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Ellis, Trego, and Rush Co. Geohydrology

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Logs of Test Holes

Given on the following pages are logs of 41 drilled test holes, 9 drilled observation wells, 80 jetted observation wells, and 1 oil well. The logs are arranged by township from north to south and by range from east to west. Within a township they are arranged by section number. An explanation of the numbering system is given on page 13 and a diagram is shown in Figure 2, Two test holes were drilled by the State Geological Survey in 1944, 39 test holes and 9 observation wells were drilled in 1949, and 80 observation wells were jetted in 1950. Samples of the materials penetrated in the test holes and observation wells were examined in the field by geologists who supervised the drilling and prepared the logs. The samples subsequently were studied microscopically by D, W, Berry and A. R. Leonard. General locations of the test holes are shown on Plates 2 and 3. Logs of test holes 2, 5, 6, 7, 39, 40, 41, 44, and of Hays wells 3, 15, and 20 on cross section C-G of Plate 3 are given by Latta (1948).

13-16-31cc--Sample log of drilled test hole in SW SW sec. 31, T. 13 S., R. 16 W., 45 feet north and 12 feet east of center of crossroads, Ellis County, Surface altitude, 1,973.3 feet; water level, 15.65 feet, November 5, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Undifferentiated
Silt, compact, brown 3 3
Silt, compact, light gray 3 6
Silt, slightly calcareous, buff 3 9
Silt, medium compact, slightly sandy, brown 2 11
Silt, tan; contains medium to coarse sand and gravel 3 14
Silt, sandy, light gray 2 16
Sand and gravel, medium to coarse; cemented layer at 18.5 to 19 feet 4 20
Sand and gravel, fine to coarse 6 26
Cretaceous
Carlile Shale--Fairport Shale member
Clay and shale, compact, calcareous, yellow to gray 2 28

13-17-36aa--Sample log of drilled test hole in NE NE sec. 36, T. 13 S., R. 17 W., 75 feet west and 10 feet south of center of crossroads, Ellis County. Surface altitude, 1,949.0 feet, water level, 19.38 feet, November 5, 1949. Thickness,
feet
Depth,
feet
Silt dark brown; contains sand and gravel (road fill) 2 2
Neogene--Pleistocene
Undifferentiated
Silt, medium compact, sandy, brown 2 4
Silt, medium compact, sandy, tan 3 7
Silt, slightly sandy 3 10
Silt, buff to white; contains some caliche 3 13
Silt, limy cement, tan and white to cream color; contains some caliche 4 17
Silt, cemented, sandy and clayey, cream color to white 4 21
Clay and gravel, medium to coarse quartz in calcareous clay 2 23
Cretaceous
Carlile Shale--Fairport Shale member
Shale and clay, compact, calcareous, yellow to gray 3 26

14-16-6cb--Sample log of drilled test hole in NW SW sec. 6, T. 14 S., R. 16 W., 0.3 mile north of corner and 9 feet east of center of road, Ellis County. Surface altitude, 1,949.0 feet; water level, 19.38 feet, November 5, 1949. Thickness,
feet
Depth,
feet
Silt, gray, dark gray, brown (road fill) 3 3
Neogene--Pleistocene
Undifferentiated
Silt, sandy, calcareous, dark brown 4 7
Silt, medium compact, sandy, calcareous, buff 1 8
Silt, tan; contains sand, gravel, and caliche 2 10
Silt, sandy, tan; contains caliche 4 14
Gravel, coarse, quartzose; contains fragments of limestone and shale and some cream-color to tan silt 6 20
Gravel and silt, tan silt and coarse quartz gravel, limy cement 3 23
Cretaceous
Carlile Shale--Fairport Shale member
Clay and shale, yellow to gray 7 30

14-16-7bc--Sample log of drilled test hole in SW NW sec. 7, T. 14 S., R. 16 W., 0.4 mile south of corner and 8 feet east of center of road, Ellis County. Surface altitude, 1,909.6 feet; water level, 24.57 feet, November 5, 1949. Thickness,
feet
Depth,
feet
Silt, compact, dark gray; contains some sand and gravel (road fill) 3 3
Neogene--Pleistocene
Terrace deposits
Silt, medium compact, sandy, tan 4 7
Silt, compact, slightly sandy, brown 3 10
Silt, medium compact, sandy, tan 7 17
Silt, sandy, buff; contains some coarse sand and caliche 5 22
Silt, sandy, buff; contains small amount of sand and gravel 2 24
Cretaceous
Carlile Shale--Fairport Shale member
Clay, sandy, calcareous, buff, yellow 2.5 26.5
Shale, compact, sandy, calcareous, dark gray 1.5 28

14-16-7cc--Sample log of drilled test hole in SW SW sec. 7, T. 14 S., R. 16 W., 80 feet east and 10 feet north of center of crossroads, Ellis County. Surface altitude, 1,902.3 feet; water level, 18.80 feet, November 5, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, compact, brown 4 4
Silt, sandy, light brown 3 7
Silt, medium compact, sandy, brown 3 10
Silt, sandy, tan to brown 4 14
Silt, slightly sandy, gray brown; contains some gravel 6 20
Silt, sandy, dark gray to gray; contains fragments of shells 5 25
Gravel, coarse, quartzose; contains many locally derived pebbles and some quartz sand 5 30
Gravel, very coarse, contains many locally derived pebbles 3 33
Cretaceous
Greenhorn Limestone
Shale, very compact, calcareous, dark gray 2 35

14-16-18cb--Sample log of drilled test hole in NW SW sec. 18, T. 14 S., R. 16 W., 38 feet south of half-mile line and 16 feet east of center of road, Ellis County. Surface altitude, 1,941.8 feet. Thickness,
feet
Depth,
feet
Silt, compact, dark brown 4 4
Neogene--Pleistocene
Undifferentiated
Silt, medium compact, slightly sandy, brown 5 9
Silt, calcareous, sandy, rust color to buff; contains caliche 8 17
Silt, compact, calcareous, buff; contains caliche 6 23
Silt, very sandy, calcareous, tan to buff 7 30
Silt, medium compact, sandy, buff 3 33
Silt and gravel 1.5 34.5
Cretaceous
Carlile Shale--Fairport Shale member
Clay and shale, compact, chalky, white to cream color; contains limestone 5.5 40

14-16-19bb2--Sample log of drilled test hole in NW NW sec. 19, T. 14 S., R. 16 W., 70 feet south and 15 feet east of center of crossroads, Ellis County. Surface altitude, 1,929.2 feet; water level, 38.50 feet, November 5, 1949. Thickness,
feet
Depth,
feet
Silt, dark brown; contains sand and gravel (road fill) 2.5 2.5
Neogene--Pleistocene
Undifferentiated
Silt, compact, sandy, slightly calcareous, gray 3.5 6
Silt, slightly calcareous, dark rusty brown; contains sand 4 10
Silt, sandy, calcareous, rusty brown; contains caliche 4 14
Silt, calcareous, slightly sandy, tan; contains caliche 4 18
Sand and tan silt; contains gravel 2 20
Gravel and tan silt; contains shell fragments 5 25
Silt, medium compact, sandy, calcareous 2 27
Gravel, medium to coarse, quartzose, stained black; contains some coarse sand 2 29
Silt, compact, brown 3 32
Cretaceous
Carlile Shale--Fairport Shale member
Clay, silty, soft, calcareous, buff 4 36
Chalk and shale, calcareous, cream color to light gray and white 4 40

14-16-19cc--Sample log of drilled test hole in SW SW sec. 19, T, 14 S., R. 16 W., 60 feet north and 18 feet east of center of crossroads, Ellis County. Surface altitude, 1,944.0 feet; water level, 28.45 feet, November 4, 1949. Thickness,
feet
Depth,
feet
Silt, dark brown; contains sand and gravel (road fill) 2 2
Neogene--Pleistocene
Undifferentiated
Silt, compact, calcareous, sandy, gray 2 4
Silt, compact, sandy, brown 3 7
Silt, compact, sandy, dark brown 2 9
Silt, calcareous, sandy, rusty brown 8 17
Silt, calcareous, buff to cream color; contains caliche and some gravel and sand 3 20
Silt, buff, and sand; contains fine to medium gravel 4 24
Sand, coarse, quartzose; contains fine to coarse gravel 3 27
Gravel, coarse, and chalk pebbles; contains a 6-inch layer of white silty caliche at 27 feet 5 32
Cretaceous
Carlile Shale--Fairport Shale member
Limestone, compact, chalky 8 40

14-16-30cc--Sample log of drilled test hole in SW SW sec. 30, T. 14 S., R. 16 W., 75 feet east and 7 feet north of center of crossroads, Ellis County. Surface altitude, 1,938.1 feet; water level, 55.10 feet, November 4, 1949. Thickness,
feet
Depth,
feet
Silt, compact, sandy, brown (road fill) 2 2
Neogene--Pleistocene
Undifferentiated
Silt, compact, sandy, calcareous, tan 2 4
Silt, sandy, calcareous, brown 2 6
Silt, sandy, calcareous, rusty brown 2 8
Silt, compact, sandy, calcareous, tan; contains caliche 7 15
Silt, compact, slightly sandy, calcareous, tan to buff 5 20
Silt, sandy, calcareous, buff 6 26
Clay, cream color to white; contains some caliche and sand 2 28
Silt, slightly sandy, calcareous, buff 4 32
Silt, calcareous, buff; contains some caliche 4 36
Silt, slightly sandy, calcareous, buff 6 42
Silt, compact, calcareous, gray buff; contains some sand 4 46
Silt, sandy, calcareous, buff; contains some gravel and sand 4 50
Silt, sandy, calcareous, tan; contains medium to fine gravel 4 54
Silt, sandy, calcareous 3 57
Gravel and silt, sandy; contains some shale fragments 7 64
Cretaceous
Greenhorn Limestone
Clay and shale, calcareous, gray to yellow; contains shell fragments and some sand 2 66
Shale, calcareous, dark gray 2 68

