Miller-Driscoll radon levels need 'no corrective action'

Radon levels at Miller-Driscoll School are not in need of corrective action, Superintendent Gary Richards announced at the April 10 Board of Education meeting.

Radon testing at Miller-Driscoll was conducted Feb. 19-21, said Dr. Richards, and the school district received the results on Wednesday, April 9.

“The purpose of this monitoring was to evaluate the airborne levels in comparison to the U.S. Environmental Protection Agency (EPA)’s recommended exposure limit of 4.0 picocuries per liter (pCi/L) of air,” explained Dr. Richards.

According to EPA’s website, if schools have radon levels of 4.0 pCi/L, the EPA recommends that the schools take action to reduce their levels.

The Miller-Driscoll air samples underwent laboratory analysis, said Dr. Richards, and the results ranged from 0.3-1.7 pCi/L.

“No results were even remotely close to a level of 4.0 pCi/L,” said Dr. Richards. “The conclusions and recommendations section of the report concludes with the statement: Therefore, no corrective actions need to be taken at this time.”

Dr. Richards said 10% of the school was required to be tested, but the Wilton school 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,” explained Dr. Richards.

“The testing was conducted in accordance with the Connecticut Department of Public Health’s school radon testing guidance and the EPA sample protocol.”

Dr. Richards said the testing was conducted during a time of HVAC heating, closed building conditions and in the absence of construction activities.

“Similar testing was also conducted at Cider Mill, Middlebrook and Wilton High School on March 5-7,” Dr. Richards said. “We will share these results publicly when we receive them.”

Indoor air quality

Dr. Richards also mentioned the indoor air quality assessment conducted at Miller-Driscoll last month.

“We should be getting reports from the companies this month,” said Dr. Richards. “As soon as we receive these reports, we will share this information with the public.”

Dr. Richards said the Miller-Driscoll radon results will be posted to the Miller-Driscoll website Friday, April 11.

“As soon as we get the other reports, we will put them on the school websites the next day,” said Dr. Richards.