Radon Testing Results

Testing was done in each school February 15 through February 17, 2012. The sampling was performed in response to Connecticut General Statute Section 10-220. The sampling followed the protocols of USEPA Radon Measurement in Schools, EPA 402-R-92-014. The test results showed that we are in compliance. 

Below is the conclusion of the radon testing from the consultant.

4 Conclusion 

During the course of the initial radon measurement study in the Regional School District 12, thirty-five (35) sampling canisters, including duplicates and blanks, were placed in 10% of every frequently occupied room that is located on ground level, or over a room or space that touches the ground but which was not sampled because it did not meet the EPA/CTDPH criteria of "frequently occupied". All canisters were found to be in place and undisturbed when our personnel returned to the schools to retrieve the tests. Sampling complied with all Connecticut Department of Public Health requirements, as well as the USEPA document, Radon Measurement in Schools, EPA 402-R-92-014, July 1993. The RPD was not calculated since in each duplicate pair, both results were below the 4.0 pCi/L standard, as adjusted for the canister error rate. The 'blank' sampling canisters did not exceed a level that would question the validity of the radon measurement study. 

The average outdoor radon concentration as studied by the USEPA is 0.4 pCi/L and the average indoor concentration is 1.3 pCi/L. The USEPA has a recommended action guideline of 4.0 pCi/L and recommends taking further action (fixing the problem) if your results are over 4.0 pCi/L. The results for the Regional School District 12 sampling were all below the average USEPA standard and are not of concern for the dates of sampling. 
Report prepared by Environmental Technician II, Kathleen Morgan. 

Report reviewed and approved by:

Matthew Myers

Robert L. May, Jr.

Associates

Principal in Charge


NEHA NRPP # 105366 RT