14-16-31cc--Sample log of drilled test hole in SW SW sec, 31, T, 14 S., R, 16 W., 80 feet east and 7 feet north of center of crossroads, Ellis County. Surface altitude, 1,928.9 feet; water level, 43.50 feet, November 4, 1949. Thickness,
feet
Depth,
feet
Silt, compact, dark brown (road fill) 2 2
Neogene--Pleistocene
Undifferentiated
Silt, slightly sandy, dark brown 3 5
Silt, sandy, brown 3 8
Silt, sandy, light rusty brown; contains caliche at 9 feet 6 14
Silt, sandy, calcareous, buff; contains caliche 6 20
Silt, compact, calcareous, sandy, buff 5 25
Silt, calcareous, buff to cream color 5 30
Silt, compact, calcareous, sandy, cream color to white 10 40
Silt, calcareous, buff, and fine to coarse gravel and sand 8 48
Gravel, coarse, and interbedded silt; contains some coarse sand 12 60
Gravel, fine to coarse; contains shell fragments 3 63
Cretaceous
Greenhorn Limestone
Clay, compact, light gray to white 1 64
Limestone and shale, very solid and medium solid layers interbedded, gray to dark gray 1 65

14-17-12da--Sample log of drilled test hole in NE SE sec. 12, T. 14 S., R. 17 W., 0.26 mile north of corner and 60 feet north and 40 feet east of U. S. Highway 40 stop sign, Ellis County. Surface altitude, 1,904.8 feet. Thickness,
feet
Depth,
feet
Silt, dark brown; contains gravel (road fill) 4 4
Neogene--Pleistocene
Terrace deposits
Silt, compact, calcareous, brown 4 8
Silt, compact, slightly sandy, calcareous 4 12
Silt, calcareous, tan; contains some calcium carbonate particles 5 17
Silt, compact, calcareous, iron stained, tan to gray 5 22
Silt, sandy, iron streaks, tan; contains some shell fragments 3 25
Gravel, coarse to very coarse; contains some coarse sand 3.5 28.5
Cretaceous
Greenhorn Limestone
Shale, compact, sandy, dark gray 1.5 30

14-18-9aa--Sample log of drilled test hole in NE NE sec. 9, T. 14 S., R. 18 W., 35 feet west of fourth power-line pole south of Big Creek and 45 feet east of city pipe line in field, Ellis County. Surface altitude, 1,981.5 feet; water level, 31.57 feet, October 28, 1949. Thickness,
feet
Depth,
feet
Soil, friable, silty, brown 2.5 2.5
Neogene--Pleistocene
Terrace deposits
Silt, plastic, dark gray to brown; contains clay layer at 5 feet 4.5 7
Sand, fine to coarse; contains fine gravel and brown silt 3 10
Sand, very fine and fine; contains small amount of coarse sand and gravel and caliche 10 20
Sand, fine to coarse, and fine to coarse gravel; contains quartz and granite pebbles as much as 1/2 inch in diameter and shale and limestone pebbles 8 28
Clay, plastic, blue gray, and brown silt 2 30
Gravel, fine to coarse, pebbles as much as 1/2 inch in diameter; contains coarse sand 10 40
Gravel, medium to coarse; contains pebbles of chert, limestone, and granite as much as 1 inch in diameter 3.5 43.5
Cretaceous
Carlile Shale--Fairport Shale member
Limestone, hard, black, and calcareous shale 1.5 45

14-18-9ad--Sample log of drilled test hole in SE NE sec. 9, T. 14 S., R. 18 W., 10 feet north of third telephone pole SE of crossing of power line and telephone line, Ellis County. Surface altitude, 1,979.7 feet; water level, 18.79 feet, October 28, 1949. Thickness,
feet
Depth,
feet
Soil, friable, silty, dark brown 2 2
Neogene--Pleistocene
Terrace deposits
Silt, black, and fine sand 1 3
Clay, compact, stiff, gray; contains some gravel and sand and caliche at 7 to 10.5 feet 7.5 10.5
Clay, friable, gray; contains caliche nodules as much as 1/2 inch in diameter 6.5 17
Clay, silty, gray; contains some caliche 3 20
Gravel and sand, fine to coarse; contains many pebbles of limestone and shale as much as 3/4 inch in diameter 5 25
Cretaceous
Carlile Shale--Fairport Shale member
Shale, hard, calcareous, black 5 30

14-18-9bb1--Sample log of drilled test hole in NW NW sec. 9, T. 14 S., R. 18 W., NE corner of field, Ellis County. Surface altitude, 2,011.5 feet; water level, 46.85 feet, October 27, 1949. Thickness,
feet
Depth,
feet
Soil, friable, dark gray 1.5 1.5
Neogene--Pleistocene
Undifferentiated
Silt, calcareous, tan; contains some sand and gravel 2.5 4
Silt and clay, calcareous, buff; contains some sand and gravel 5 9
Clay, plastic, tough, calcareous, gray to cream color 5 14
Silt, buff, interbedded with sand and gravel 6 20
Sand, very fine, and silt, tan; contains some caliche 6 26
Sand, fine to coarse; contains gravel and clay 11 37
Sand and gravel, fine to coarse; contains caliche, shell fragments, and pebbles of chalk 7 44
Gravel, fine to coarse, and chalk pebbles as much as 3/4 inch in diameter; contains small amount of blue plastic clay and fine sand 6.5 50.5
Cretaceous
Carlile Shale--Fairport Shale member
Shale, hard, calcareous, black 2.5 53

14-18-9bb2--Sample log of drilled observation well in NW NW sec. 9, T. 14 S., R. 18 W., 0.25 mile east and 0.23 mile south of NW corner at east end of terrace in field south of Hays Experimental Station buildings, Ellis County. Surface altitude, 2,017.6 feet; water level, 51.72 feet, October 28, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Undifferentiated
Silt, brown; contains some sand and gravel 4 4
Clay, plastic, gritty, calcareous, buff 8 12
Clay, hard, stiff, buff; contains a few pebbles and caliche fragments 10 22
Silt, compact, buff; contains sand, caliche, and limestone fragments 11 33
Silt, calcareous, buff; contains caliche and sand 6 39
Sand, fine to medium, and clay; contains coarse sand and gravel 8 47
Gravel and sand, coarse to 1/4-inch pebbles; contains many limestone pebbles 11.5 58.5
Cretaceous
Carlile Shale--Fairport Shale member
Shale, hard, calcareous, blue black 6.5 65

14-18-9da--Sample log of drilled test hole in NE SE sec. 9, T. 14 S., R. 18 W., 0.3 mile north of corner and 20 feet west of center of road, Ellis County. Surface altitude, 2,011.6 feet. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Undifferentiated
Silt, friable, slightly sandy, brown 1 1
Silt, compact, sandy, buff 1.5 2.5
Silt, sandy, rusty brown; contains caliche 2.5 5
Silt, compact, sandy, tan 5 10
Silt, medium compact, sandy, buff 4 14
Silt, sandy, buff; contains caliche 9 23
Silt, sandy, buff; contains caliche and some sand 8 31
Silt; contains some caliche and gravel 4 35
Gravel, coarse; contains some sand and some pebbles as much as 1/4 inch in diameter 8 43
Gravel, medium, buff; contains silt layer at 45 to 48 feet 7 50
Gravel, medium to coarse, well sorted, quartz and limestone pebbles 5.5 55.5
Cretaceous
Carlile Shale--Fairport Shale member
Shale, compact, black to blue black 4.5 60

14-18-9dd--Sample log of drilled test hole in SE SE sec. 9, T. 14 S., R. 18 W., 40 feet north and 27 feet west of center of road intersection, Ellis County. Surface altitude, 2,007.4 feet. Thickness,
feet
Depth,
feet
Soil, silty, gray buff; contains few pebbles 2.5 2.5
Neogene--Pleistocene
Undifferentiated
Silt, friable, reddish brown; contains some gravel 5.5 8
Silt, sandy, brown; contains caliche 3.5 11.5
Sand, very fine to fine 5.5 17
Clay, plastic, buff to tan; contains caliche 1 18
Sand, very fine to fine; contains some medium to coarse sand and fine gravel 0.5 18.5
Silt, plastic, buff, reddish; contains some sand and some caliche nodules as much as 1/2 inch in diameter 18.5 37
Silt, plastic, gray to dark brown 3 40
Silt, tough, plastic, tan to buff 12 52
Gravel and sand, fine to coarse; contains pebbles 3/8 inch in diameter 6.5 58.5
Cretaceous
Carlile Shale--Fairport Shale member
Shale, calcareous, hard, black 1.5 60

14-18-16da--Sample log of drilled test hole in NE SE sec. 16, T. 14 S., R. 18 W., 0.1 mile south of half-mile line and 8 feet west of center of road, Ellis County, Surface altitude, 1,993.6 feet; water level, 32.40 feet, October 31, 1949. Thickness,
feet
Depth,
feet
Silt, compact, gray; contains limestone (road fill) 3 3
Neogene--Pleistocene
Undifferentiated
Silt, sandy, rusty brown 4 7
Silt, very sandy, loose; contains fine sand at 9 feet 6 13
Sand and tan silt; contains medium to coarse sand 4 17
Silt, compact, buff 5 22
Silt, sandy, iron stained, buff; contains some gravel 4.5 26.5
Sand, medium to coarse; contains some coarse gravel 6.5 33
Gravel, coarse, quartz and limestone pebbles 7 40
Gravel, medium to coarse, quartz and limestone pebbles; contains some coarse sand 5 45
Gravel, coarse, quartz and limestone pebbles 9.5 54.5
Cretaceous
Carlile Shale--Fairport Shale member
Shale, chalky, black 3.5 58

14-18-21aa--Sample log of drilled test hole in NE NE sec. 21, T. 14 S., R. 18 W., 0.2 mile south of corner and 6 feet west of center of road, Ellis County. Surface altitude, 2,005.5 feet; water level, 22.85 feet, October 31, 1949. Thickness,
feet
Depth,
feet
Silt, gray; contains gravel (road fill) 2.5 2.5
Neogene--Pleistocene
Undifferentiated
Silt, slightly sandy, gray brown 2.5 5
Silt, sandy, rusty brown 3 8
Silt, fairly loose, buff 2 10
Silt, iron stained, slightly sandy, gray buff 4 14
Gravel, coarse 2 16
Clay, sandy, calcareous, gray yellow 5 21
Gravel, coarse, quartzose 1.5 22.5
Cretaceous
Carlile Shale--Fairport Shale member
Shale and clay, calcareous, weathered, gray yellow 7.5 30
Shale, platy, yellow to blue gray; contains selenite crystals 3 33

14-19-31bc--Sample log of drilled test hole in SW NW sec. 31, T. 14 S., R. 19 W., 25 feet north of half-mile line and 8 feet east of center of road, Ellis County. Surface altitude, 2,085.0 feet. Thickness,
feet
Depth,
feet
Silt, friable, sandy, dark brown (road fill) 1.5 1.5
Neogene--Pleistocene
Colluvium
Silt, calcareous, buff 1.5 3
Clay, chalky, calcareous, creamy white; contains caliche and sand grains 3 6
Cretaceous
Carlile Shale--Fairport Shale member
Shale (weathered), calcareous, gray to tan 1 7
Shale, plastic, calcareous, gray to light blue gray 3 10

