Aquifer chloride levels, even those within the detected range, may contribute to gradual impacts on plumbing and appliances exposed continuously to well water. Fixtures and devices involving metal components or water heaters often exhibit early signs due to ongoing exposure. This is relevant to households where existing water treatment equipment is struggling to maintain these secondary aesthetic qualities, as untreated chloride can accelerate deterioration and affect performance.
If you want an example to interpret median and range numbers as a household water owner
The median chloride concentration of 14.3 mg/L represents the middle point of all sampling results and can be viewed as a typical level within Shelby County’s aquifer 112TRRC. The range from 2.44 to 209.0 mg/L shows the variability possible between different wells in the area. This means your well water could have chloride near the median, but it might also be closer to the higher or lower end. Only direct testing of your well will establish your actual conditions.
Considering this regional record, if your household’s current water treatment equipment is unable to keep pace with the water quality demands, enhancing treatment capacity should be a priority. The Autotrol Total Well Chlorination System ships ready to configure and provides a solution designed for households requiring treatment handling up to 32,000 grains, supporting sustained performance even as treatment demands increase.
In summary, the sampling data for Shelby County’s aquifer 112TRRC represents multiple wells over several years and serves as a helpful reference for understanding regional well water quality. For personal water treatment decisions, testing your specific well remains essential. The regional chloride levels detected are below health-based thresholds but can affect aesthetics and appliance longevity, explaining why equipment sometimes needs increased capacity. The U.S. Geological Survey data is accessible at their groundwater monitoring site for those seeking further information.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-06-11. 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 Chloride in the 112TRRC aquifer (Shelby County): 56 results from 24 wells, median 14.3 mg/L, range 2.44-209.0 mg/L; none above any federal threshold

