1. Ground-water levels and flow in the vicinity of Wright-Patterson Air Force Base, Ohio, October - December 1987 Yale Public content 1992. 2002-06-01T04:00:00Z. 2016-06-03T17:26:48Z. Geological Survey (U.S.). The Survey ; For sale by Books and Open-File Reports Section. English. Public. Ohio and Wright-Patterson Air Force Base Region.