Local Aquifer 400BLMR: Source of Household Water in Baltimore County
Baltimore County is served in many areas by groundwater drawn from the 400BLMR aquifer. Water from this aquifer moves through underground rock before entering residential wells typically between 200 and 300 feet deep. This natural filtration influences the water quality reaching household taps. Government samples collected from three separate wells in this aquifer from 2019 to early 2020 provide a regional picture of radon concentrations detected in groundwater.
What to Record Before Seeking Treatment Guidance
Before choosing how to address radon in household water, it is important to have specific information on hand. Key details include the depth of your well, the type of well and pump system used, and any recent water quality reports if available. Most critically, a test of your own water for radon levels is essential since local aquifer data cannot substitute for your well’s actual measurements. Having dates and results from laboratory analysis ensures treatment decisions match your water’s characteristics.
Stepwise Approach: From Basic to Advanced Testing
Begin with a review of your water source and any visible or taste clues. While radon does not affect taste or odor, this can help eliminate other contaminant concerns. Next, consider a simple radon water test kit or professional lab analysis for radon concentration in your household water. This is vital because government sampling only shows concentrations measured in a few wells across the aquifer, not your specific well. If radon is detected, further analysis may consider seasonal variations and water usage patterns.
Sample Size, Well Distribution, and Their Limitations
The U.S. Geological Survey’s data for the 400BLMR aquifer covers three wells sampled once each over about a year. Radon-222 was found at levels ranging from 227 to 4,900 pCi/L, with a median of 3,470 pCi/L. All these values were below federal radon thresholds for water systems. However, with only three samples, this data set offers limited insight into variations between individual wells or seasonal changes. Your well’s radon concentration may be higher or lower, emphasizing the need for your own testing.
How Pentair Radon in Water Filter Addresses Radon
The Pentair Radon in Water Filter technology effectively reduces radon levels present in household water. It works by removing radon gas from water before it reaches faucets and appliances, thereby minimizing radon exposure from water use. This system ships ready to configure with your water line, providing a documented solution designed specifically for radon removal in residential settings. Using this treatment can complement other safety measures you may undertake based on your water analysis.
Influence of Well Depth and Water Source Type
Well depth and construction significantly affect radon levels found in water. The government samples reflect wells at depths of 200 to 300 feet, which typically tap older, deeper groundwater. Shallower wells or springs may show different radon behavior. Private wells also vary based on aquifer geology and water flow paths. Knowing your well’s depth and type helps predict potential radon levels and informs the choice of treatment systems accordingly.
Final Step: Ordering Your Radon Test
To resolve questions about radon in your household water, you should order a radon concentration test from a certified laboratory. A single, accurate measurement provides the data needed to determine if treatment is warranted and what class of treatment is appropriate. If radon levels exceed recommended guidance, technologies like the Pentair Radon in Water Filter provide an effective method to reduce radon exposure through water. Only with your well’s specific test results can you take confident action toward managing radon in your home water supply.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2020-01-13. 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 400BLMR aquifer (Baltimore County): 3 results from 3 wells, median 3470.0 pCi/L, range 227.0-4900.0 pCi/L; none above any federal threshold
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