The uncertainty for attempting to extrapolate the yearly radon concentration from a five to seven day sample is huge: about +/- 90% (at the 90% confidence level) 17. For this reason, a single CC reading (or indeed several) cannot be used to estimate the annual radon exposure in a house.
The Defeasance Clause. As part of a mortgage agreement, the defeasance clause provides the buyer the right to secure the title, or deed, for the property once the debt is paid in full. Prior to that time, the financial institution backing the loan has all rights to the title as it functions as collateral for the associated debt.
A provision in a loan or bond removing it as a liability on a balance sheet if cash or a portfolio is set aside for debt service. Usually defeasance occurs when a borrower owns a portfolio of Treasury securities, the coupons of which are used to service a debt. When the borrower has set aside sufficient assets to cover the debt, the debt does not need to be recorded on a balance sheet.