Water Wells and Boreholes 1998

This point shapefile was created to display in a Geographic Information Systems (GIS) environment the data points that represent water wells and boreholes contained in the iLITH database. The following description of the iLITH database contains the information contained in the shapefile, taken from Open-File Study 00-08 -- "iLITH is a Microsoft Access database containing GIS capabilities that allows users to interact with a portion of the Indiana Department of Natural Resources (IDNR) Water-Well Record Database. iLITH differs from the IDNR database in that lithologic descriptions and drilling contractor names have been standardized, locational information for ~104,000 water-well logs has been verified, and the spatial information in the database has been standardized for use with USGS digital elevation data and U.S. Census Bureau Tiger data. The iLITH graphical interface facilitates efficient interaction between the user and the database."本点形状文件（point shapefile）旨在地理信息系统（Geographic Information Systems，以下简称GIS）环境中，呈现iLITH数据库所收录的水井与钻孔数据点。下述关于iLITH数据库的说明内容源自《公开研究报告00-08（Open-File Study 00-08）》，涵盖了本形状文件所包含的全部信息："iLITH是一款集成GIS功能的Microsoft Access数据库，可供用户查询印第安纳州自然资源部（Indiana Department of Natural Resources，以下简称IDNR）的部分水井记录数据库。与IDNR原生数据库相比，iLITH实现了岩性描述与钻井承包商名称的标准化，完成了约104,000份水井测井资料的位置信息核验，并对数据库中的空间信息进行了标准化处理，以适配美国地质调查局（United States Geological Survey，以下简称USGS）数字高程数据与美国人口普查局Tiger数据的使用需求。iLITH的图形交互界面可助力用户与数据库实现高效交互。"