Fleck Radon in Water Filter

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Reading Radon Results from Suffolk City Aquifer 111SFCL

The US Geological Survey sampled radon-222 in groundwater wells within Suffolk City County, specifically aquifer 111SFCL, over several years including 2019 through to early 2025. Reports from these wells show radon levels detected consistently in the range of 610 to 680 picoCuries per liter (pCi/L), with a median value of 640 pCi/L.

These figures represent radon concentrations measured in the sampled wells only. They illustrate what has been found in the area's aquifer but do not specify the radon level in any individual household's well water.

Signs That Radon May Affect Your Household Water

Unlike some other water contaminants, radon does not create taste, odor, or visual changes in water. Household symptoms linked to radon in water are generally indirect and more related to inhalation of radon released from water during daily activities like showering or cooking. There are no distinctive water quality symptoms that would confirm radon presence or concentration.

Recognizing radon impact requires testing, as symptoms alone cannot reliably indicate radon levels or presence.

Understanding Certified Laboratory Radon Test Reports

A certified lab report for radon in water will list the concentration in picoCuries per liter (pCi/L), often alongside detection limits and method details. The report shows the measured value; it does not assess safety or regulatory violations directly. Instead, the report offers a precise measure for your water sample.

To know your home's radon concentration, submit a water sample to an accredited laboratory that applies EPA-recommended procedures for radon measurement.

How Radon Enters Groundwater in Suffolk City County

Radon commonly originates from the natural breakdown of uranium in soil and rocks beneath the surface. Suffolk City County's aquifer 111SFCL, from which the sampled wells draw, shows detectable radon consistent with this natural process. Radon dissolves into groundwater as it passes through uranium-bearing minerals underground.

This process is not due to man-made contamination and varies geographically based on local geology.

Interpreting Terms: Detected, Median, Range in USGS Sampling

In the USGS sampling record, 'detected' means the instrument found radon at measurable levels above the reporting limit in all five samples. 'Median' at 640 pCi/L represents the middle value of these measurements, while 'range' from 610 to 680 pCi/L covers the lowest and highest radon levels measured.

These figures provide an overview of radon concentration variability in wells tapped into the specific aquifer, helping to understand likely radon presence trends in the region but not individual home wells.

Sample Size and Data Reliability

The data supporting these observations comes from five samples taken from one well in the aquifer, sampled at a depth of 27 feet. While consistent, the small number of samples means conclusions about radon levels are indicative of the aquifer zone sampled rather than exhaustive across the entire Suffolk City County or aquifer.

Homeowners should consider that local variability can produce different radon levels in other wells drawing from the same or nearby aquifers.

What You Should Not Conclude from This Regional Data

These historical and regional radon measurements do not determine the radon concentration in your household water. They also do not imply any health violation or unsafe water at the federal level for the sampled wells. Detecting radon at these levels is common in many groundwater sources and does not by itself indicate a problem needing immediate action.

To understand what treatment your home water might require, precise testing of your well water is essential.

Considering Treatment Options for Radon in Water

When evaluating treatment technologies, the Fleck Radon in Water Filter offers a method designed to reduce radon concentrations in household water supplies. This system ships ready to configure and can be incorporated into your water system to help address radon levels detected via testing.

Reviewing your test results and treatment goals carefully will help you decide if this or other treatment approaches best fit your household's needs.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2025-03-24. 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 Radon-222 in the 111SFCL aquifer (Suffolk city County): 5 results from 1 wells, median 640.0 pCi/L, range 610.0-680.0 pCi/L; none above any federal threshold