14-19-31cc--Sample log of drilled observation well in SW SW sec. 31, T. 14 S., R. 19 W., 300 feet north and 20 feet east of center of road intersection, Ellis County. Surface altitude, 2,062.5 feet; water level, 31.79 feet, October 22, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Colluvium
Silt, compact, sandy, dark brown and black 2 2
Clay, compact, gray 2 4
Clay, compact, light gray 3 7
Silt, iron stained, gray brown; contains some gravel 5 12
Loveland Formation
Silt, compact, sandy, rusty brown 13 25
Silt, iron stained at base, sandy, buff 5 30
Crete Formation
Sand, medium to coarse, and fine gravel 6 36
Gravel, coarse, quartzose; contains some coarse sand 1 37
Cretaceous
Carlile Shale--Fairport Shale member
Clay and shale, calcareous, weathered, yellow to light gray 1.5 38.5
Shale, plastic, calcareous, blue gray 1.5 40

14-19-32cb--Sample log of jetted well in NW SW sec. 32, T. 14 S., R. 19 W., Ellis County. Surface altitude, 2,077.4 feet; dry, September 27, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Colluvium
Silt, dark gray 1 1
Silt, clayey, sandy, gray 1 2
Silt, sandy, brown, and fine sand 6 8
Silt, very hard, slightly sandy, tan to brown 6 14
Sand, very coarse, and silt; contains some limestone gravel and white to brown caliche at base 2.7 16.7

14-19-32cc--Sample log of jetted well in SW SW sec. 32, T. 14 S., R. 19 W., Ellis County. Surface altitude, 2,071.0 feet; water level, 16.90 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 1 1
Silt, clayey, plastic, calcareous, tan 4 5
Silt, hard, blocky, calcareous, dark brown 5 10
Silt, sandy, and fine sand, loose, calcareous, brown 10 20
Silt, sandy, clayey, tight, plastic, calcareous, brown 3 23

14-19-35dd--Sample log of drilled test hole in SE SE sec. 35, T. 14 S., R. 19 W., 6 feet south and 4 feet west of inside corner of sidewalk, Ellis County. Surface altitude, 2,108.4 feet. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Nebraskan(?) deposits
Silt, plastic, sandy, brown 4 4
Silt, tan, coarse quartz sand, and gravel cemented by calcium carbonate; contains caliche 3 7
Gravel, coarse to 1-inch pebbles, and fine to coarse sand; contains small amount of intermixed clay 8.5 15.5
Clay, compact, sandy, non calcareous, gray; contains coarse gravel 10.5 26.0
Cretaceous
Carlile Shale--Blue Hill Shale member
Clay, very stiff, and weathered shale, non calcareous, blue gray; contains selenite crystals 4 30

14-20-25cc1--Sample log of jetted well in SW SW sec. 25, T. 14 S., R. 20 W., Ellis County, Surface altitude, 2,076.6 feet; dry, September 27, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, sandy, hard, tan 1 1
Silt; contains medium and fine sand and much limestone gravel 7 8
Gravel, limestone, medium to coarse; contains much light-brown silt 1 9
Silt, sandy, light brown, and medium limestone gravel 3 12
Sand, coarse to very coarse, mixture of igneous and limestone pebbles 2 14

14-20-25cc2--Sample log of jetted well in SW SW sec. 25, T, 14 S., R. 20 W., Ellis County. Surface altitude, 2,067.9 feet; dry, September 26, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, gray 1 1
Silt, slightly sandy, loose, gray to brown 5 6
Sand, medium, and hard brown silt 8 14
Gravel, fine, igneous and limestone pebbles 4 18

14-20-31aa--Sample log of jetted well in NE NE sec. 31, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,083,0 feet; dry, August 9, 1950, Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark gray 2 2
Clay, silty, calcareous, gray 2 4
Silt, clayey, calcareous, dark brown 12 16
Crete Formation
Sand, medium to coarse; contains some fine gravel 12.5 28.5

14-20-31cc--Sample log of jetted well in SW SW sec. 31, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,018.1 feet; water level, 8.20 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, calcareous, dark gray 1 1
Clay, silty, soft, calcareous, light gray 7 8
Sand, medium to coarse; contains some gravel 6 14
Gravel and sand 4 18

14-20-32aa3--Sample log of drilled test hole in NE NE sec. 32, T. 14 S., R. 20 W., 400 feet south and 390 feet west of NE corner along fence line, 90 feet east of corner post, Ellis County. Surface altitude, 2,089.4 feet. Thickness,
feet
Depth,
feet
Silt, sandy, brown (road fill) 2 2
Neogene--Pleistocene
Loveland Formation
Silt, compact, sandy, gray to brown; contains some clay particles 1.5 3.5
Silt, sandy, gray to brown 2 5.5
Silt, sandy, rusty brown; contains some gravel 4.5 10
Silt, clayey, sandy, brown to buff 5 15
Silt, clayey, sandy, brown 3 18
Crete Formation
Gravel (limestone and quartz pebbles), fine to coarse; contains clayey sandy silt 7 25
Gravel, fine to coarse, quartz and feldspar pebbles; contains silty clay 1 foot thick at 26 to 27 feet and some 1/4-inch limestone pebbles and shell fragments 5 30
Gravel and sand, fine to medium 3 33
Gravel, fine to coarse, and gray clay 5 38
Gravel, coarse, predominantly limestone pebbles; contains some quartz and feldspar pebbles and some clay 6 44
Cretaceous
Carlile Shale--Blue Hill Shale member
Shale, non calcareous, blue gray to black; contains fragments of limestone and satin spar 4 48

14-20-32ad--Sample log of jetted well in SE NE sec. 32, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,079.2 feet; dry, August 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark gray 1 1
Silt, blocky, clayey, calcareous, dark brown 10.5 11.5
Crete Formation
Sand, medium to coarse; contains some limestone pebbles and some clay 11.5 23

14-20-32bb--Sample log of jetted well in NW NW sec. 32, T, 14 S., R. 20 W., Ellis County. Surface altitude, 2,089.7 feet; dry, August 19, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark gray 1 1
Clay. silty, calcareous, dark brown 1 2
Silt, clayey, calcareous, brown 3.5 5.5
Sand, very fine, silty 2.5 8
Silt, sandy, calcareous, dark gray 5 13
Crete Formation
Gravel, medium; contains limestone fragments 4 17
Gravel, fine; contains limestone fragments and fine sand 3 20

14-20-32dd1--Sample log of jetted observation well in SE SE sec. 32, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,056.4 feet; water level, 22.30 feet, September 15, 1950, Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, sandy, calcareous, dark gray 1 1
Clay, sandy, calcareous, dark gray 4 5
Crete Formation
Sand, coarse 1 6
Sand, fine 2 8
Sand, very coarse; contains some gravel 7 15
Sand and gravel 10 25

14-20-34bb--Sample log of jetted well in NW NW sec. 34, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,089.9 feet; water level, 15.66 feet, September 27, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Colluvium
Silt, gray 0.5 0.5
Silt, clayey, calcareous, tan 1.5 2
Silt, loose, calcareous, brown 4 6
Silt, loose, sandy, tan 6 12
Sand, fine to very fine, silty, well sorted 5 17
Caliche, hard, white .1 17.1
Sand, fine, very silty, tan 5.4 22.5

14-20-34bc--Sample log of jetted well in SW NW sec. 34, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,079.7 feet; water level, 13.94 feet, September 27, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, gray 0.5 0.5
Silt, loose, calcareous, brown 2.5 3
Silt, powdery, calcareous, tan 2 5
Silt, loose, clayey, noncalcareous, brown 7 12
Silt, clayey, calcareous, light brown 4 16
Silt, sandy, calcareous, dark brown; contains medium sand 5 21
Crete Formation
Sand, fine to medium, silty, contains grains of igneous rock 6 27

14-20-35bb--Sample log of jetted well in NW NW sec. 35, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,084.1 feet; dry, September 22, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Colluvium
Soil, silty, gray 1 1
Silt, very hard, tight, slightly sandy, gray 1 2
Silt, clayey, slightly sandy, tan 1 3
Clay, non calcareous, white to gray 1 4
Sand, coarse, containing grains of igneous rock, and calcareous light-brown clay 2.5 6.5
Silt, clayey, noncalcareous, rust color 1 7.5
Cretaceous
Carlile Shale--Blue Hill Shale member
Shale, clayey, noncalcareous, olive green   7.5

14-20-35bc--Sample log of jetted well in SW NW sec. 35, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,071.9 feet; water level, 9.05 feet, September 27, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, dark gray 1 1
Silt, compact, clayey, gray 1 2
Silt, powdery, calcareous, tan 12 14
Silt, clayey; contains caliche nodule 1.5 15.5
Sand, medium, very silty 1.5 17
Crete (?) Formation
Gravel, fine, silty, pebbles of limestone and igneous rock 1.8 18.8

14-20-35cc--Sample log of jetted well in SW SW sec. 35, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,054.0 feet; water level, 11.39 feet, September 22, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 1 1
Silt, very compact, very calcareous, tan 2 3
Silt, clayey, loose, gray 1 4
Silt, blocky, clayey in zones, brown; contains some sand 14 18
Crete Formation
Sand, coarse, well sorted; contains some fine gravel 7.4 25.4

14-20-36dd--Sample log of jetted well in SE SE sec. 36, T. 14 S., R. 20 W., Ellis County. Surface altitude, 2,072.9 feet; water level, 16.26 feet, September 16, 1950, Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, dark brown 2 2
Silt, blocky, sandy, gray 6 8
Silt, clayey, slightly sandy, hard, light tan 7 15
Silt, clayey, soft, light tan 2 17
Silt, hard, tan; contains some clay 7.5 24.5
Cretaceous
Carlile Shale--Blue Hill Shale member
Shale, clayey, noncalcareous, gray green   24.5

14-21-25cc--Sample log of jetted well in SW SW sec. 25, T. 14 S., R. 21 W., Trego County, Surface altitude, 2,073.4 feet; water level, 12.90 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, clayey to sandy, calcareous, dark brown 6 6
Crete Formation
Sand, medium 5 11
Sand and gravel 5 16

