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Geohydrology of Pratt County

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Logs of Wells and Test Holes

Sample logs of test holes drilled or augered by the State Geological Survey of Kansas are given on the following pages. Additional logs are on file in the State and U.S. Geological Survey offices, Lawrence., Kans., and may be examined there.

26-11W-35ccc2--Sample log of test hole in the SW SW SW sec. 35, T. 26 S., R. 11 W., 30 feet east of big corner cottonwood tree; drilled June 1964. Altitude of land surface, 1,787.0 feet; depth to water, 17.7 feet. Thickness,
feet
Depth,
feet
Quaternary System
Pleistocene Series
Dune sand
Soil, silty, black11
Silt, tan12
Loveland and Crete Formations
Clay, tan, and caliche24
Clay, white, and caliche26
Clay, fight-olive915
Clay, buff, with sand streaks823
Clay, sandy and silty, light-gray, with fine to coarse sand streaks528
Sappa and Grand Island Formations
Clay, yellow, with caliche layer230
Sand, fine to medium232
Sand, fine to coarse, gravelly739
Clay, white, with caliche nodules140
Clay, very light gray, with caliche layers444
Clay, tan448
Sand, fine to medium, silty654
Sand, fine to coarse, and some gravel761
Sand, fine to medium, silty, slightly clayey, yellow-stained162
Sand, fine to medium567
Sand, fine to coarse, and fine gravel streaks1683
Permian System
Lower Permian Series
Nippewalla Group
Claystone, reddish-brown1295
Shale, silty, red-spotted gray5100

26-12W-34cdd--Sample log of observation well in the SE SE SW sec. 34, T. 26 S., R. 12 W., at south edge of railroad right-of-way and 200 feet east of intersection with county road; drilled July 1964. (Two casings in same hole with sand points at 145 and 210 feet.) Altitude of land surface, 1,883.6 feet; depth to water, 44.1 and 46.3 feet, respectively. Thickness,
feet
Depth,
feet
Quaternary System
Pleistocene Series
Dune sand
Silt, dark-brown11
Clay, dark-brown12
Silt, buff46
Loveland and Crete Formations
Clay, silty, tan, with caliche28
Silt, light-gray, with clay and caliche streaks412
Sand, fine to medium, silty, tan and orange-tan2234
Sappa and Grand Island Formations
Sand, fine to medium, silty, tan, with abundant caliche2054
Clay, tan, with caliche and tan silt streaks862
Sand, fine to coarse, with fine gravel3395
Clay, tan and white, and silt and caliche streaks7102
Sand, fine to medium, silty, tan and light-gray8110
Silt, tan, with clay and sand streaks10120
Sand, fine to coarse, with tan and light-gray silt and clay streaks12132
Sand, fine to medium17149
Fullerton and Holdrege Formations
Silt, tan, with white clay and caliche3152
Sand, fine to coarse2154
Sand, fine to medium, silty, tan and yellow, with light-gray clay streaks10164
Sand, fine to medium, with fine gravel; contains ironstone22186
Sand, fine to medium, with cemented zones14200
Sand, fine to coarse, with fine to medium gravel; contains ironstone9209
Permian System
Lower Permian Series
Nippewalla Group
Siltstone, reddish-brown6215

27-11W-32daa--Sample log of test hole in the NE NE SE sec. 32, T.27 S., R.11 W.; drilled 1964. Altitude of land surface, 1,706.9 feet. Thickness,
feet
Depth,
feet
Quaternary System
Pleistocene Series
Alluvium and terrace deposits
Clay, silty, calcareous, dark-gray; contains some fine to medium sand44
Clay, calcareous, gray37
Sand, coarse to very coarse, and dark-gray calcareous silty clay; contains some very fine gravel613
Clay, calcareous, bluish-gray1.514.5
Clay, silty, calcareous, tan9.524
Clay, silty, calcareous, gray226
Gravel, very fine to fine, arkosic, and very coarse sand2.528.5
Sand, coarse to very coarse, arkosic; contains clay stringer at 51 feet31.560
Fullerton and Holdrege Formations
Sand, coarse to very coarse; contains some very fine gravel and calcareous clay stringer for 3 feet at 73.5 feet2080
Sand, coarse to very coarse, arkosic, derived from Cretaceous rocks17.597.5
Sand, very coarse, and pink calcareous clay299.5
Permian System
Lower Permian Series
Nippewalla Group
Siltstone and sandstone, calcareous, red to grayish-green6.5106

