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Logs of Wells and Test Holes

T. 13 S. || T. 14 S. || T. 15 S. || T. 16 S. || T. 17 S. || T. 18 S.

15-29-13bb1--Sample log of test hole in the NW cor. sec. 13, T. 15 S., R. 29 W., Gove County, hand-augered December 5,1951. Surface altitude, 2,454.3 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn and Meade formations undifferentiated
Clay, silty, calcareous, hard, light brown; contains isolated patches of very fine quartz sand 3 3
Clay, calcareous, light greenish buff; contains some poorly sorted, subrounded sand and gravel 3 6
Clay, calcareous, pale greenish buff; contains some silt 13.5 19.5
Clay, calcareous, white; contains much sand and gravel .5 20
Cretaceous--Gulfian
Niobrara formation--Smoky Hill chalk member
Chalk, hard, light gray, some dark-brown streaks that are nearly white when dry, and many disseminated black flecks .4 20.4

15-29-13bb2--Sample log of test hole in the SW NW NW sec. 13, T. 15 S., R. 29 W., Gove County, jetted December 6, 1951. Surface altitude, 2,448.2 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, dark brown 2 2
Sand, quartz, fine to coarse; contains some slightly calcareous clay 13 15
Sand and gravel, quartz; contains some calcareous clay and chalk fragments 16 31
Sand and gravel, quartz; contains calcareous silt 9 40
Sand and gravel, quartz; contains some calcareous pale-greenish-gray clay 21 61
Sand, fine to coarse; contains some quartz pebbles and calcareous, pale-greenish-gray clay 6.4 67.4
Cretaceous--Gulfian
Niobrara formation--Smoky Hill chalk member
Chalk, clayey, gritty, hard, pale gray to buff .1 67.5

15-29-13bc--Sample log of test hole in the SW SW NW of sec. 13, T. 15 S., R. 29 W., Gove County, jetted December 5 and 6, 1951. Surface altitude, 2,449.5 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Sand, quartz and some mafic minerals, fine to coarse; contains some silt 1 1
Sand, quartz and some mafic minerals, medium to coarse; contains some silt 6 7
Sand, fine to coarse, and fine to coarse gravel; contains a few chalky fragments 20.5 27.5

15-33-11ab--Sample log of test hole in the SE NW NE sec. 11, T. 15 S., R. 33 W., Logan County, jetted and driven December 7, 1951. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Clay, light brown; contains some silt and calcareous matter 2 2
Silt, sandy, and clay; grayish brown, slightly calcareous 5 7
Sand and gravel; chiefly quartz but contains some felsic and mafic minerals and some silt 12 19
Cretaceous--Gulfian
Niobrara formation--Smoky Hill chalk member
Chalk, hard, gray; contains many disseminated black flecks .2 19.2

15-33-13cb--Sample log of test hole in the NW SW sec. 13, T. 15 S., R. 33 W., Logan County, jetted December 11, 1951. Surface altitude, 2,754.8 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, dark brown; contains quartz sand and some felsic and mafic minerals 2.5 2.5
Sand, fine; contains silt, angular calcareous pebbles, and felsic gravel 3.5 6
Sand, quartz, medium to very coarse; contains a few scattered felsic and mafic minerals; contains a few calcareous fragments at 18 to 22 feet 16 22
Sand, coarse, and fine to medium gravel; contains gray clay and many chalky grains 1 23
Cretaceous--Gulfian
Niobrara formation--Smoky Hill chalk member
Chalk, hard, gray; contains disseminated black flecks .1 23.1

15-36-19bb--Sample log of test hole in the NW NW sec. 19, T. 15 S., R. 36 W., Logan County, drilled by State Geological Survey, 1951. Surface altitude, 3,372 feet. Thickness,
feet		 Depth,
feet
Soil, silt, and clay, black 2 2
Quaternary--Pleistocene
Sanborn formation
Silt, tan gray; contains some tan clay 10 12
Silt, tan gray and brown; contains some tan clay 7 19
Tertiary--Pliocene
Ogallala formation
Clay, limy to silty, tan to light tan 10.5 29.5
Sand, fine to coarse, and tan, silty to sandy, imbedded clay 5.5 35
Sand, fine to coarse; contains some limy to sandy clay 14 49
Opaline quartzite 5.5 54.5
Sand, fine to coarse, and some clay 6.5 61
Sand, fine to coarse, and tan-yellow clayey silt 5 66
Cretaceous--Gulfian
Niobrara formation--Smoky Hill chalk member
Chalk, silty, yellow to yellow orange 5.5 71.5
Chalk, clayey, gray 2 73.5