14-21-25dd--Sample log of jetted well in SE SE sec. 25, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,106.2 feet; water level, 12.20 feet, September 15, 1950, Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, tan 1 1
Silt, calcareous, dark gray 8 9
Silt, clayey, blocky, calcareous, dark brown 18 27

14-21-26da--Sample log of jetted well in NE SE sec, 26, T. 14 S., R, 21 W., Trego County, Surface altitude, 2,100.6 feet; dry, September 7, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 2 2
Silt, loose, dark gray 3 5
Silt, hard, blocky, dark brown 2 7
Silt, loose, clayey and sandy, tan 12 19

14-21-27ad--Sample log of drilled test hole in SE NE sec, 27, T. 14 S., R. 21 W., 0.48 mile south of corner and eight feet west of center of road, Trego County. Surface altitude, 2,108.4 feet; water level, 76.70 feet, October 19, 1949. Thickness,
feet
Depth,
feet
Silt, black, dark brown (road fill) 2 2
Neogene--Pleistocene
Loveland Formation
Silt, brown, and angular limestone gravel 2 4
Silt, plastic, tan to brown 6 10
Silt, sandy, rusty brown 3 13
Silt, plastic, buff 8 21
Gravel (limestone pebbles), and brown silt 4 25
Silt, plastic, clayey, gray 3 28
Crete Formation
Gravel, medium to fine; contains some coarse arkosic sand 7 35
Gravel, medium to coarse 2 37
Gravel, medium to coarse, arkosic 2 39
Sappa Formation
Silt, calcareous, gray white 6 45
Silt, calcareous, gray white to buff 5 50
Silt, calcareous, gray white to cream color 5 55
Silt, calcareous, white 8 63
Grand Island Formation
Gravel (limestone pebbles); contains some gray silt 4 67
Clay, gray, and silt; contains limestone gravel 3 70
Gravel, fine to medium, pebbles of limestone and quartz 4 74
Gravel, medium to coarse, pebbles of limestone and quartz, and gray silt 4 78
Gravel, fine to coarse, pebbles of limestone and quartz 6 84
Gravel, coarse, pebbles of limestone and quartz 5 89
Gravel, medium to fine, pebbles of igneous rock 2 91
Gravel, coarse to fine, pebbles of igneous rock and limestone 2 93
Cretaceous
Carlile Shale
Shale, pliable, plastic, calcareous, blue 2 95

14-21-27dd--Sample log of jetted well in SE SE sec, 27, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,099.5 feet; water level, 27,30 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, light gray 3 3
Clay, calcareous, light tan; contains coarse sand 14 17
Crete Formation
Sand, coarse to very coarse, poorly sorted; contains some gravel 13 30

14-21-28cb--Sample log of jetted well in NW SW sec. 28, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,11B.4 feet; dry, August 3, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, light gray 1 1
Clay, sandy, calcareous, brown 8 9
Crete(?) Formation
Sand, poorly sorted; contains limestone pebbles 13 22
No sample 5.1 27.1

14-21-2Bcc--Sample log of jetted well in SW SW sec. 2B, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,096.7 feet; water level, 12.50 feet, August 3, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, tan 1 1
Clay, calcareous, tan to gray; contains some sand 6 7
Crete Formation
Sand, very coarse; contains gravel 12 19
Driven from 19 to 25 feet 6 25

14-21-30cd--Sample log of jetted well in SE SW sec, 30, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,065,4 feet; water level, 13.08 feet, July 14, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, dark brown 1 1
Sand, silty, tan 15 16
Cretaceous
Carlile Shale
Shale, blue .8 16.8

14-21-30da--Sample log of jetted well in NE SE sec. 30, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,122.7 feet; dry, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, black 3 3
Silt, sandy, tan 5 8
Crete Formation
Sand, coarse to very coarse; contains a few pebbles 13 21

14-21-30dd--Sample log of jetted well in SE SE sec. 30, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,112.9 feet; dry, July 19, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Crete Formation
Silt, black; contains some very coarse sand 3 3
Sand, very coarse; contains some gravel 7 10
Gravel 0.5 10.5
Sand, medium 1.5 12
Sand, very coarse; contains some gravel 2 14

14-21-32ad--Sample log of jetted well in SE NE sec. 32, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,049.1 feet; water level, 6.50 feet, August 3, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, calcareous, light tan 2 2
Sand, very coarse, clayey 0.5 2.5
Clay, calcareous, dark gray; contains some sand 4.5 7
Sand, very coarse; contains some fine gravel 9 16
Clay, sandy, soft, calcareous, blue gray 5 21
Cretaceous
Carlile Shale
Shale, weathered, calcareous, black to dark gray   21

14-21-33bb--Sample log of jetted observation well in NW NW sec. 33, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,057.7 feet; water level, 7.90 feet, August 3, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, calcareous, tan 1 1
Clay, calcareous, dark gray; contains some sand 4 5
Clay, sandy, calcareous, tan 18 23
Sand, very coarse 5 28
Cretaceous
Carlile Shale
Shale, weathered, clayey, calcareous, dark gray to black   28

14-21-34aa--Sample log of drilled well in NE NE sec. 34, T. 14 S., R. 21 W., 25 feet south and 35 feet west of center of crossroads, Trego County. Surface altitude, 2,095.4 feet; dry, October 22, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, friable, slightly sandy, brown 1 1
Silt, clayey, slightly sandy, brown to gray buff 1.5 2.5
Silt, clayey, sandy, buff 2.5 5
Silt, sandy, rusty brown; contains buff silt 2 7
Crete Formation
Sand, coarse, and fine quartz and feldspar gravel; contains some clay 3 10
Sand, fine to coarse; contains some fine gravel 5 15
Sand, medium to coarse; contains some fine to medium gravel 2 17
Gravel, fine to coarse, quartz and feldspar pebbles 8 25
Gravel, medium to coarse, limestone pebbles 7 32
Cretaceous
Carlile Shale
Shale, plastic, weathered, yellow to gray 2 34
Shale, noncalcareous, blue black 3 37

14-21-34ad--Sample log of drilled test hole in SE NE sec. 34, T. 14 S., R. 21 W., 0.35 mile south of corner and 6 feet west of center of road, Trego County, Surface altitude, 2,087.3 feet. Thickness,
feet
Depth,
feet
Silt, gray to brown (road fill) 1 1
Neogene--Pleistocene
Loveland Formation
Silt, plastic, clayey, calcareous, buff 1 2
Silt, sandy, calcareous, tan 3 5
Crete Formation
Gravel, fine to coarse, pebbles of igneous rock and limestone; contains silt 4 9
Gravel, fine to medium, quartzose, and coarse sand 5 14
Gravel, coarse to fine, pebbles of quartz, claystone, and ironstone 2 16
Sand, coarse to medium, quartz and feldspar grains 2 18
Sand, coarse, and fine to medium quartz gravel 3 21
Gravel, fine to medium 2 23
Cretaceous
Carlile Shale
Shale, pliable, plastic, noncalcareous, blue gray to black 3 26

14-21-34da--Sample log of drilled test hole in NE SE sec, 34, T. 14 S., R. 21 W., 0.3 mile north of corner and 12 feet west of center of road, Trego County, Surface altitude, 2,041.4 feet; water level, 16.90 feet, October 13, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Sand, fine to coarse; contains silt 3 3
Silt, fine, sandy, buff 6 9
Silt, buff to gray buff; contains fine to coarse gravel 6 15
Silt, buff to brown; contains medium to coarse sand 3 18
Clay, plastic, gray; contains fine to coarse sand and gravel 7 25
Clay, plastic, gray; contains some gravel and sand 5 30
Clay, plastic, gray; contains fine and coarse sand 5 35
Clay, gray; contains fine to coarse gravel 5 40
Clay, sandy, gray; contains some coarse sand 4 44
Clay, pliable, plastic, slightly sandy, gray 6 50
Gravel, fine to medium, and coarse sand 6 56
Gravel, fine to coarse, pebbles of igneous rock, limestone, and shale 7 63
Cretaceous
Carlile Shale--Fairport Shale member
Shale, calcareous, gray black 5 68

14-21-34dd--Sample log of drilled test hole in SE SE sec. 34, T. 14 S., R. 21 W., 300 feet north of corner and 20 feet west of center of road, Trego County, Surface altitude, 2,028.4 feet. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Sand, fine to coarse quartz and feldspar grains; contains some silt 3 3
Sand, fine to coarse; contains some silt 2 5
Sand, medium to coarse, and fine gravel 5 10
Gravel, medium to coarse 2 12
Gravel, medium to coarse; contains some shale fragments 1 13
Cretaceous
Carlile Shale--Fairport Shale member
Shale, fissile, calcareous, black 5 18

14-21-35cb--Sample log of jetted well in NW SW sec. 35, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,047.4 feet; dry, August 4, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt; contains very coarse sand 1 1
Sand, very coarse, poorly sorted 5 6
Cretaceous
Carlile Shale
Shale, clayey, calcareous, dark gray; weathers tan 5 11

14-21-35cc--Sample log of jetted well in SW SW sec, 35, T. 14 S., R. 21 W., Trego County. Surface altitude, 2,033.7 feet; water level, 12.20 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, very sandy, calcareous 3 3
Clay, very sandy, calcareous, tan 7 10
Sand, medium to coarse, well sorted 2 12
Sand, very coarse; contains limestone pebbles 8 20

14-21-36bc--Sample log of jetted well in SW NW sec, 36, T. 14 S., R. 21 W., Trego County, Surface altitude, 2,073.8 feet; dry, September 7, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 1 1
Silt, clayey, calcareous, gray 2 3
Silt, very sandy, gray 2 5
Crete Formation
Sand, coarse to very coarse, poorly sorted; contains much gravel 5 10
Sand and gravel 10 20

14-22-25da1--Sample log of jetted well in NE SE sec. 25, T. 14 S., R. 22 W., Trego County. Surface altitude, 2,103.3 feet; water level, 6.90 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, dark brown; contains coarse sand 0.5 0.5
Sand, very coarse; contains some gravel 7.6 8.1

14-22-25da2--Sample log of jetted well in NE SE sec. 25, T. 14 S., R. 22 W., Trego County. Surface altitude, 2,098.9 feet; water level, 5.25 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt; contains some very coarse sand 1 1
Sand, very coarse; contains some gravel 6.1 7.1

