Water-Level Measurement Data Collected during 2015-2016 and Approximate Long-Term Water-Level Altitude Changes of Wells Screened in the Chicot, Evangeline, and Jasper Aquifers, Houston-Galveston Region, Texas

The U.S. Geological Survey, in cooperation with the HarrisGalveston Subsidence District, City of Houston, Fort Bend Subsidence District, Brazoria County Groundwater Conservation District, and Lone Star Groundwater Conservation District, has produced this dataset of water-level changes and approximate water-level altitudes in the Chicot, Evangeline, and Jasper aquifers in the Houston-Galveston region, Texas. This dataset shows current-year (2015-2016) water-level changes for each aquifer, 5-year (2011-2016) water-level changes for each aquifer, long-term (1990-2016 and 1977-2016) water-level changes for the Chicot and Evangeline aquifers, and long-term (2000-2016) water-level changes for the Jasper aquifer. The water-level measurements in the dataset are built upon and stored in the National Water Information System: web interface, groundwater information, and field measurements website located here: http://dx.doi.org/10.5066/F7P55KJN. This site is a publicly available, searchable, online database of water information.

本数据集由美国地质调查局（U.S. Geological Survey）联合哈里斯-加尔维斯顿地面沉降区、休斯敦市、本德堡地面沉降区、布拉佐里亚县地下水保护区以及孤星地下水保护区共同编制，涵盖得克萨斯州休斯顿-加尔维斯顿地区奇科特（Chicot）、伊万杰琳（Evangeline）与贾斯珀（Jasper）含水层（aquifer）的水位变化及近似水位高程数据。
本数据集包含各含水层的当年度（2015-2016年）水位变化、各含水层的5年期（2011-2016年）水位变化，奇科特与伊万杰琳含水层的长期水位变化（1990-2016年及1977-2016年），以及贾斯珀含水层的长期水位变化（2000-2016年）。
本数据集的水位测量数据基于国家水信息系统（National Water Information System）的网页平台、地下水信息服务与实地测量数据站点构建并存储，该站点地址为http://dx.doi.org/10.5066/F7P55KJN，为公开可访问、支持检索的在线水信息数据库。