As a result of these proposed MCLs, radon may become the most common treated-for contaminant in well water. Like radon in air, radon in water can fluctuate daily and seasonally. Ideally, several grab samples should be taken over a period of days to get an accurate measure of radon. For a typical family of four using 300 gallons of water per day, they would need 8,100 gallons of storage. A tank this large is impractical and expensive.
Aeration is a preferred method of treatment for radon in water.
As the water is aerated, radon is released and piped outside. This method requires another pump to pressurize the pressure tank, a radon fan, and biological treatment of the aerated water, as it may be contaminated by the air used for aeration. However, gamma radiation results from the RDPs that accumulate in the filter. The filter needs to be shielded or remotely located to prevent radiation hazards to the occupants. Copyright 2000, Jefferson County, Colorado.