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TRANSCRIPT
Figure 12. Map showing water-level changes in the Jasper aquifer, greaterHouston area, Texas, 2001–02.
OPEN-FILE REPORT 02–134Water-level changes, Jasper aquifer, 2001–02—SHEET 12 OF 15
Coplin, L.S., and Lanning-Rush, Jennifer, 2002, Water-level altitudes 2002 and water-level changes in the Chicot, Evangeline,and Jasper aquifers and compaction 1973–2001 in the Chicot and Evangeline aquifers, Houston-Galveston region, Texas
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U.S. DEPARTMENT OF THE INTERIORU.S. GEOLOGICAL SURVEY
Base from U.S. Geological Survey Digital data, 1:100,000Universal Transverse Mercator projectionZone 15
For additional information write to:District Chief
U.S. Geological Survey8027 Exchange Dr.
Austin, TX 78754–4733E-mail: [email protected]
WATER-LEVEL ALTITUDES 2002 AND WATER-LEVEL CHANGES IN THE CHICOT, EVANGELINE,AND JASPER AQUIFERS AND COMPACTION 1973–2001 IN THE CHICOT AND EVANGELINE
AQUIFERS, HOUSTON-GALVESTON REGION, TEXASBy
L.S. Coplin and Jennifer Lanning-Rush2002
IN COOPERATION WITH THEHARRIS-GALVESTON COASTAL SUBSIDENCE DISTRICT,
CITY OF HOUSTON, ANDFORT BEND SUBSIDENCE DISTRICT
Boundary of study area
EXPLANATION
Updip limit of Jasper aquifer (University ofTexas, Bureau of Economic Geology, 1968,1974)
Measured water-level change at wellsbetween 2001 and 2002–Numberindicates magnitude of change
Decline of more than 50 feet
Decline of 21 to 50 feet
Decline of 11 to 20 feet
Decline of 1 to 10 feet
No change
Rise of 1 to 10 feet
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1
14
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14 62
51
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25 21
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24 20
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18
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