27-15W-2abb--Sample log of test hole in the NW NW NE sec. 2, T. 27 S., R. 15 W.; drilled June 1964. Altitude of land surface, 2,039.0 feet; depth to water, 26 feet. Thickness,
feet
Depth,
feet
Quaternary System
Pleistocene Series
Dune sand
Silt, brown33
Silt, tan1518
Loveland and Crete Formations
Silt, very clayey, tan422
Silt, very clayey, very light gray; contains abundant ironstain spots1638
Sand, fine to coarse745
Clay, orange146
Sand, fine to coarse, clayey, yellowish-brown450
Sand, fine to coarse; contains few orange clay streaks1868
Sand, fine to coarse, with fine gravel, yellow-stained270
Gravel, fine to medium474
Sappa and Grand Island Formations
Clay, sandy, white377
Gravel, coarse, sandy380
Sand, fine to coarse, and gravel45125
Sand, very clayey, tan and light-gray; contains some caliche10135
Sand, fine to coarse, with fine gravel5140
Sand, fine to coarse; contains streaks of gravel and clay10150
Sand, fine to coarse, with fine gravel6156
Fullerton and Holdrege Formations
Clay, sandy, light-gray; contains caliche near top24180
Sand, fine to coarse, with light-gray clay and caliche streaks10190
Sand, fine to coarse, silty10200
Sand, fine to coarse, silty, with tan clay streaks and caliche nodules10210
Sand, fine to coarse, silty20230
Cretaceous System
Lower Cretaceous Series
Kiowa Formation
Shale, black24254
Sandstone, fine- to medium-grained, quartzose, very hard2256

28-13W-26dcb2--Sample log of observation well in the NW SW SW see. 26, T. 28 S., R. 13 W., 225 feet south and 40 feet west of irrigation well on east edge of drainage ditch; drilled July 1964. Altitude of land surface, 1,916.4 feet; depth to water, 94 feet. Thickness,
feet
Depth,
feet
Quaternary System
Pleistocene Series
Loveland and Crete Formations
Silt, clayey, brown44
Clay, light-gray26
Clay, silty, tan28
Clay, silty, buff; contains white clay streaks715
Sand, fine to medium, silty318
Silt, tan and buff; contains caliche and clay streaks725
Sappa and Grand Island Formations
Clay, tan, buff, and light-gray; contains caliche and white clay streaks1540
Silt, slightly clayey, buff; contains fine to medium sand streaks1555
Sand, fine to coarse, orange; contains streaks of fine gravel762
Gravel, fine, sandy668
Clay, tan, yellow-stained in part270
Silt, tan and buff575
Sand, fine to coarse; contains tan silt streaks580
Clay, light-gray and white; contains caliche383
Silt, buff and tan588
Silt, buff and tan; contains caliche492
Silt, buff and tan395
Sand, fine to medium, orange7102
Sand, fine to coarse, with fine to medium gravel23125
Silt, clayey, light-gray and tan; contains caliche2127
Gravel, fine, sandy; contains a few clay streaks23150
Fullerton and Holdrege Formations
Silt, buff; contains white and tan clay and caliche2152
Sand, fine to coarse, with fine to medium gravel; contains ironstone toward base23175
Silt, yellow, and light-gray clay; contains caliche2177
Sand, fine to coarse, with fine to medium gravel; contains ironstone9186
Silt, tan, and pink clay; contains caliche1187
Sand, fine to coarse, with fine to medium gravel; contains ironstone6193
Clay, white1194
Sand, fine to medium, quartzose5199
Permian System
Upper or Lower Permian Series
Whitehorse Formation or Nippewalla Group
Siltstone, reddish-brown11210

