Arsenic in Collier County Water: What Government Sampling Shows
The U.S. Geological Survey conducted groundwater sampling focused on wells in Collier County's Aquifer 112NRSD. Between 2011 and 2019, 14 arsenic measurements were taken from 13 separate wells ranging from 9 to 40 feet deep. Arsenic was detected in all samples, with concentrations ranging from 0.78 to 3.5 micrograms per liter (μg/L). The median arsenic concentration across these samples was 1.55 μg/L.
Importantly, none of these measurements exceeded federal arsenic thresholds designed to safeguard public health. These data reflect conditions in the sampled wells but do not specify arsenic levels in every household's water supply. The presence of arsenic in the local aquifer is confirmed, yet actual household water arsenic concentrations require direct testing of the specific water source.
What Arsenic Presence Means for Residential Water Use
Arsenic is a naturally occurring element commonly found in groundwater in certain regions. While federal standards limit arsenic to ensure safe drinking water, understanding the exact concentration in your household water is essential for determining whether treatment is necessary.
When water treatment equipment intended to reduce arsenic fails, households face uncertainty about ongoing water quality. Because arsenic can be tasteless, odorless, and colorless, relying on sensory observation is insufficient to assess safety or treatment effectiveness.
Confirming Your Water Quality: What to Test
To determine arsenic levels in your household water after treatment failure, a certified laboratory test of your specific water supply is the only reliable method. This test should measure arsenic concentration and other relevant water quality parameters. Knowing your actual water composition guides appropriate treatment decisions and helps prevent unnecessary or ineffective solutions.
Addressing Arsenic Treatment Post-Equipment Failure
In cases where existing treatment no longer functions, choosing a new water treatment approach that effectively reduces arsenic is important. Reverse osmosis technology is a proven method to significantly reduce arsenic concentrations in residential water supplies.
The WSP 000 GPD Reverse Osmosis System - Commercial is designed to ship ready to configure for residences requiring dependable arsenic reduction. This equipment operates by forcing water through a semipermeable membrane that removes arsenic ions along with other contaminants. It can reestablish confidence in water quality following the failure of previous arsenic treatment equipment.
Next Steps for Households
- Obtain a professional water test of your household supply to establish current arsenic levels.
- Evaluate the effectiveness and function of existing water treatment equipment.
- Consider reverse osmosis systems like the WSP 000 GPD Reverse Osmosis System - Commercial to address arsenic removal needs.
By understanding what government data reveal about local water and obtaining precise testing, you can take informed action to restore safe, quality water in your home after treatment setbacks.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-06-04. 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 112NRSD aquifer (Collier County): 14 results from 13 wells, median 1.55 ug/L, range 0.78-3.5 ug/L; none above any federal threshold