14-22-36aa--Sample log of drilled observation well in NE NE sec. 36, T. 14 S., R. 22 W., 0.2 mile west of corner and 20 feet south of center of road, Trego County. Surface altitude, 2,114.7 feet; water level, 42.65 feet, October 19, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Crete Formation
Silt, dark brown; contains fine to coarse gravel and some coarse sand 1 1
Gravel, fine to coarse, quartzose, rusty brown 1 2
Gravel, fine quartz and feldspar pebbles 3 5
Gravel, fine to coarse, pebbles of quartz, feldspar, and limestone 2 7
Gravel, fine to medium, quartzose; contains some coarse sand 3 10
Gravel, fine to coarse, quartzose 4.5 14.5
Sappa Formation
Silt, soft, plastic, gray white 5.5 20
Silt, clayey, calcareous, gray white 6 26
Silt, sandy, tan to cream color 6 32
Gravel, fine to medium, and medium to coarse sand; contains some limestone fragments 6 38
Silt, clayey, calcareous, gray white 7 45
Silt, calcareous, gray to gray white 5 50
Silt, gray to gray white 8 58
Grand Island Formation
Gravel, fine to medium, pebbles of igneous rock 7 65
Gravel, fine, and coarse quartz sand 3 68
Cretaceous
Carlile Shale--Fairport Shale member
Shale, calcareous, blue black; contains limy material at 68 feet 6.5 74.5

14-22-36ad--Sample log of jetted well in SE NE sec. 36, T. 14 S., R. 22 W., Trego County. Surface altitude, 2,069.2 feet; water level, 6.95 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, dark brown 1 1
Silt, very sandy; contains some gravel 4 5
Clay, calcareous, light brown; contains some very coarse sand 7 12
Sand, coarse; contains some pebbles of quartz and limestone 4 16
Sand, very coarse; contains some fine gravel 8.4 24.4

14-22-36da--Sample log of jetted well in NE SE sec. 36, T. 14 S., R. 22 W., Trego County. Surface altitude, 2,068.3 feet; water level, 6.50 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Sand, fine; contains some silt 3 3
Sand, very coarse 9 12
Gravel; contains some sand and limestone pebbles 2 14
Sand, very coarse; contains some gravel 3.4 17.4

14-22-36dd--Sample log of jetted well in SE SE sec. 36, T. 14 S., R. 22 W., Trego County. Surface altitude, 2,063.4 feet; water level, 3.85 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, sandy, brown 0.5 0.5
Sand, very coarse 4.5 5
Gravel, very coarse; contains pebbles of quartz and limestone 5 10
Sand and gravel 1.6 11.6

15-16-30cc--Sample log of drilled test hole in SW SW sec. 30, T. 15 S., R. 16 W., Ellis County. Surface altitude, 1,843.2 feet. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, gray buff; contains medium to fine gravel and sand 7 7
Gravel, coarse to fine, and sand; contains gray silt 13 20
Gravel, very coarse to fine; contains sand 12 32
Cretaceous
Graneros Shale
Shale, dark gray 8 40
Shale, dark greenish gray; contains fine greenish-gray sandstone 10 50

15-16-31bb--Sample log of drilled test hole in NW NW sec. 31, T. 15 S., R. 16 W., Ellis County. Surface altitude, 1,860.6 feet; water level, 22.30 feet, January 14, 1944. Thickness,
feet
Depth,
feet
Road fill 3 3
Neogene--Pleistocene
Terrace deposits
Sand, coarse to fine, and silt, buff; contains coarse to fine gravel 7 10
Silt, slightly clayey, yellow gray; contains medium to fine gravel and sand 15 25
Sand, coarse to fine, and medium to fine gravel; contains buff and green silt 5 30
Sand, coarse to fine; contains medium to fine gravel 0 40
Gravel, very coarse to fine, and sand 10 50
Gravel, medium to fine; contains sand 4 54
Cretaceous
Graneros Shale
Shale, greenish gray; contains very fine silty gray-green sandstone 6 60

15-17-1dd--Sample log of drilled test hole in SE SE sec, 1, T, 15 S., R. 17 W, 0.2 mile north of corner and 10 feet west of center of road, Ellis County. Surface altitude, 1,881.1 feet. Thickness,
feet
Depth,
feet
Silt, dark brown; contains sand and gravel (road fill) 3 3
Neogene--Pleistocene
Terrace deposits
Silt, compact, sandy, brown to tan 3 6
Silt, compact, sandy, brown 2 8
Silt, medium compact, gray brown 2 10
Silt, compact, dark brown 5 15
Silt, compact, calcareous, sandy, gray 2 17
Silt, very sandy, gray 1 18
Gravel, medium to coarse; contains some sand 5 23
Gravel, coarse to medium 4 27
Cretaceous
Greenhorn Limestone
Shale and limestone, interbedded, gray 2 29

15-17-12aa--Sample log of drilled test hole in NE NE sec. 12, T, 15 S., R. 17 W., 0.2 mile south of corner and 10 feet west of center of road, Ellis County. Surface altitude, 1,884.6 feet; water level, 22.67 feet, November 4, 1949. Thickness,
feet
Depth,
feet
Silt, friable, sandy, brown (road fill) 3 3
Neogene--Pleistocene
Terrace deposits
Silt, sandy, calcareous, tan 3 6
Silt, clayey, slightly calcareous, tan 4 10
Silt, sandy, brown; contains gravel 7 17
Clay, sandy, gray 3 20
Gravel, fine to coarse, pebbles of quartz, feldspar, and limestone 5 25
Cretaceous
Greenhorn Limestone
Shale, brittle, calcareous, blue gray 2 27

15-18-7bb--Sample log of jetted well in NW NW sec. 7, T. 15 S., R. 18 W., Ellis County. Surface altitude, 2,065.7 feet; water level, 6.80 feet, July 14, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Nebraskan(?) deposits
Silt, dark brown 1 1
Clay, sandy, gray 4 5
Clay, very sandy, coarse to medium, tan 5 10
Cretaceous
Carlile Shale
Shale, buff and blue, weathered 2 12

15-18-7cc--Sample log of jetted well in SW SW sec. 7, T. 15 S., R. 18 W., Ellis County. Surface altitude, 2,069.9 feet; water level, 7.55 feet, July 14, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Nebraskan(?) deposits
Silt, brown 1 1
Silt, sandy, tan; contains some quartz gravel 5 6
Gravel; contains some quartz and black chert fragments 0.5 6.5
Clay, sandy, buff 2 8.5
Cretaceous
Carlile Shale
Shale, clayey, light gray and tan 0.5 9

15-18-17ba--Drillers log of upper part of Palmer Oil Corporation No. 1 Carl Ruder well in NE NW sec. 17, T. 15 S., R. 18 W., Ellis County. Drilled August and September 1935. Surface altitude, 1,982.0 feet. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt and sand 10 10
Cretaceous
Carlile Shale and Greenhorn Limestone
Shale, gray, calcareous 41 51
Limestone, chalky, and calcareous shale 17 68
Shale, gray, calcareous 27 95
Limestone, white, chalky, and calcareous shale 10 105
Shale, gray, calcareous; contains thin crystalline limestone layers 35 140
Graneros Shale
Shale, dark gray, noncalcareous 22 162
Shale, brown, contains yellow ochre 13 175
Dakota Formation and Kiowa Shale
Clay, white and light gray; contains quartz grains 35 210
Clay, gray; contains pyrite, iron pellets, and lignite fragments 25 235
Sand, fine and medium, small amount of coarse to very coarse brown iron-stained sand 10 245
Clay, buff, sandy; contains iron pellets 30 275
Clay, light gray and maroon; contains iron throughout 40 315
Clay, white, and sandy limonite 15 330
Clay and shale, gray; contains limonite, sandy at base 35 365
Sand, fine to medium, gray, glauconitic, subangular 5 370
Shale, gray and maroon, silty, limonitic; contains glauconitic sand at base 48 418
Shale, gray, silty and limonitic 7 425
Shale, medium gray, buff, and maroon, silty at 475 to 480 feet 55 480
Sand, gray, very fine to medium, round to subround; contains pyrite, chalcopyrite, and glauconite 20 500
Shale, gray and reddish brown, silty, limonitic 15 515
Sand, silty, very fine to fine, some medium, reddish brown; contains white sand, pyrite, and glauconite 35 550
Sand, red, silty, glauconitic 15 565
Silt, red, sandy, and gray shale; contains pyrite 10 575
Cheyenne Sandstone
Sand, fine, whitish buff; contains some medium sand 10 585
Sand, rounded, well sorted, fine to medium, buff; contains small amount of pyrite and glauconite 135 720
Sand, rounded, well sorted, fine, stained reddish buff; contains redbed fragments at 760 to 765 feet 85 805
Permian System
Nippewalla Group
Siltstone and shale, red, sandy    

15-18-18cc--Sample log of jetted well in SW SW sec. 18, T. 15 S., R. 18 W., Ellis County. Surface altitude, 2,014.8 feet; water level, 11.50 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Colluvium
Silt, dark brown, calcareous 2 2
Sand and gravel, clayey 2.5 4.5
Clay and coarse sand, calcareous, light tan 4.5 9
Sand, very coarse; contains some gravel 1 10
Sand, very coarse, clayey; contains some weathered limestone fragments 2.6 12.6

15-18-21aa--Sample log of drilled test hole in NE NE sec. 21, T. 15 S., R. 18 W., 45 feet west and 30 feet south of center of crossroads and 4 feet east of stone corner post, Ellis County. Surface altitude, 2,036.5 feet; water level, 10.50 feet, November 2, 1949. Thickness,
feet
Depth,
feet
Soil, medium compact, sandy, brown 1 1
Neogene--Pleistocene
Nebraskan(?) deposits
Silt, medium compact, sandy, rusty brown 0.5 1.5
Silt, calcium carbonate cemented, compact, sandy, buff; contains sand and gravel 2 3.5
Gravel, fine to medium; contains caliche and silt 2.5 6
Clay, calcareous, gray to yellow; contains gravel and satin spar 4 10
Cretaceous
Carlile Shale--Fairport Shale member
Clay and shale, gray and yellow; contains weathered bentonite 2 12
Shale and clay, compact, calcareous, gray and yellow 8 20
Shale and clay, gray, yellow; contains chalky limestone 3 23
Shale, gray yellow; contains streaks of bentonite 3 26