15-38-17da--Sample log of test hole in the NE SE sec. 17, T. 15 S., R. 38 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,508.7 feet. Thickness,
feet		 Depth,
feet
Road fill 4.5 4.5
Quaternary--Pleistocene
Sanborn formation
Soil, silt, and clay, black 1 5.5
Silt, tan gray; contains some clay 8.5 14
Silt, brown; contains fine sand 5 19
Tertiary--Pliocene
Ogallala formation
Clay, sandy, tan 5 24
Sand and gravel, fine to coarse, and some tan sandy clay 6 30
Sand, fine to coarse, and fine gravel; contains some cemented fine sand and some opaline chert 18 48
Clay, sandy, limy, light tan; contains imbedded fine to coarse sand 5 53
Clay. sandy, gray green 3 56
Clay, limy to sandy, light tan to brown 9 65
Clay, silty to very sandy, tan brown 6 71
Sand and gravel 8 79
Sand and clay, interbedded, limy, light tan 8 87
Clay, silty, gray 4 91
Sand, fine, and limy clay, tan to gray 6 97
Clay, silty to sandy, brown 5 102
Sand, fine 16 118
Sand and sandy clay 4 122
Sand, fine to coarse; contains some yellow and tan clay 12 134
Cretaceous--Gulfian
Pierre shale
Shale, silty, yellow 7 141
Shale, silty, dark gray 3 144

15-38-33cd--Sample log of test hole in the SE SW sec. 33, T. 15 S., R. 38 W., Wallace County, drilled by State Geological Survey. 1951. Surface altitude, 3,505.2 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Soil, silt, and clay, black 2 2
Silt, tan gray 15 17
Clay, silty, tan gray 1 18
Clay, silty, tan brown to light tan 11 29
Tertiary--Pliocene
Ogallala formation
Silt, light gray to white 10 39
Silt and silty clay, tan brown 8 47
Clay, very silty. interbedded with fine to coarse sand; light gray 9 56
Sand, fine to coarse, cemented, silty, brown 11 67
Sand, fine to coarse, and gravel; contains some clay 10 77
Sand, fine to coarse; contains some clay at 74 and at 76 feet and some gravel 17 94
Clay, sandy, brown; interbedded with sand 10 104
Clay, sandy, light gray 2 106
Sand, fine to coarse; contains some fine to medium gravel 11 117
Clay, silty, tan to tan gray; contains some imbedded sand 18 135
Sand, fine to coarse; contains some brown silt and tan-brown clay 35 170
Clay, sandy, blocky, limy, light gray 5 175
Sand, fine to coarse; contains some tan-brown clay 10 185
Sand, fine to coarse; contains some blocky clay 10 195
Sand, fine to coarse 31 226
Cretaceous--Gulfian
Niobrara formation--Smoky Hill chalk member
Chalk, yellow to white 3.5 229.5
Chalk, silty, gray 3.5 233

15-39-20dd--Sample log of test hole in the SE SE sec. 20, T. 15 S., R. 39 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,572.8 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Soil, silt, and clay; black 3 3
Silt and some clay, tan gray 11 14
Tertiary--Pliocene
Ogallala formation
Clay, tan to tan brown 8 22
Clay, sandy, tan; contains imbedded fine to coarse sand 6 28
Clay, limy, green blue to gray 1.5 29.5
Sand, fine to coarse, tan brown to light tan 3.5 33
Clay and calcareous silt; light tan to light gray 4 37
Sand, fine to medium, and tan to light-tan clay 11 48
Clay, sandy, tan brown 7 55
Sand, very fine, silty, tan gray 12 67
Sand, fine to coarse, and some fine gravel 30 97
Sand, coarse to fine; contains some fine gravel 10 107
Sand, coarse to fine; contains some fine gravel and clay 10 117
Sand, coarse to fine; contains some gravel 4 121
Sand and clayey sand, limy, tan 4 125
Sand, fine to coarse, and fine gravel; contains some clay 14 139
Clay, sandy, limy, tan and light tan 9 148
Sand, fine to medium; contains some coarse sand and clay 10 158
Sand, fine to coarse; contains some gravel and tan to light-tan sandy clay 20 178
Sand, fine to coarse; contains some fine to medium gravel and tan to light-tan sandy clay 24 202
Cretaceous--Gulfian
Pierre shale
Shale, silty, yellow 5.5 207.5
Shale, clayey, dark gray; contains some blue clayey shale 2.5 210

