Domestic well locations and populations served in the conterminous U.S.:1990

In this dataset we present two maps that estimate the location and population served by domestic wells in the contiguous United States. The first methodology, called...本数据集提供两幅地图，用于估算美国本土（contiguous United States）境内家用井的分布位置及其服务的人口总量。第一种研究方法被称为……