29-11W-21ccc--Sample log of test hole in the SW SW SW sec. 21, T. 29 S., R. 11 W., 300 feet east of intersection; drilled June 1964. Altitude of land surface, 1,847.0 feet; depth to water, 61.3 feet. Thickness,
feet
Depth,
feet
Quaternary System
Pleistocene Series
Dune sand
Silt and fine sand, buff33
Silt with fine sand, slightly clayey, black36
Silt, very clayey, buff, tan, and light-gray39
Silt with fine sand, slightly clayey, buff413
Loveland and Crete Formations
Clay, tan, light-green, yellow, and orange417
Clay, white; contains caliche421
Silt, slightly clayey, buff526
Sappa and Grand Island Formations
Clay, grayish-green127
Clay, white; contains caliche128
Clay, grayish-green, tan, and white; contains caliche nodules in center third1543
Caliche with white clay, massive144
Silt, slightly clayey, orange-buff; contains caliche nodules751
Clay, sandy and silty in part, grayish-green, tan, and white; contains caliche streaks1667
Sand, fine, silty, tan, pink, and orange-brown1178
Sand, fine to coarse, with fine to medium gravel toward base, black-stained684
Gravel, fine to coarse, sandy30114
Sand, fine to medium, silty, slightly clayey, tan and orange-brown7121
Clay, tan1122
Sand, fine to coarse4126
Gravel, fine to coarse9135
Fullerton and Holdrege Formations
Caliche2137
Sand, fine to coarse, clayey, pinkish-tan; calcareous in lower third11148
Sand, fine to coarse6154
Sand, fine to coarse, with fine gravel2156
Caliche, massive4160
Sand, fine to coarse, silty10170
Sand, fine to coarse, with streaks of caliche and pink clayey silt14184
Sand, fine to coarse, with fine gravel; contains ironstone3187
Permian System
Lower Permian Series
Nippewalla Group
Siltstone, clayey, reddish-brown6193
Lost circulation 193

29-15W-11ddd--Sample log of test hole in the SE SE SE sec. 11, T. 29 S., R. 15 W., 75 feet west of intersection; drilled June 1964. Altitude of land surface, 2,008.2 feet. Thickness,
feet
Depth,
feet
Quaternary System
Pleistocene Series
Loveland and Crete Formations
Silt, black11
Silt, clayey, dark-brown12
Silt, very clayey, buff; contains caliche nodules46
Sappa and Grand Island Formations
Silt with fine sand, buff; contains a few white clay and caliche streaks1117
Sand, fine to medium, silty; contains a few white clay and caliche streaks1027
Sand, fine to medium, with fine to medium gravel1340
Clay, white and yellow242
Clay, yellow and grayish-green; contains some caliche345
Sand, fine to coarse, with fine to medium gravel; contains a few tan and olive clay streaks3782
Clay, orange183
Sand, fine to coarse; contains some black-stained fine to medium gravel1295
Gravel, fine to coarse, sandy62157
Fullerton and Holdrege Formations
Clay, grayish-green2159
Silt, sandy and clayey, pink20179
Clay, grayish-green1180
Permian System
Upper Permian Series
Whitehorse Formation
Siltstone, pink and reddish-brown10190
Siltstone, clayey, reddish-brown10200

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Kansas Geological Survey, Geology
Placed on web Aug. 18, 2008; originally published Feb. 1973.
Comments to webadmin@kgs.ku.edu
The URL for this page is http://www.kgs.ku.edu/General/Geology/Pratt/08_logs.html