15-18-27cb3--Sample log of drilled observation well in NW SW sec. 27, T. 15 S., R. 18 W., 0.3 mile north of corner, 150 feet north of north end of bridge, and 35 feet east of center of road, Ellis County. Surface altitude, 1,907.9 feet; water level, 9.32 feet, November 2, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, sandy, tan; contains medium sand 3 3
Sand, medium to coarse; contains coarse gravel 7 10
Sand, coarse, quartzose, and medium to coarse gravel 5 15
Gravel, fine to coarse, quartzose; contains blue-gray silt at 18 feet and a few limestone pebbles 5 20
Sand, coarse, quartzose, and fine gravel 5 25
Gravel, medium to fine, quartzose, and coarse sand; contains limestone pebbles 5 30
Sand, medium to coarse, quartzose; contains blue-gray clay 5 35
Sand, coarse, and fine to medium quartz and limestone gravel 5 40
Sand, medium to coarse, quartzose 9 49
Cretaceous
Graneros Shale
Shale, calcareous, blue gray to black 1 50

15-18-27cb4--Sample log of drilled test hole in NW SW sec. 27, T. 15 S., R. 18 W., 0.4 mile north of corner and 35 feet east of center of road, Ellis County. Surface altitude, 1,919.4 feet; water level, 22.40 feet, November 5, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, tan, and fine to medium sand 2 2
Silt, medium compact, sandy, buff 8 10
Silt, calcareous, gray buff 7 17
Silt, plastic, calcareous, gray buff; contains some gravel at 17 feet 5 22
Silt, sandy, gray, and coarse limestone and quartz gravel 8 30
Gravel, coarse, quartzose, and gray compact silt 10 40
Gravel, coarse; contains blue-gray silt to 44 feet 10 50
Gravel, coarse; contains some layers of gray silt 9 59
Cretaceous
Graneros Shale
Shale, blue to blue gray, and limestone 4 63

15-18-27cc--Sample log of drilled test hole in SW SW sec. 27, T. 15 S., R. 18 W., 45 feet north and 30 feet east of center of crossroads, Ellis County. Surface altitude, 1,911.3 feet; water level, 15.00 feet, November 2, 1949. Thickness,
feet
Depth,
feet
Silt, sandy, brown (road fill) 3 3
Neogene--Pleistocene
Terrace deposits
Silt, compact, sandy, tan 4 7
Sand, medium to coarse, quartzose 3 10
Sand, medium to coarse, quartzose, and medium to coarse gravel 5 15
Sand, coarse, grains of quartz, limestone, and shale, and medium to coarse gravel 5 20
Gravel, fine to coarse, pebbles of quartz, feldspar, and limestone; contains shell fragments 6.5 26.5
Cretaceous
Graneros Shale
Shale, very solid, calcareous, gray; contains much lag 3.5 30

15-18-33ad--Sample log of drilled test hole in SE NE sec. 33, T. 15 S., R. 18 W., 0.3 mile south of corner and 30 feet west of center of road, Ellis County. Surface altitude, 1,954.4 feet; water level, 32.40 feet, November 2, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, friable, brown 4 4
Silt, slightly sandy, buff 4 8
Silt, rusty brown; contains coarse sand in upper part 2 10
Crete Formation
Gravel, fine to medium; contains coarse sand 5 15
Gravel, fine to medium, and coarse sand; contains very little silt 5 20
Sand, coarse, quartzose, and fine gravel 6 26
Gravel, fine to medium; contains very little yellow silt 4 30
Gravel, fine to medium, quartzose 6 36
Cretaceous
Greenhorn Limestone
Shale, calcareous, gray to gray black 3 39

15-18-34cb--Sample log of drilled test hole in NW SW sec. 34, T. 15 S., R. 18 W., 0.3 mile north of corner and 35 feet east of center of road, Ellis County. Surface altitude, 1,955.5 feet. Thickness,
feet
Depth,
feet
Silt, brown 3 3
Neogene--Pleistocene
Loveland Formation
Silt, medium compact, tan 4 7
Silt, brown; contains fine to medium sand and medium gravel 5 12
Crete Formation
Sand, medium to coarse; contains silt and medium to coarse gravel 8 20
Gravel, medium to coarse, quartzose 5 25
Gravel, coarse, quartzose; contains shale and limestone fragments 4 29
Gravel, coarse; contains some yellow clay 5 34
Cretaceous
Greenhorn Limestone
Shale, calcareous, gray to black 3 37

15-19-2cc--Sample log of jetted well in SW SW sec. 2, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,041.2 feet; dry, August 1, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, calcareous, dark gray 1.5 1.5
Clay, calcareous, tan; contains some sand 7.5 9
Clay, calcareous; contains some very coarse sand 3 12
Sand, very coarse; contains some fine gravel 2 14
Clay, sandy to very sandy in zones, calcareous, yellow tan 7 21

15-19-4cb--Sample log of jetted well in NW SW sec. 4, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,054.3 feet; water level, 6.90 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, dark gray 1 1
Silt, soft, tan; contains some clay 5 6
Silt, blocky, dark brown; contains much coarse sand 5 11
Silt, clayey, sandy, soft, tan 1 12
Silt, very sandy, hard, blocky, brown 4 16
Crete Formation
Sand, very coarse, well sorted; contains yellow opal-cemented layer at base 5 21

15-19-4da--Sample log of jetted well in NE SE sec. 4, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,064.1 feet; water level, 7.94 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Soil, silty, dark brown 2 2
Clay, silty, calcareous, tan; contains fine sand 7 9
Silt, hard, blocky, sandy, brown 1 10
Silt, clayey, hard, calcareous, buff 2 12
Cretaceous
Carlile Shale
Shale, plastic, noncalcareous, blue green 1 13

15-19-5cb--Sample log of jetted well in NW SW sec. 5, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,041.5 feet; water level, 31.10 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, dark gray 1 1
Silt, loose, clayey, dark gray 2 3
Silt, very clayey, sandy, soft, plastic, tan 3 6
Clay, silty, tan; contains some coarse sand and limestone pebbles 1 7
Crete Formation
Silt, blocky, sandy, extremely clayey, dark brown to tan; contains limestone fragments 26 33
Sand, fine to medium, very silty 1.8 34.8

15-19-7ad--Sample log of jetted well in SE NE sec. 7, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,003.8 feet; water level, 10.80 feet, September 27, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, sandy 1 1
Sand, medium to fine, arkosic 2 3
Sand, very coarse, and fine gravel 14.5 17.5

15-19-7bc1--Sample log of drilled test hole in SW NW sec. 7, T. 15 S., R. 19 W., 0.45 mile south of corner and 7 feet east of center of road, Ellis County. Surface altitude, 2,030.1 feet. Thickness,
feet
Depth,
feet
Silt, sandy, dark brown (road fill) 1 1
Neogene--Pleistocene
Loveland Formation
Silt, loose, sandy, buff 2 3
Sand, coarse, quartzose, and brown silt 4 7
Crete Formation
Sand, coarse; contains fine quartz gravel and shell fragments 8 15
Sand, medium to coarse, quartzose; contains some fine gravel 5 20
Sand, coarse, grains of limestone and granite 5 25
Gravel, fine to coarse, pebbles of granite and limestone; contains clay at 28.5 feet 4 29
Gravel, fine to coarse, pebbles of granite and limestone 3 32
Cretaceous
Carlile Shale
Shale, calcareous, sandy, dark gray 4 36

15-19-7bc2--Sample log of jetted well in SW NW sec. 7, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,029.1 feet; water level, 9.65 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, hard, sandy, tan 1 1
Silt, loose, sandy, buff 2 3
Silt, sandy, dark brown 4 7
Crete Formation
Sand, poorly sorted, fine to very coarse; contains some gravel 15.2 22.2

15-19-7dd--Sample log of jetted well in SE SE sec. 7, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,018.8 feet; dry, September 27, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, sandy 1 1
Sand, medium to fine, silty, grains of igneous rock 3 4
Crete Formation
Sand, medium to very coarse, grains of igneous rock; contains fine gravel 18.9 22.9

15-19-8bb--Sample log of jetted well in NW NW sec. B, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,020.7 feet; water level, 21.80 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 1 1
Silt, very clayey, calcareous, tan 4 5
Silt, clayey, sandy, tan 1 6
Crete Formation
Sand, medium to very coarse, poorly sorted; contains some fine gravel 9 15
Sand 7 22

15-19-9bb--Sample log of jetted well in NW NW sec. 9, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,045.1 feet; water level, 26.30 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, dark gray 1 1
Silt, soft, clayey, calcareous, light tan 5 6
Silt, hard, sandy, dark brown 3 9
Sand, fine to very fine, very silty 9 18
Crete Formation
Silt, very sandy, loose, calcareous, tan 16.8 34.8

15-19-9cb--Sample log of jetted well in NW SW sec. 9, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,027.2 feet; dry, September 6, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 2 2
Silt, soft, clayey, light tan 2 4
Silt, hard, very calcareous, brown 5 9
Silt, very sandy, loose, ta 9 18
Sand, fine, silty 2 20
Crete Formation
Sand 12 32

15-19-9cc--Sample log of drilled observation well in SW SW sec. 9, T. 15 S., R. 19 W., 30 feet east and 25 feet north of center of crossroads, Ellis County. Surface altitude, 2,017.5 feet; water level, 33.01 feet, October 24, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, medium compact, dark brown 2.5 2.5
Silt, fairly compact, sandy, calcareous, buff 2.5 5
Silt, medium compact, sandy, buff 2 7
Silt, calcareous, rusty brown to brown 4 11
Silt, buff, and medium to coarse sand 5 16
Crete, Sappa (?), and Grand Island (?) Formations
Sand, medium to coarse, arkosic 4 21
Sand, coarse, arkosic 5 25
Gravel, medium coarse, arkosic, and coarse sand 5 30
Gravel, fine, arkosic, and coarse sand 5 35
Gravel, medium to coarse, arkosic 2 37
Clay, gray tan to buff, and coarse quartz gravel 6 43
Gravel, coarse to medium, interbedded with gray, buff, and white clay 7 50
Gravel, fine to medium, arkosic 4 54
Clay and limestone, weathered, white and gray; contains medium to fine gravel 3.5 57.5
Cretaceous
Carlile Shale
Shale, sandy, calcareous, dark gray to gray 2.5 60

15-19-10ab--Sample log of jetted well in NW NE sec. 10, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,044.3 feet; water level, 7.40 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Colluvium
Silt, calcareous, dark gray 1 1
Clay, sandy, slightly calcareous, dark gray 3 4
Clay, calcareous, tan 8 12
Clay, very hard, sandy, calcareous, tan; contains limestone fragments 3 15

15-19-10ad2--Sample log of jetted well in SE NE sec. 10, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,021.1 feet; water level, 13.85 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, calcareous 2 2
Clay, calcareous, dark gray 2 4
Silt, sandy, noncalcareous, black 4 8
Clay, calcareous, brown; contains small limestone fragments 6 14
Sand, fine to medium, clayey 2 16

