What Government Data Shows About Chloride in Miami-Dade County’s Aquifer
The U.S. Geological Survey has conducted extensive groundwater sampling throughout Miami-Dade County, focusing on aquifer 112BSCNN. This data compiles over 10,000 test results from 137 wells ranging from 14 to 325 feet deep, covering more than a decade of measurements.
Among the constituents measured, chloride is notable for its influence on water corrosivity. The median chloride concentration in this regional aquifer is 156 milligrams per liter, with results spanning from as low as 1 mg/L up to 15,400 mg/L depending on specific well locations. While chloride contributes to water taste and can cause staining or corrosion of plumbing, it is important to note that chloride levels above the secondary EPA standard of 250 mg/L are considered aesthetic rather than health-related standards.
Interpreting These Chloride Levels for Your Household Water
The variability in chloride concentrations across sampled wells illustrates the complex nature of groundwater chemistry in Miami-Dade County. Because this data reflects regional ranges and averages, it does not provide a direct measurement of your home's water. Testing your household water through a certified laboratory is the only way to determine your specific chloride concentration and overall corrosive potential.
Understanding whether your water exhibits corrosivity involves considering additional factors beyond chloride, including pH level, alkalinity, hardness, and total dissolved solids. Corrosive water can damage pipes, fixtures, and appliances, leading to leaks, metallic tastes, and premature equipment wear.
How Chemical Feed Water Treatment Works for Corrosive Water
Addressing corrosive water often requires a treatment approach that modifies the water’s chemical balance to reduce its ability to corrode plumbing materials. One effective method is a chemical feed system designed for whole-house treatment, which gently introduces specific substances into the water to neutralize corrosive elements.
This technology is particularly suited for well water with characteristics similar to those found in Miami-Dade County’s aquifer 112BSCNN. It manages the aesthetic and corrosive impacts of elevated chloride and other dissolved solids by stabilizing pH and reducing corrosivity without introducing harmful additives.
Determining Your Home’s Needs and Exploring Treatment Options
Homeowners suspecting corrosive water issues should begin with comprehensive water testing to analyze chloride levels and other chemical parameters relevant to water quality and corrosion potential. Armed with this information, selecting an appropriate treatment approach becomes possible.
The WSP Whole House Chlorination System - Complete, Well Water is a chemical feed system that ships ready to configure for residential use. It is designed to mitigate corrosive effects by adjusting the water chemistry, helping to protect plumbing infrastructure and maintain water quality.
While widespread regional data can help frame expectations, personalized testing and treatment are essential steps to address corrosive water effectively and preserve your home's plumbing health.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-08-14. 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 112BSCNN aquifer (Miami-Dade County): 10580 results from 137 wells, median 156.0 mg/L, range 1.0-15400.0 mg/L; 4825 above an AESTHETIC secondary standard only (secondary standard 250.0 mg/L (aesthetic)) - not a health finding
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