Case Studies

Erickson Foundation Supportworks Case Studies: High Radon Levels, Nashua, NH

Monday, April 1st, 2019 by Niles Erickson


The homeowners of this residential property in Nashua, New Hampshire tested for radon on multiple levels within their home. Using an activated charcoal test at each location, the results came back from Alpha Energy Laboratories with pCi/L readings of 12.5, 11.5 and 9.5. As the recommended levels from the EPA are 4.0 pCi/L, the homeowners decided to bring in a professional radon mitigator to install a proper system and lower the levels of radon within their home. With high levels of radon detected on all 3 floors of this home, it was a good decision by the homeowner to take action and solve the problem, as people exposed to high amounts of radon are much more likely to get lung cancer, as stated by the EPA.


The homeowner contacted Erickson Foundation Supportworks, who tested again for radon in this home, and got readings of 14.5 pCi/L. 

Our specialists decided to centralize the system in the basement, and so located the radon vent in the middle of the home. The vent pipe began beneath the slab in the basement, allowing it to effectively reach the radon gas before it entered into the living space of the home. When properly sealed, the venting system is able to draw high amounts of radon right into its pipe, which then releases it up above the roof line of the home. A manometer was installed on the pipe within the basement, which allows the homeowners to see whether or not the radon system is still operational. The manometer in this case shows the air is flowing properly and drawing air particles and harmful radon gas up from beneath the basement slab. The fan itself was installed on the exterior of the home with it's own power source. The fan is crucial to the entire system, ensuring the air flow is constant and strong enough to draw the radon into the vent. The fan in this case, being low to the ground, will also be easy to service in the future should it ever stop operating correctly. 

After installation of the radon mitigation system, radon levels within this home were below 4.0 pCi/L. As mentioned, the manometer within the home will allow the homeowner to monitor the system. Most manufacturers of radon fans warranty their fans for 5 years, however most do last longer than this. Erickson Foundation Supportworks recommends all customers with radon systems regularly check their manometer to ensure the fan is still operating correctly.

Project Summary

Installing Contractor: Erickson Foundation Supportworks

Installation Specialist: Lorenzo Tirado

Products Installed: Radon Air Mitigation System

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Erickson Foundation Supportworks
14 Clement Rd
Hudson, NH 03051
Erickson Foundation Supportworks Service Area