1. Water-level contour map of Biscayne aquifer, Alexander Orr and southwest well-field areas, Dade County, Florida, May 2, 1978 [cartographic material] Yale Public content 1980. 2022-12-03T20:03:04Z. 2022-12-06T04:02:27Z. Swayze, Leo J. U.S. Geological Survey. English. cartographic image. Public. Florida and Miami-Dade County.