Government Sampling Data for Highlands County Aquifer 120UFAQ
Water quality concerns often prompt questions about arsenic levels in local water sources. In Highlands County, Florida, the U.S. Geological Survey conducted groundwater sampling targeting the 120UFAQ aquifer, where residential wells commonly draw water. Between April 2015 and January 2026, samples from two wells at depths of approximately 1520 to 1530 feet were analyzed for arsenic content.
The results showed that arsenic was detected in all three samples, with concentrations ranging from 0.22 to 0.28 micrograms per liter (µg/L) and a median concentration of 0.27 µg/L. These figures represent the values measured in the sampled wells and do not reflect any individual household water supply. Importantly, none of these measurements exceeded any federal threshold for arsenic in drinking water.
Interpreting Arsenic Data and What It Means for Your Household
Arsenic is a naturally occurring element that can enter groundwater through geological formations. While trace amounts may be detected through sensitive instrumentation, the mere presence of arsenic does not necessarily indicate a health risk or legal violation. The U.S. Environmental Protection Agency has set a maximum contaminant level of 10 µg/L for arsenic in public water systems, a limit well above the values reported in these Highlands County aquifer samples.
Because of natural variability and localized geology, arsenic levels in your specific well could differ significantly from averages in the sampled area. To determine the arsenic concentration in your household water supply, testing of your own well water by a certified laboratory is essential. This direct assessment is the only way to know your exposure level and whether any treatment measures are needed.
Addressing Arsenic in Residential Water Supplies
If testing shows arsenic concentrations in your water above levels you find concerning or above regulatory guidelines, there are treatment technologies designed specifically to reduce arsenic. One documented solution is the WSP 10 GPM Whole House Arsenic Reduction System, which uses adsorptive media technology to lower arsenic content before water reaches household taps.
This system ships ready to configure for use with residential water supplies and is designed to treat water at flow rates up to 10 gallons per minute. It offers a comprehensive approach to arsenic reduction for whole-house applications, supporting water safety and quality based on your specific test results.
Next Steps for Homeowners
- Obtain professional testing of your well water to establish current arsenic levels.
- Consider the reported local aquifer data as background information but rely on your test results for decisions.
- If necessary, explore treatment options such as the WSP 10 GPM Whole House Arsenic Reduction System to manage arsenic concentrations effectively.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-01-26. 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 Arsenic in the 120UFAQ aquifer (Highlands County): 3 results from 2 wells, median 0.27 ug/L, range 0.22-0.28 ug/L; none above any federal threshold
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