15-40-11bb--Sample log of test hole in the NW NW sec. 11, T. 15 S., R. 40 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,614.6 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Soil, silt, and clay, black 1 1
Silt, tan gray; contains some clay 4 5
Sand, fine to medium, and tan silt 9 14
Tertiary--Pliocene
Ogallala formation
Clay, silty, tan gray 2 16
Sand, fine to coarse 8 24
Clay and silt, sandy, tan to white 5 29
Clay, sandy, tan, and tan-brown clayey sand 2 31
Clay, sandy, gray green 2 33
Sand, fine to coarse, clayey, tan brown 3 36
Sand, fine to coarse, and fine gravel, limy; contains some clay 20 56
Clay, silty and limy, tan gray to light gray 4 60
Clay, sandy to very sandy, brown 8 68
Sand, fine to coarse; contains some clay 13 81
Sand, fine to medium, and gray clay, interbedded 11 92
Sand and gravel, fine to coarse 9 101
Clay, limy, tan to light tan 6 107
Sand, fine to coarse, and fine to medium gravel; contains some clay 13 120
Sand, fine to coarse, and fine to medium gravel; contains some clay 11 131
Clay, silty to sandy, tan 5 136
Sand, fine to coarse 17 153
Clay, limy, light tan to tan 5 158
Clay, silty to very silty, limy, light tan, and fine to medium sand, interbedded 10 168
Sand, fine to medium, and tan limy clay 10 178
Sand, fine to coarse; contains some brown sandy clay 10 188
Sand, fine to coarse 39 227
Cretaceous--Gulfian
Pierre shale
Shale, silty, yellow 5 232
Shale, clayey, gray 3 235

15-40-23cc--Sample log of test hole in the SW SW sec. 23, T. 15 S., R. 40 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,646.0 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Soil, silt, and clay, black 2.5 2.5
Silt, tan gray 11 13.5
Tertiary--Pliocene
Ogallala formation
Clay, silty, tan gray 5.5 19
Clay, limy, tan; contains imbedded sand in lower part 10 29
Silt to fine sand, cemented, limy, white to tan 5 34
Silt and clay, very sandy, cemented, tan to light tan; contains some coarse sand grains 17 51
Clay, silty to sandy, green gray 1.5 52.5
Sand, fine to coarse, and fine to coarse gravel 23.5 76
Clay to clayey sand, tan gray; contains imbedded gravel 10 86
Sand, fine to coarse, clayey, tan gray 10 96
Clay, sandy, tan to tan brown; contains imbedded medium to coarse sand 11 107
Sand, fine to coarse, clayey in parts, tan gray 7 114
Clay, sandy, tan gray 4 118
Sand, fine to coarse; contains some tan sandy clay 10.5 128.5
Clay, sandy, tan gray 4.5 133
Clay, tan, and fine sand, interbedded 17 150
Sand, fine to coarse, and fine gravel 17 167
Sand, fine to medium, and sandy clay; brown to tan gray 9 176
Sand, fine to coarse; contains some tan to light-tan clay 66 242
Cretaceous--Gulfian
Pierre shale
Shale, silty, yellow 6 248
Shale, silty, very soft, gray to dark gray 9 257

