Ground Water Resources of Colorado, Lavaca, and Wharton Counties, Texas Page: 7
vi, 240, [3] p. : ill., mapsView a full description of this report.
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In addition to the inventory of wells and test
holes, the following items of work were included in the
investigation:Figure 3.-Average Monthly Gross Lake-Surface Evaporation
in Colorado, Lavaca, and Wharton Counties, 1940-65
1. Electrical logs of water wells and oil tests
were analyzed to construct geohydrologic sections, to
construct maps showing the thicknesses of sands in the
principal aquifers, to determine the altitudes of the base
of fresh and slightly saline water, and to determine the
altitudes of the base of the Chicot and Evangeline
aquifers.
2. An inventory was made of the withdrawals
of ground water for public supply, industrial use, and
irrigation.
3. Drillers' logs of wells were collected and
analy zed (Table 6).
4. Forty-three aquifer tests were made in wells
in the Chicot, Evangeline, and Jasper aquifers. The
information obtained from these tests provided data for
the computations of transmissivities, storage
coefficients, and hydraulic conductivities.
5. Climatological records were collected and
compiled.
6. Water levels in wells were measured, and
historical records of water levels were analyzed to
determine the long-term hydrologic effects of
ground-water pumping (Table 7).
7. Data on land-surface subsidence were
collected and analyzed.
8. Water samples were collected and analyzed
to determine the chemical quality of the water in the
principal aquifers (Table 8).I I I I I I I I I I
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Jackson
MatagordaAuthor and date1
Baker (1965)
Hammond (1969)1See references cited
- 7-
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Previous Investigations
Taylor (1902, 1907), in generalized hydrologic
studies of the Gulf Coastal Plain, furnished the earliest
information available on ground water in Colorado,
Lavaca, and Wharton Counties. His work is the source of
the water-level data used to determine the original
(predevelopment) altitudes of the potentiometric
surfaces in the aquifers.
George (1936) compiled information on wells and
test holes, water quality, and drillers' logs in Lavaca
County. May (1938) inventoried wells in Colorado
County and assembled drillers' logs and chemical
analyses of ground-water samples. Bridges (1935)
compiled well records, drillers' logs, and chemical
analyses of water samples for Wharton County; and
Cromack (1940) provided additional well records,
drillers' logs, and water analyses for Wharton County.
Barnes (1948) presented a detailed discussion of the
water resources of Wharton County, including well
records, drillers' logs, and chemical analyses.
Water levels in a few selected wells in Colorado,
Lavaca, and Wharton Counties have been measured
annually by either the U.S. Geological Survey or the
Texas Department of Water Resources since 1934, and
in other wells since 1956. Historical water-level
measurements in Jackson, Matagorda, and Wharton
Counties were reported by Rayner (1958). Wood (1956)
reported on ground-water availability on the Texas Gulf
Coast, including Colorado, Lavaca, and Wharton
Counties. Wood, Gabrysch, and Marvin (1963) collected
field data and prepared a report on the water-bearing
potential of the principal aquifers in the Gulf Coast
region, .including the area of Colorado, Lavaca, and
Wharton Counties.
Mount and others (1967) made a reconnaissance
of the Colorado River basin that included parts of
Colorado and Wharton Counties. Because the
ground-water hydrology -of Wharton County and the
southern parts of Colorado and Lavaca Counties is
similar to the hydrology of other areas in which
investigations have been completed, the following
reports were useful in analyzing the hydrologic data
obtained for this report:
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Loskot, Carole L.; Sandeen, William M. & Follett, C. R. Ground Water Resources of Colorado, Lavaca, and Wharton Counties, Texas, report, July 1982; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth1203728/m1/15/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.