Olympus Corp. v. United States,
98 F.3d 1314, 1996 U.S. App. LEXIS 27509 (U.S. Fed. Cir., Oct. 23, 1996)
 Standard “Differing Site Conditions” clause in Government contract requires, as a condition to recovery under that clause, that the alleged differing condition which serves as the basis of the claim must have existed at the time the contract was executed.