When you receive a laboratory test report for total well water constituents, such as chloride, it lists measured concentrations in milligrams per liter (mg/L). In Shelby County, Tennessee, government groundwater sampling in aquifer 124MMPS reported chloride concentrations ranging from 1.26 to 16.4 mg/L across 228 samples collected between 2010 and 2026 from wells 76 to 1140 feet deep. All results were below federal thresholds, indicating no health-based violations in this regional data.
If you observe staining, taste issues, or corrosion in your household plumbing
These symptoms may be related to elevated total dissolved solids, including chloride, but do not alone confirm a water quality problem requiring treatment. Such issues can cause metallic taste, blue-green stains, or corrosion in pipes and fixtures. Testing your own well water through certified laboratories will identify the actual concentration of constituents in your water supply to confirm whether treatment is beneficial.
If your water test report shows chloride near or above aesthetic secondary standards
It is important to distinguish that aesthetic secondary standards address taste, odor, color, and staining but are not health-based limits. For chloride in Shelby County samples, all measured concentrations were below these thresholds, meaning no public health concern was identified. Treatment decisions should consider whether aesthetic effects impact your household comfort and appliance longevity.
If you leave total dissolved solids untreated in your household water over several years
Untreated constituents like chloride may contribute to gradual staining of plumbing fixtures, water heaters, and appliances. Corrosive effects can reduce equipment lifespan and cause maintenance issues. However, these outcomes develop over extended time frames and vary with water chemistry. Regular water testing and monitoring are key to assessing the need for treatment.
If you compare public water system records with private well testing results
Government sampling data represents area-wide conditions, not your individual well water. Public system records show no health-based chloride violations for Shelby County aquifer 124MMPS, but private wells may differ. A specific well test is necessary to understand your household water quality, as local variations in geology and depth influence constituent levels.
If your household size or property use changes, such as increased occupancy or seasonal residence
Water demand affects treatment capacity needs. Larger households or properties with seasonal usage require treatment systems sized accordingly. The Autotrol Total Well Chlorination System, with a grain capacity of 32,000, ships ready to configure and can accommodate varying household demands. Proper sizing ensures effective treatment without overburdening equipment.
In closing, while Shelby County regional data shows chloride detected in all sampled wells at levels below federal thresholds, it is incorrect to assume your well water has the same concentrations or that treatment is automatically needed. Only certified laboratory testing of your own water can determine its specific quality. The Autotrol Total Well Chlorination System offers a documented approach to managing total well water constituents when treatment is warranted based on your individual water profile and household needs.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-06-05. 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 124MMPS aquifer (Shelby County): 228 results from 50 wells, median 3.095 mg/L, range 1.26-16.4 mg/L; none above any federal threshold