1. Approximate water-level changes in wells completed in the Chicot and Evangeline aquifers, 1977-91 and 1990-91, and measured compaction, 1973- 90, in the Houston-Galveston region, Texas [microform] Yale Public content 1991. 2008-08-05T14:21:14Z. 2008-08-05T14:21:14Z. Barbie, Dana L. U.S. Geological Survey. English. Public. Texas, Houston, and Galveston.