15-19-10bb--Sample log of jetted well in NW NW sec. 10, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,043.1 feet; water level, 5.80 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Soil, silty, dark gray 1 1
Silt, slightly sandy, hard, calcareous, brown 10 11
Sand, very coarse, very silty 6 17
Silt, clayey, very sandy, brown 3 20
Sand, medium to coarse; contains fine gravel 3 23

15-19-10cb--Sample log of jetted well in NW SW sec. 10, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,032.4 feet; water level, 21.95 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 3 3
Silt, blocky, gray, black stains on joints; contains some sand 3 6
Silt, sandy, gray 21 27
Crete Formation
Sand, fine to medium, well sorted, yellow 6 33

15-19-13cb--Sample log of jetted well in NW SW sec. 13, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,004.0 feet; dry, July 25, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark gray 4 4
Clay, light tan; contains some coarse sand 10 14
Crete Formation
Sand, medium to coarse, well sorted 16.5 30.5

15-19-14aa--Sample log of jetted well in NE NE sec. 14, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,017.8 feet; water level, 4.35 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, calcareous, gray to black 1 1
Clay, calcareous, light gray 6 7
Sand, fine, clayey 1 8
Clay, calcareous, yellow 1 9
Cretaceous
Carlile Shale
Shale, weathered, clayey   9

15-19-15aa--Sample log of jetted well in NE NE sec. 15, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,007.5 feet; dry, July 28, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark brown 1 1
Clay, silty, calcareous, light gray to tan 3 4
Clay, sandy, calcareous 1.5 5.5
Crete Formation
Sand, coarse to very coarse, clayey; contains abundant limestone pebbles 4.5 10
Clay, sandy, calcareous, tan 11 21
Clay; contains some coarse to very coarse sand 4.8 25.8

15-19-15ad--Sample log of jetted well in SE NE sec. 15, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,002.1 feet; water level, 12.61 feet, July 28, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, calcareous, dark gray 1 1
Clay, calcareous, light gray; contains some fine sand 5 6
Sand, medium, clayey 1 7
Clay, calcareous, light gray; contains some medium to coarse sand 7 14
Sand, coarse to very coarse, well sorted; contains some clay 11 25

15-19-15bc--Sample log of jetted well in SW NW sec. 15, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,001.2 feet; water level, 23.40 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark gray 1.5 1.5
Clay, soft, calcareous, light gray 5 6.5
Clay, sandy, calcareous, gray 0.5 7
Crete Formation
Sand, medium, arkosic, well sorted 3 10
Sand 15.6 25.6

15-19-15dd--Sample log of drilled observation well in SE SE sec. 15, T. 15 S., H. 19 W., 4 feet west of telephone pole 101, 24 feet north and 20 feet west of center of road intersection, Ellis County. Surface altitude, 1,993.0 feet; water level, 26.07 feet, October 29, 1949. Thickness,
feet
Depth,
feet
Soil, friable, brown 1 1
Neogene--Pleistocene
Crete Formation
Silt, tan; contains gravel 5 6
Sand and fine gravel 4 10
Gravel, fine to coarse, arkosic; contains sand and thin clay layers at 18 feet 10 20
Gravel and sand 6.5 26.5
Clay, iron stained, yellow to light gray 0.5 27
Sand, coarse, and fine gravel 3.5 30.5
Sappa(?) Formation
Clay, plastic, sandy, yellow to light gray 4.5 35
Clay, plastic, calcareous, gray 2 37
Sand, coarse to medium; contains a small amount of gravel 1 38
Clay, fine, plastic, sandy, blue gray and light gray 2 40
Grand Island(?) Formation
Sand, coarse; contains thin clay layers 4 44
Sand, coarse, and fine to very coarse gravel 7 51
Cretaceous
Greenhorn Limestone
Limestone, hard, and blue-gray shale 0.5 51.5

15-19-16aa--Sample log of jetted well in NE NE sec. 16, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,023.1 feet; dry, August 18, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Clay, loose, silty, calcareous, black 2 2
Clay, loose, calcareous, light gray 5.5 7.5
Silt, clayey, calcareous, dark brown 16.5 24
Silt, sandy, calcareous, light brown 2 26
Crete Formation
Sand, medium, well sorted; contains many clay particles 6 32

15-19-16cb--Sample log of jetted well in NW SW sec. 16, T. 15 S., R. 19 W., Ellis County. Surface altitude, 2,008.8 feet; water level, 27.70 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark gray 1 1
Clay, silty, calcareous, dark gray 3 4
Silt, calcareous, tan; contains some clay 6 10
Crete Formation
Sand, medium to coarse 8 18
Sand and gravel 13 31

15-19-16dd--Sample log of jetted well in SE SE sec. 16, T. 15 S., R. 19 W., Ellis County. Surface altitude, 1,997.4 feet; dry, August 7, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, clayey and sandy, calcareous, dark brown 7 7
Crete Formation
Sand, no sample collected 11.8 18.8

15-19-18bb--Sample log of drilled test hole in NW NW sec. 18, T. 15 S., R. 19 W., 0.2 mile south and 0.15 mile east of corner, top of low terrace, Ellis County. Surface altitude, 1,980.9 feet; water level, 20.10 feet, October 24, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Sand, medium to coarse, arkosic 2 2
Gravel, fine to medium, quartzose, and coarse sand 3 5
Silt, sandy, gray brown, and coarse sand 7 12
Silt, loose, clayey, sandy, brown 3 15
Gravel, pebbles of quartz and limestone, and brown 8 23
Gravel, medium to coarse, pebbles of quartz and limestone 7 30
Gravel, fine to coarse, pebbles of quartz and limestone; contains gray silt 7 37
Gravel, fine to coarse, pebbles of quartz and limestone, gray, and interbedded silt 5 42
Gravel, coarse, pebbles of igneous rock and limestone; contains blue-gray silt layers 8 50
Gravel, coarse to medium, pebbles of quartz and limestone; contains some silt 10 60
Gravel, coarse, pebbles of igneous rock and limestone 6.5 66.5
Cretaceous
Greenhorn Limestone
Limestone and shale, interbedded, gray to white 2 68.5

15-19-18da--Sample log of jetted well in NE SE sec. 18, T. 15 S., R. 19 W., Ellis County. Surface altitude, 1,975.8 feet; water level, 8.68 feet, September 19, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Sand, very fine, silty, well sorted 8 8
Sand, medium 7 15
Sand, coarse to very coarse; contains some fine gravel and small amount of clay 6 21

15-19-21ad--Sample log of jetted well in SE NE sec. 21, T. 15 S., R. 19 W., Ellis County. Surface altitude, 1,978.2 feet; dry, August 7, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, very sandy in lower zone, calcareous, black to dark gray 5 5
Crete Formation
Sand, coarse 0.5 5.5
Cretaceous
Greenhorn Limestone
Limestone, light tan 0.2 5.7
Clay, calcareous, white 0.4 6.1
Limestone, white to buff 0.1 6.2

15-19-22ad--Sample log of jetted well in SE NE sec. 22, T. 15 S., R. 19 W., Ellis County. Surface altitude, 1,982.4 feet; water level, 16.10 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark gray 3 3
Clay, calcareous, light gray 7 10
Clay, calcareous, blue gray; contains very fine sand 4 14
Crete Formation
Sand, medium to coarse, well sorted 4.7 18.7

15-19-22dd--Sample log of jetted well in SE SE sec. 22, T. 15 S., R. 19 W., Ellis County. Surface altitude, 1,965.5 feet; water level, 16.25 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, calcareous, dark gray 4 4
Clay, sandy to very sandy, calcareous, light gray 14 18
Sand, medium to fine 3 21
Cretaceous
Greenhorn Limestone
Limestone 0.3 21.3

15-19-24bc--Sample log of jetted well in SW NW sec. 24, T. 15 S., R. 19 W., Ellis County, Surface altitude, 1,969.1 feet; water level, 9.05 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, calcareous, dark gray 3 3
Clay, calcareous, gray; contains some coarse sand 9 12
Gravel, fine, well sorted; contains some coarse sand 3.2 15.2

15-19-24cd--Sample log of jetted well in SE SW sec. 24, T. 15 S., R. 19 W., Ellis County. Surface altitude, 1,975.8 feet; water level, 22.40 feet, July 24, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark brown 1 1
Clay, sanely, calcareous, dark gray 4 5
Crete Formation
Sand, fine 2 7
Sand, medium to fine 7 14
Gravel, coarse 1 15
Sand, coarse 1 16
Sand, coarse; contains some gravel 3 19
Gravel, coarse 2 21
Sand and gravel, clayey, coarse; contains some limestone fragments 6 27
Sand, very coarse; contains limestone fragments 1.4 28.4
Cretaceous
Greenhorn Limestone
Limestone, hard, chalky white to gray   28.4

15-19-25aa--Sample log of jetted well in NE NE sec. 25, T. 15 S., R. 19 W., Ellis County. Surface altitude, 1,967,7 feet; water level, 16.20 feet, July 24, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, dark brown 1.5 1.5
Crete Formation
Sand and gravel, clayey, calcareous, light tan 3.5 5
Sand and gravel, medium; contains limestone fragments 1 6
Sand, very coarse 1 7
Sand, fine, calcareous 11.5 18.5

15-19-25bb--Sample log of jetted well in NW NW sec. 25, T. 15 S., R. 19 W., Ellis County. Surface altitude, 1,975.8 feet; dry, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, calcareous, light gray 3 3
Crete Formation
Sand, medium to coarse, well sorted, silty 10.5 13.5
Cretaceous
Carlile Shale
Shale, gray to buff   13.5

15-20-1bb--Sample log of jetted well in NW NW sec. 1, T. 15 S., R. 20 W., Ellis County, Surface altitude, 2,034.4 feet; water level, 22.10 feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, calcareous, dark brown 2 2
Silt, clayey, calcareous, light brown 3 5
Silt, calcareous; contains sand and much limestone gravel 14 19
Sand, medium to coarse, well sorted 5 24

