United States Geological Survey YearbookU.S. Geological Survey, 1994 - Geology |
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Page 32
... aquifer . The aquifer underlies about 174,050 square miles in Colo- rado , Kansas , Nebraska , New Mexico , Okla- homa , South Dakota , Texas , and Wyoming . Water levels in some parts of the High Plains aquifer declined as much as 100 ...
... aquifer . The aquifer underlies about 174,050 square miles in Colo- rado , Kansas , Nebraska , New Mexico , Okla- homa , South Dakota , Texas , and Wyoming . Water levels in some parts of the High Plains aquifer declined as much as 100 ...
Page 33
... aquifer in 1980 ( 3,250 million acre feet ) was in Nebraska . Water levels in the High Plains aquifer are monitored through an extensive observa- tion - well network . This network comprises many smaller networks of observation wells ...
... aquifer in 1980 ( 3,250 million acre feet ) was in Nebraska . Water levels in the High Plains aquifer are monitored through an extensive observa- tion - well network . This network comprises many smaller networks of observation wells ...
Page 34
... Aquifer Boundary 33 ° 32 ° River River EXPLANATION Declines of over 50 feet Changes between -50 and +10 Rises of over 10 feet 0 50 ᅡ 0 Water - level change in the High Plains aquifer from 1980 to 1993 . midpoint of the period from ...
... Aquifer Boundary 33 ° 32 ° River River EXPLANATION Declines of over 50 feet Changes between -50 and +10 Rises of over 10 feet 0 50 ᅡ 0 Water - level change in the High Plains aquifer from 1980 to 1993 . midpoint of the period from ...
Page 35
... aquifer depletion to areas where potential rates of depletion were smaller . After 1950 , most of the growth in irrigated acreage was in the Northern High Plains , where greater potential recharge and smaller consumptive irrigation ...
... aquifer depletion to areas where potential rates of depletion were smaller . After 1950 , most of the growth in irrigated acreage was in the Northern High Plains , where greater potential recharge and smaller consumptive irrigation ...
Page 38
... aquifers that previously had been isolated from each other by confining units . These new connections have provided ... aquifer systems has been progressively flooding the Location of the Retsof Salt Mine and the collapse area and a ...
... aquifers that previously had been isolated from each other by confining units . These new connections have provided ... aquifer systems has been progressively flooding the Location of the Retsof Salt Mine and the collapse area and a ...
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