地理信息系统（GIS）是将数字地图与数据管理相结合的计算机软件系统。它们是管理井口保护项目的理想选择。作者为宾夕法尼亚州东南部的五个农村社区开发了GIS应用程序，用于管理井口保护项目。本文简要讨论了井口保护GIS系统的构建，以及井口保护的土地使用控制和管理工具。

Geographic Information Systems (GIS) are computer software systems that combine digital mapping with data management. They are ideal for managing wellhead protection programs. The authors developed GIS applications for five rural communities in southeastern Pennsylvania for the administration and management of their wellhead protection programs. This brief discussion covers building wellhead protection GIS systems as well as land use controls and management tools for wellhead protection.