15-20-1da1--Sample log of drilled test hole in NE SE sec. 1, T. 15 S., R. 20 W., 12 feet south of half-mile line and 6 feet west of center of road, Ellis County. Surface altitude, 2,043.0 feet; water level, 36.05 feet, October 22, 1949 Thickness,
feet
Depth,
feet
Silt, compact, dark brown (road fill) 2 2
Neogene--Pleistocene
Loveland Formation
Silt, compact, brown 3 5
Silt, slightly sandy, tan; contains caliche fragments 2 7
Silt, medium compact, buff 8 15
Silt, fairly loose, sandy, gray brown 4 19
Silt, sticky, clayey, dark gray 4 23
Silt, very sandy; contains gravel 3 26
Crete Formation
Gravel, fine to medium, quartzose; contains some coarse gravel 4 30
Gravel, fine to medium, quartzose; contains limestone fragments 5 35
Gravel, fine, pebbles of quartz and limestone; contains some light-brown clay at 37 feet 5 40
Gravel, medium to fine, pebbles of igneous rock and limestone 3.5 43.5
Cretaceous
Carlile Shale
Shale, very compact, calcareous, blue gray 2.5 46

15-20-1da2--Sample log of jetted well in NE SE sec. 1, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,044.6 feet; dry, September 12, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 1 1
Silt, hard, sandy, brown 1 2
Silt, clayey, soft, calcareous, tan; contains some sand 8 10
Silt, loose, clayey, calcareous, brown 10 20
Silt, noncalcareous, da.rk gray; contains some sand 4 24
Crete Formation
Sand, medium, well sorted; contains some gravel 7.9 31.9

15-20-2bc--Sample log of jetted well in SW NW sec. 2, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,057.9 feet; water level, 8.74 feet, September 21, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 1 1
Silt, sandy, dark brown 2 3
Silt, very clayey, plastic, gray 2 5
Silt, loose, sandy, light brown 10 15
Crete Formation
Sand, fine to medium, well sorted, arkosic, silty 3 18
Sand, very coarse; contains fine gravel 7.2 25.2

15-20-2da--Sample log of jetted well in NE SE sec. 2, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,015.7 feet; water level, 9.49 feet, September 20, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Soil, silty to sandy, dark gray 1 1
Silt, sandy to very sandy, loose, gray 4 5
Sand, medium to very coarse, poorly sorted; contains some medium limestone gravel near top 7.5 12.5

15-20-4aa--Sample log of jetted well in NE NE sec. 4, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,054.0 feet; water level, 7.12 feet, September 23, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Soil, silty, sandy, black 1 1
Silt, clayey, soft, sandy, gray 2 3
Silt, soft, sandy, tan 2 5
Sand, medium to coarse, silty 1 6
Silt, loose, slightly sandy, tan 6 12
Sand, coarse to very coarse; contains some gravel 4.5 16.5
Silt, clayey, gray; contains much coarse gravel 11.5 28
Gravel, medium, pebbles of igneous rock; contains some silt 0.5 28.5

15-20-4cc1--Sample log of jetted well in SW SW sec. 4, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,004.5 feet; water level, 8.30 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, sandy to clayey, dark gray 3 3
Sand, medium to very coarse; contains some gravel zones 17 20

15-20-4cc2--Sample log of jetted well in SW SW sec. 4, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,024.8 feet; water level, 23.90 feet, September 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Terrace deposits
Silt, sandy, clayey, calcareous, dark gray 26 26
Sand, coarse to very coarse 4 30

15-20-4da--Sample log of jetted well in NE SE sec. 4, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,040.7 feet; water level, 18.90 feet, September 20, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, silty, black 1 1
Silt, dark gray; contains some sand 2 3
Silt, clayey, plastic, light gray; contains some sand 3 6
Silt, loose, blocky, brown 10 16
Crete Formation
Sand, medium to coarse; contains some fine gravel 7 23

15-20-5ad--Sample log of jetted well in SE NE sec. 5, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,053.5 feet; dry, August 15, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Crete Formation
Silt, sandy, calcareous, dark gray 1 1
Sand, very fine, silty 6.5 7.5
Sand, coarse to very coarse; contains fine gravel 7.5 15
Sand, fine 1 16
Sand, very coarse 2 18
Sand 12 30

15-20-9aa--Sample log of jetted well in NE NE sec. 9, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,014.6 feet; water level, 5.30 feet, September 20, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, calcareous, dark brown 2 2
Clay, soft, sandy, calcareous, light gray 2 4
Clay, brown; contains coarse sand and some gravel 1 5
Sand and gravel, very coarse, poorly sorted 4 9
Sand, medium, clayey 1 10
Sand, medium, very clayey 5 15
Sand, fine; contains gray silty clay 8 23

15-20-11ad--Sample log of jetted well in SE NE sec. 11, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,001.5 feet; water level, 11.1S feet, September 16, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, very sandy (fine sand), tan 1 1
Crete Formation
Sand, silty, poorly sorted, very fine to coarse 6 7
Silt, clayey, sandy, plastic, tan 10 17

15-20-12aa--Sample log of drilled observation well in NE NE sec. 12, T. 15 S., R. 20 W., 20 feet west and 18 feet south of center of crossroads, Ellis County. Surface altitude, 2,038.4 feet; water level, 39.23 feet, October 22, 1949. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Silt, slightly sandy, dark brown 2 2
Clay, sandy, dark gray to tan; contains caliche 3 5
Silt, loose, sandy, brown to tan 2 7
Silt, sandy, rusty brown 1 8
Silt, friable, sandy, tan 2 10
Crete Formation
Sand, coarse, quartzose, and rusty-brown silt 5 15
Gravel, medium to coarse, quartzose, and fine to medium sand; contains a 0.5-foot clay layer at 18 feet 5 20
Gravel, coarse to fine, quartzose 5 25
Gravel, fine to coarse, pebbles of quartz and limestone; contains some coarse sand 5 30
Gravel, medium to coarse, pebbles of quartz and limestone 5 35
Gravel, coarse, pebbles of quartz and limestone; contains clay layer at 37 feet 5 40
Sand, medium to coarse, quartzose; contains some limestone pebbles 5 45
Gravel, fine to medium, pebbles of quartz and limestone; contains 8-inch clay layer at 48 feet 6 51
Sappa(?) and Grand Island(?) Formations
Clay, compact, plastic, gray; contains lag 4 55
Sand, medium to very coarse, quartzose; contains some medium gravel 3 58
Cretaceous
Carlile Shale
Shale, compact, calcareous, blue black to blue 2 60

15-20-12bb--Sample log of jetted well in NW NW sec. 12, T. 15 S., R. 20 W., Ellis County. Surface altitude, 2,043.3 feet; dry, September 13, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Loveland Formation
Soil, compact, gray 1 1
Silt, loose, clayey, sandy, brown; contains some caliche particles 9 10
Crete Formation
Sand, medium to coarse; contains some gravel 23.6 33.6

15-21-2bb--Sample log of drilled test hole in NW NW sec. 2, T. 15 S., R. 21 W., 90 feet north and 30 feet east of center of road intersection, Trego County. Surface altitude, 2,031.4 feet. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, brown 1 1
Sand, fine to coarse; contains some brown silt 4 5
Gravel and sand, fine to coarse 3 8
Gravel, fine to coarse, and medium sand 3 11
Cretaceous
Carlile Shale
Shale, black and blue black to dark gray 3 14

15-21-3ad--Sample log of drilled test hole in SE NE sec. 3, T. 15 S., R. 21 W., 0.45 mile south of corner and 10 feet west of center of road, Trego County. Surface altitude 2100.7 feet. Thickness,
feet
Depth,
feet
Silt, brown to gray (road fill) 3 3
Neogene--Pleistocene
Loveland Formation
Silt, slightly sandy, reddish brown 9 12
Silt, sandy, tan, and medium sand 3 15
Crete Formation
Sand, medium to coarse, and fine gravel 5 20
Sand, fine to coarse; contains silt at 25.5 feet 5.5 25.5
Gravel, fine, and coarse sand 2.5 28
Gravel, medium to coarse 2 30
Cretaceous
Carlile Shale
Shale, gray, blue black, and black 4 34

15-21-3dd--Sample log of drilled test hole in SE SE sec. 3, T. 15 S., R. 21 W., 100 feet north and 7 feet west of center of road intersection, Trego County. Surface altitude, 2,148.8 feet. Thickness,
feet
Depth,
feet
Silt, brown (soil and road fill) 1 1
Neogene--Pleistocene
Loveland (?) Formation
Silt, clayey, tan 1 2
Silt, sandy, buff 2 4
Clay, pliable, plastic, tan to light gray 2.5 6.5
Cretaceous
Carlile Shale
Shale, plastic, gray to blue gray; contains bentonite 3.5 10

15-22-1ab--Sample log of jetted well in NW NE sec. 1, T. 15 S., R. 22 W., Trego County. Surface altitude, 2,068.6 feet; water level, 8.30 feet, July 14, 1950. Thickness,
feet
Depth,
feet
Neogene--Pleistocene
Alluvium
Silt, clayey, dark brown 9 9
Sand, medium to coarse 6 15
Cretaceous
Carlile Shale
Shale, blue 0.5 15.5

16-17-1bb2--Sample log of drilled test hole in NW NW sec. 1, T. 16 S., R. 17 W., 0.1 mile south of corner and 5 feet east of center of road, Rush County. Surface altitude, 1,887.7 feet; water level, 19.90 feet, November 3, 1949. Thickness,
feet
Depth,
feet
Soil, compact, brown (road fill) 3 3
Neogene--Pleistocene
Crete Formation
Silt, slightly sandy, calcareous, tan 4 7
Sand, medium to coarse, and fine to medium gravel 3 10
Gravel, fine to medium, arkosic, and coarse sand 5 15
Gravel, medium to fine, quartzose 5 20
Gravel, coarse to medium 5 25
Cretaceous
Greenhorn Limestone
Shale, calcareous, gray. and blue gray, and yellow clay 2 27

16-17-1bc--Sample log of drilled test hole in SW NW sec. 1, T. 16 S., R. 17 W., 0.4 mile south of corner and 5 feet east of center of road, Rush County. Surface altitude, 1,896.9 feet; water level, 24.80 feet, November 3, 1949. Thickness,
feet
Depth,
feet
Silt, solid, brown (road fill) 3 3
Neogene--Pleistocene
Loveland Formation
Silt, compact, tan 5 8
Crete Formation
Sand, medium to coarse, well sorted 5 13
Gravel, fine to medium, and medium to coarse sand; contains silt 7 20
Gravel, fine to medium, pebbles of igneous rock, limestone, and shale 6 26
Cretaceous
Greenhorn Limestone
Shale, clayey to compact, gray and blue gray 2 28

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Kansas Geological Survey, Geology
Placed on web Feb. 4, 2013; originally published March 1961.
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The URL for this page is http://www.kgs.ku.edu/Publications/Bulletins/149/08_logs.html