Wilton Public Schools superintendent Dr. Gary Richards announced at last Thursday evening’s Board of Education meeting that radon retesting performed at Miller-Driscoll Elementary School in February found within-acceptable amounts of radon in the air at the school. He said that the testing showed that no corrective actions need to be taken at this time.

According to the report, written by Neal Freuden from Cardno ATC, “Laboratory analyses showed a maximum radon level of only 1.7 pCi/L [picocuries per liter] in any room, which is below the EPA recommended action level of 4.0 pCi/L.” Overall, the samples taken at Miller-Driscoll ranged from .3-1.7 pCi/L.

The EPA [Environmental Protection Agency] recommends corrective action when levels are above 4.0 pCi/L.

Richards explained that the CT Department of Public Health requires only 10 percent of the school to be tested, the district “chose to sample all the occupying rooms in contact with the ground floor. These testing locations included classrooms, offices, gymnasiums, media centers, conference rooms and cafeterias,” he said, adding, “The testing was conducted in accordance with the CT Department of Public Health’s school radon testing guidance and the EPA sample protocol.”

Radon testing was conducted in February 19-21 after much publicity and attention raised questions about whether initial testing done in November was performed correctly. After Marissa Lowthert, a Wilton parent, called attention to missed testing deadlines and testing protocols that were not followed correctly by Miller-Driscoll officials, the company that initially performed the tests–ATC Cardno–agreed to retest Miller-Driscoll as well as the three other district schools.

According to Richards, the results for Cider Mill, Middlebrook and Wilton High schools will be made public as soon as they are available. The district has posted a copy of the Miller-Driscoll radon test results on the Miller-Driscoll website.

In addition, because of the past scrutiny and questions raised, comprehensive testing on all indoor air-quality measurements has been performed by an independent, third-party company, TRC Companies, Inc. According to Richards, the results will be made public as soon as they are available.

Lowthert responded to GMW‘s request for comment, stating she wanted to review the results before commenting.