Well Water & ERV
Radon Mitigation of Well Water
“National Academy of Sciences (NAS), is the most comprehensive accumulation of scientific data on the public health risks of radon in drinking water. The report was required by the Safe Drinking Water Act. The NAS report (BEIR VI) confirms that radon is a serious public health threat. The report goes on to refine the risks of radon in drinking water and confirms that there are drinking water related cancer deaths…”
“As required by the Safe Drinking Water Act, EPA has developed a proposed regulation to reduce radon in drinking water…”
The two methods of remediation of well water are activated carbon filter tanks and aeration.
We have installed many of these systems for many years especially the aeration units since we can guarantee to remove 99% of the radon.
Radon in Building Materials - Energy Recovery Ventilation (ERV)
Used when Radon is emanating from indoor building materials, such as stone foundation walls in older buildings.
Why Mitigate Radon?
The EPA working with the National Academy of Sciences and the Science Advisory Board and EPA.gov states that “Radon is estimated to cause about 21,000 lung cancer deaths per year” and “Radon is a health hazard with a simple solution”. Further information is found on websites for the American Cancer Society, American Lung Association, The National Cancer Institute of the U. S. National Institutes of Health.
According to the EPA’s “A Citizen's Guide to Radon”, the method to reduce radon “primarily used is a vent pipe system and fan, which pulls radon from beneath the house and vents it to the outside.” which is also called sub-slab de-pressurization, active soil depressurization, and soil suction.
“EPA generally recommends methods which prevent the entry of radon. Soil suction, for example, prevents radon from entering your home by drawing the radon from below the home and venting it through a pipe, or pipes, to the air above the home where it is quickly diluted” and “EPA does not recommend the use of sealing alone to reduce radon because, by itself, sealing has not been shown to lower radon levels significantly or consistently” according to the EPA’s “Consumer's Guide to Radon Reduction: How to fix your home”.
For crawlspaces, the EPA states “An effective method to reduce radon levels in crawlspace homes involves covering the earth floor with a high-density plastic sheet. A vent pipe and fan are used to draw the radon from under the sheet and vent it to the outdoors. This form of soil suction is called submembrane suction, and when properly applied is the most effective way to reduce radon levels in crawlspace homes.”