groundwater

2016 AGI Critical Issues Forum: Final Report

Widespread use of groundwater for irrigation in the United States emerged in the early- and mid-20th century, with withdrawals growing for decades subsequent as more — and higher capacity — wells were drilled. Access to abundant groundwater allowed farmers to grow more food on more land and to better withstand crop-withering droughts. The ensuing agricultural boom fed a growing U.S. population and fueled increasing national health, prosperity and food security. Today, roughly 11 percent of U.S.

Interactive map of groundwater levels and subsidence in the Houston-Galveston area

The U.S. Geological Survey provides an interactive map that allows users to view changes in groundwater levels and associated land subsidence from 1977 to 2016 in the Houston-Galveston area.

The map uses annual data from over 700 wells in 11 counties, and shows changes in water levels in three major aquifers in the region: the Chicot, Evangeline, and Jasper aquifers.

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