If your tap water in Hillsborough County sometimes has a faint metallic or earthy taste or odor, arsenic presence could be a concern to evaluate. Government groundwater studies offer helpful context for residents deciding on the appropriate arsenic treatment level.
How Sample Depth, Well Depth, or Source Type Changes What to Expect
Arsenic concentrations vary by aquifer sampling depth
U.S. Geological Survey data for Hillsborough County aquifer 112SRFD show arsenic detections in wells 20 to 60 feet deep. Median detected arsenic was 0.165 micrograms per liter (ug/L), with a range from 0.05 to 0.2 ug/L. These values come from samples taken from three wells between 2010 and 2019.
Depth influences interaction with aquifer minerals
Shallower wells may interact with different mineral layers than deeper wells, potentially affecting arsenic presence. Your own well depth impacts the relevance of regional data.
How the Treated Water Differs at the Tap Once the Documented Technology Is in Place
Reduction of arsenic to lower concentrations
The C-Series Arsenic Filter system is designed to reduce arsenic to levels typically below the federal maximum contaminant level. This can improve water taste and provide peace of mind where arsenic presence is confirmed through testing.
Maintains other water quality aspects
This treatment maintains beneficial minerals while targeting arsenic specifically, avoiding unnecessary alterations to water chemistry.
The Role of Plumbing Material and Age, Separate from the Source Water
Older plumbing may contribute metals unrelated to arsenic
Lead or copper from plumbing fixtures can sometimes confuse water quality assessments if not separated from source water arsenic.
Material compatibility with treatment devices
Ensuring plumbing materials do not interact adversely with the arsenic treatment system helps maintain overall water quality.
What Distinguishes This Problem from the Two Most Often Confused Water Issues
Arsenic versus iron or manganese presence
Iron and manganese often cause discoloration or staining but are chemically distinct from arsenic. The regional arsenic data should not be conflated with these other constituents.
Arsenic versus bacterial contamination
Bacteria affect water safety differently and require separate testing and treatment approaches.
How Public-System Records Differ from Private-Well Testing in What They Establish
Regional groundwater data are averages, not individual well results
The USGS sampling in Hillsborough County covers a few wells in the aquifer and does not provide specific arsenic levels for your private well or public system tap.
Testing your own water is essential
Only a certified laboratory test of your water can determine your arsenic concentration accurately.
What to Write Down Before Asking for Treatment Advice
- Your well depth and type (e.g., drilled, dug, or driven)
- The date and results of the most recent lab test for arsenic, if available
- Observations of water taste, color, or odor changes
- Details about your household water use and any existing treatment equipment
Choosing the correct arsenic treatment depends on the concentration you find through testing. For households concerned about arsenic in Hillsborough County's aquifer 112SRFD, the C-Series Arsenic Filter ships ready to configure. It offers targeted arsenic reduction designed for residential use, matching treatment to documented demand levels in your water sample.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-09-25. 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 112SRFD aquifer (Hillsborough County): 5 results from 3 wells, median 0.165 ug/L, range 0.05-0.2 ug/L; none above any federal threshold

