O. E. Meinzer
1935
<p><span>During the severe droughts of recent years almost the only water‐supplies available throughout large areas of the United States have been those obtained from underground sources. Consequently, </span>a<span> great interest has developed in the ground‐water resources of the country and there has been much concern lest the declining water‐levels in </span>wells<span> and the diminished flow of springs may be warnings of the ultimate exhaustion of our ground‐water supplies. As is </span>well<span> known, the United States Geological Survey has for half </span>a<span> century conducted investigations of the ground‐water of the country and numerous investigations have been made by State geological surveys and other agencies. However, the time is now ripe for </span>a<span> coordinated, continuing </span>program<span> to obtain systematic records of water‐levels in </span>observation<span>‐</span>wells<span> and correlative records of natural discharge and artificial withdrawals of ground‐water. </span></p>
application/pdf
10.1029/TR016i002p00498
en
American Geophysical Union
The need for a nation‐wide program of observation‐wells
article