15-41-2aa--Sample log of test hole in the NE NE sec. 2, T. 15 S., R. 41 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,758.3 feet. Thickness,
feet		 Depth,
feet
Road fill and soil, silt, and clay, black 2.5 2.5
Quaternary--Pleistocene
Sanborn formation
Silt, tan gray; contains some clay 8 10.5
Tertiary--Pliocene
Ogallala formation
Clay, limy, silty, light tan to light brown 16.5 27
Silt and fine sand, clayey, cemented, brown to tan brown 11 38
Sand and gravel, fine to coarse; contains interbedded cemented fine tan-brown sand and silt 18 56
Sand, fine to coarse; contains tan to tan-brown silty sand 6 62
Sand, fine to coarse, and fine gravel; contains some tan clay 12 74
Clay, sandy, brown; contains imbedded sand and gravel 7 81
Sand and gravel, fine to coarse 11 92
Clay, silty, tan brown; contains some imbedded sand 8 100
Clay, sandy, brown 10 110
Clay and sand, interbedded, tan brown; contains some light-tan to light-gray limy silt 7 117
Sand, coarse, and fine to medium gravel; contains some silt 10 127
Sand, coarse, and fine to medium gravel; contains silt and silty to compact clay 10 137
Sand, coarse, and fine to medium gravel 20 157
Sand, coarse, and fine to medium gravel; contains some clay 17 174
Clay, limy to silty, tan white 5 179
Clay, sandy, containing interbedded sand and gravel, gray brown 10 189
Sand, fine to coarse, and some fine gravel; contains some gray-brown sandy clay 20 209
Sand, fine to coarse, and some fine gravel; contains some clay 10 219
Sand, fine to coarse, and fine gravel 40 259
Sand, fine to coarse; contains some fine gravel and tan-brown silt 30.5 289.5
Sand, fine to coarse, interbedded with gray-white sandy clay 5 294.5
Cretaceous--Gulfian
Pierre shale
Shale, clayey, dark gray 5.5 300

15-41-19cc--Sample log of test hole in the SW SW sec. 19, T. 15 S., R. 41 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,840.4 feet. Thickness,
feet		 Depth,
feet
Road fill 1.5 1.5
Quaternary--Pleistocene
Sanborn formation
Silt and clay, tan 7.5 9
Tertiary--Pliocene
Ogallala formation
Clay, very limy, light tan to white 7 16
Sand and gravel, fine to coarse 6 22
Clay and clayey sand, limy, tan to light tan 22.5 44.5
Sand, medium to coarse, and fine gravel; contains brown sandy clay 7.5 52
Sand and clay, interbedded 16 68
Sand and gravel, coarse to fine; contains some brown sandy clay 7 75
Clay, silty to sandy, gray brown 21 96
Clay, sandy, tan brown; contains imbedded medium to fine sand and a silty limy stringer at 105 feet 12 108
Clay and fine to medium sand, interbedded 7 115
Sand, fine to coarse 4 119
Sand, fine to coarse, clayey, brown, and light-gray limy clay, interbedded 4 123
Clay, silty, limy, tan gray to light tan 8 131
Sand, fine to medium, clayey, tan 9 140
Sand, fine to coarse, clayey, tan brown 10 150
Sand and sandy clay, tan to tan brown; contains stringer of limy clay at lS5 feet 10 160
Sand, fine to coarse, and fine gravel; interbedded with gray-brown sandy clay 10 170
Sand and gravel 17.5 187.5
Bentonite, white .5 188
Clay, limy to sandy, brown to gray 4 192
Clay, sandy, brown, imbedded with fine to coarse sand 34 226
Cretaceous--Gulfian
Pierre shale
Shale, silty, yellow 11 237
Shale, clayey, dark gray 3 240

15-41-23dd--Sample log of test hole in the SE SE sec. 23, T. 15 S., R. 41 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,714.9 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Soil, silt, and clay, dark gray to black 2 2
Silt, tan to tan gray; contains some tan clay 8 10
Tertiary--Pliocene
Ogallala formation
Clay and silt, sandy, limy, tan to light tan 12 22
Sand, fine, silty, cemented, brown 6 28
Silt and clayey sand, limy, tan to light tan and gray white 10 38
Clay, limy, silty, light tan 2 40
Sand, silty to clayey, tan brown to tan; contains some light-tan limy clay 10 50
Sand, very silty to clayey, tan brown to tan 10 60
Clay and gravel, interbedded, brown to tan gray; contains some fine to medium sand 8 68
Sand and gravel, fine to coarse; contains some clay 15 83
Clay, sandy to silty, brown to gray brown 16.5 99.5
Clay, gray tan to tan brown; contains some imbedded fine gravel 20.5 120
Sand, medium to fine, clayey, tan; contains some clay 10 130
Sand, fine to medium, and sandy clay, tan to light tan 12 142
Sand, fine to coarse, and fine silty gravel 10 152
Sand, fine to coarse; contains limy clay 9 161
Sand, fine to coarse, and fine to medium gravel 29 190
Sand, fine to coarse, and clayey sand, interbedded 30 220
Sand, fine to coarse; contains some clay 10 230
Sand, fine to medium, silty 10 240
Sand, fine to coarse, silty 7 247
Cretaceous--Gulfian
Pierre shale
Shale, silty, yellow 10 257
Shale, clayey, dark gray 3 260

