What Government Testing Shows About Arsenic in Highlands County Aquifer 120UFAQ
The U.S. Geological Survey has sampled groundwater from wells in Highlands County, Florida, in the 120UFAQ aquifer, which commonly supplies residential water. Testing conducted between April 2015 and January 2026 from two wells at depths between 1,520 and 1,530 feet found arsenic concentrations consistently detected, ranging narrowly from 0.22 to 0.28 micrograms per liter (µg/L) with a median of 0.27 µg/L. None of these samples surpassed any federal arsenic threshold.
It is important to understand that these figures represent conditions at sampled wells within the general area and aquifer. They do not establish the arsenic level in any individual home’s water source, which can vary. The presence of arsenic at these levels indicates arsenic is naturally occurring here but at concentrations below regulatory action limits.
Why Testing Your Own Water Is Essential
Because arsenic levels can differ significantly within an aquifer depending on well depth, construction, and localized geology, homeowners must analyze their specific water supply to know their arsenic concentration. Professional water sampling and laboratory analysis targeting arsenic provide this definitive information. Without an individual test, assumptions based on area data cannot assure water safety or treatment needs.
Understanding Arsenic's Impact and Regulatory Thresholds
Arsenic is a naturally occurring element found in some groundwater sources. While detected concentrations in Highlands County samples are well below federal maximum contaminant levels (MCLs), which are set to protect health, arsenic can still affect water taste and quality at varying levels. The government sets these standards based on health risk assessments, but detection alone is not a violation or indicator of unsafe water.
Water with arsenic below the MCL is compliant, meaning there is no regulatory requirement to treat it. However, some households prefer to reduce arsenic further for peace of mind or specific water quality preferences.
How Treatment Technology Meets Residential Arsenic Reduction Needs
For households deciding on treatment options to reduce arsenic, reverse osmosis offers a proven method. This technology forces water through a semipermeable membrane, effectively removing many dissolved contaminants, including arsenic, to produce clean water for drinking and cooking.
A reverse osmosis system configured to handle typical household usage provides efficient arsenic reduction sufficient for most residential needs. It ships ready to configure with your water system and requires no specialized service to begin operation. By choosing this technology, users gain control over their water quality regardless of variable aquifer concentrations.
Summary: Evaluating and Addressing Arsenic in Your Home Water
- Government sampling in Highlands County aquifer 120UFAQ shows arsenic detection consistently below federal limits, indicating low regional concentrations.
- Individual water testing is necessary to determine your home's arsenic level accurately.
- Arsenic below regulatory limits is not a health violation or unsafe by current standards but may warrant treatment depending on personal preferences.
- Reverse osmosis systems provide effective arsenic reduction for residences, delivering improved water quality directly to households.
Deciding which class of treatment fits your household starts with understanding your water’s specific arsenic concentration through testing. From there, choosing a technology like reverse osmosis ensures thorough reduction aligned with your water quality goals.
Where this information comes from
Source: USGS groundwater sampling. 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.