Water drawn from Miami-Dade County in Florida commonly relies on groundwater from the 112BSCNN aquifer. This aquifer feeds wells ranging in depth from 22 to 132 feet, supplying water that travels through household plumbing to reach taps and appliances. Understanding how radon behaves in this system and what influences its levels is important for managing water quality at home.
If You Consider Plumbing Material and Household Plumbing Age
The plumbing system in your home plays a distinct role separate from the source water when it comes to radon. Materials and the age of pipes do not alter the radon concentration present in the water arriving from the aquifer. Radon, being a radioactive gas, dissolves in water at the source and travels unchanged through any household piping. However, plumbing conditions can affect other water qualities but are not a factor in modifying radon itself before it reaches your tap.
If You Track Seasonal and Historical Variation in Radon Levels
The US Geological Survey sampled ten wells within Miami-Dade County’s 112BSCNN aquifer over a period from June 6 to June 16, 2016. Results showed radon-222 was detected in every well sampled, with reported values spanning from 74.0 to 390.0 picoCuries per liter (pCi/L) and a median of 157.5 pCi/L. While this provides a snapshot in time, radon concentrations in groundwater can vary seasonally and across multiple years due to natural changes in the aquifer and surrounding geology. This variation means that repeated testing over time is beneficial for understanding the typical radon exposure potential in your household water.
If You Understand Secondary Versus Health-Based Limits for Radon
Radon in water is regulated for its health implications primarily through air quality standards related to radon released during water use, rather than the water’s direct content alone. Government data indicates that none of the Miami-Dade County samples exceeded federal thresholds for radon in water, demonstrating compliance within the area at large. It’s important to note that aesthetic secondary standards, which might concern taste or odor, are not applicable to radon, as it is odorless and tasteless. Therefore, any detection in water is a measure of presence, not a violation or direct indication of health risk by itself.
If You Consider How Treatment Changes Water Radon Levels at the Tap
The Pentair Radon in Water Filter offers a documented solution designed specifically to reduce radon concentrations in household water. Once configured in your home’s water system, it effectively lowers radon content by filtering water before it reaches your fixtures. This treatment results in diminished radon levels at the tap, reducing the amount of radon released into indoor air during water use activities such as showering or cooking. The system ships ready to configure and directly addresses the radon concern without altering other water qualities.
If You Need to Distinguish Radon from Two Commonly Confused Water Issues
Radon is often confused with other volatile substances or minerals present in groundwater, such as methane gas or iron compounds, because they all impact water quality differently. Unlike these substances, radon is a radioactive noble gas and does not cause changes in water color or strong smells. It also does not result in staining or scaling typical with iron or hardness. Recognizing this difference helps homeowners focus on the appropriate testing and treatment rather than misattributing water issues.
If You Want to Know Which Household Fixtures Are Affected First and Why
Fixtures such as showers, faucets, and other points where water becomes aerosolized or heated are most impacted by radon. This is because radon gas readily escapes from water into the air during these activities, contributing to indoor radon levels. Appliances like dishwashers and washing machines are less affected since water is contained during use. Understanding where radon exposure is most likely to increase indoor air concentrations assists homeowners in prioritizing treatment efforts.
To confirm the radon level specific to your household water, the single test to order is a radon-in-water analysis performed on a sample drawn directly from your well or tap. This test will provide precise information about your home's radon concentration, allowing you to decide if treatment with systems like the Pentair Radon in Water Filter is necessary and suited to your needs.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2016-06-16. 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 112BSCNN aquifer (Miami-Dade County): 10 results from 10 wells, median 157.5 pCi/L, range 74.0-390.0 pCi/L; none above any federal threshold
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