15-42-20bb--Sample log of test hole in the NW NW sec. 20, T. 15 S., R. 42 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,904.9 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Soil, silt, and clay, gray tan 1.5 1.5
Silt, clayey, tan gray 12.5 14
Tertiary--Pliocene
Ogallala formation
Clay, containing imbedded sand and gravel, limy, tan brown to light gray 4 18
Sand, medium to coarse, and fine to medium gravel 10 28
Gravel, very coarse; contains some coarse sand 9 37
Clay, sandy, limy, light gray and tan to tan brown 10 47
Clay, sandy, tan brown 10 57
Clay, very sandy, tan brown 15 72
Sand, coarse; contains some clay 8 80
Sand, coarse, and fine to medium gravel; contains some tan clay 3 83
Clay, sandy, tan to tan gray 9 92
Sand, fine, and some tan clay 31 123
Clay, very sandy and limy; contains some imbedded coarse and medium sand 4 127
Sand, fine to coarse, and fine to medium gravel 13 140
Sand, fine to coarse, and fine to medium gravel; contains some clay 10 150
Sand, fine to coarse, and fine to medium gravel; contains some imbedded tan sandy clay 20 170
Sand, fine to coarse, and fine to coarse gravel; contains some interbedded tan-brown clay 10 180
Clay, limy, tan to light gray 7 187
Sand, fine to coarse, and fine to medium gravel, clayey, tan brown 20 207
Sand, fine to coarse, and fine to medium gravel, clayey, tan, brown, and yellow 10 217
Sand and gravel, fine to coarse; contains some yellow silty clay 8 225
Cretaceous--Gulfian
Pierre shale
Shale, clayey, dark gray 2 227

15-42-32dc--Sample log of test hole in the SW SE sec. 32, T. 15 S., R. 42 W., Wallace County, drilled by State Geological Survey, 1951. Surface altitude, 3,882.6 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Soil, silt, and clay, tan gray to dark gray 2.5 2.5
Silt and clay, tan to tan gray 6.5 9
Sand, fine to medium fine, silty, tan 8 17
Tertiary--Pliocene
Ogallala formation
Clay, silty and sandy, limy, light tan to tan and tan brown 11 28
Clay, medium hard, gray tan 2 30
Sand, fine to coarse; contains some clay 6 36
Clay, limy to silty, tan; contains some sand 21 57
Sand and gravel, coarse to fine 8 65
Sand, fine to coarse, and clay, interbedded, tan brown 6 71
Sand, fine to coarse, and fine to coarse gravel 7 78
Clay, silty, brown 6 84
Clay, silty to sandy, tan brown; contains some imbedded sand 4 88
Clay and clayey sand; contains some light-tan limy clay 13 101
Clay, very sandy, brown to red brown 4 105
Sand, fine to coarse 2 107
Clay, sandy, limy, tan brown and light tan to gray 4 111
Sand, coarse to fine; contains some tan clay 6 117
Clay, limy and silty, light gray 4 121
Sand, coarse to fine; contains some gravel and light-tan limy clay 10 131
Sand, coarse to fine; contains some coarse to fine gravel 15 146
Clay, sandy, limy, tan to light tan 11 157
Sand, coarse, and fine to medium gravel; contains some limy clay 14 171
Sand, coarse, and fine to medium gravel, clayey 8 179
Clay, limy and sandy, tan gray to light gray 7 186
Sand, fine to coarse, fine to medium gravel, and tan-gray to gray-green sandy clay 11 197
Clay, sandy, tan gray; contains some imbedded sand and gravel 11 208
Sand, very fine 6 214
Sand and clay, interbedded, tan to light tan 13 227
Sand, medium to coarse, and fine to medium gravel; contains some clay 25 252
Cretaceous--Gulfian
Pierre shale
Shale, silty to sandy, yellow 3.5 255.5
Shale, clayey, gray 2.5 258

T. 13 S. || T. 14 S. || T. 15 S. || T. 16 S. || T. 17 S. || T. 18 S.

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Kansas Geological Survey, Geology
Placed on web Jan. 29, 2013; originally published December 1957.
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