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Introduction
Geologic Setting
Ground Water
Well Records
Logs
References
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Logs of Wells and Test Holes, continued

T. 1 S. || T. 2 S. || T. 3 S. || T. 4 S. || T. 5 and 6 S.

2-26W-21ccc--Sample log of test hole in the SW SW SW sec. 21, T. 2 S., R. 26 W., 135 feet east and 15 feet north of center of crossroads; drilled October 1962. Altitude of land surface, 2,622 feet.				Thickness, feet	Depth, feet
Quaternary System
	Pleistocene Series
		Peoria and Loveland Formations
			Silt, dark-brown	8	8
			Silt, sandy, light-brown	4	12
Tertiary System
	Pliocene Series
		Ogallala Formation
			Silt, very sandy, limy, light-tan	18	30
			Silt, sandy, limy, cemented, light-tan	20	50
			Silt, very sandy, limy cemented, light-tan	20	70
			Sand, fine, silty, very limy, cemented, hard	15	85
			Silt, very sandy, limy, cemented	15	100
			Sand, fine, very limy, cemented	10	110
			Sand, fine to medium, limy, cemented	10	120
			Silt, very sandy, limy, cemented	16	136
			Sand, fine to very coarse	6	142
			Bentonite, grayish-green	5	147
			Sand, fine to very coarse, cemented	13	160
			Gravel, fine to medium, and very coarse sand	25	185
			Silt, sandy, brown	7	192
			Sand, medium to very coarse, cemented	18	210
			Gravel, fine, and very coarse sand, clean	12	222
Cretaceous System
	Upper Cretaceous Series
		Niobrara Chalk
			Shale, dark-gray	13	235

2-28W-22acc--Driller's log of irrigation well in the SW SW NE sec. 22, T. 2 S., R. 28 W.; drilled by Elmer Corder. Altitude of land surface, 2,511 feet; depth to water, 25.4 feet.				Thickness, feet	Depth, feet
Quaternary System
	Pleistocene Series
		Alluvium
			Top	19	19
			Sand and clay	9	28
			Clay	17	45
			Sand, dark	6	51
			Silt, blue	1	52
			Sand, loose	6	58
			Clay	2	60
			Sand	1	61
			Clay	1	62
			Sand, loose	6	68
Cretaceous System
	Upper Cretaceous Series
		Niobrara Chalk
			Shale	2	70

2-28W-31abc--Driller's log of irrigation well in the SW NW NE sec. 31, T. 2 S., R. 28 W.; drilled by Elmer Corder. Altitude of land surface, 2,551 feet; depth to water, 19.9 feet.				Thickness, feet	Depth, feet
Quaternary System
	Pleistocene Series
		Alluvium
			Top	45	45
			Sand	9	54
			Sand, fine	3	57
			Sand, coarse	4	61
			Sand, fine	2	63
			Sand, coarse	2	65
Cretaceous System
	Upper Cretaceous Series
		Niobrara Chalk
			Shale	2	67

2-29W-31ccc--Sample log of test hole in the SW SW SW sec. 31, T. 2 S., R. 29 W., 150 feet north and 20 feet east of SW corner; drilled October 1952. Altitude of land surface, 2,763 feet.				Thickness, feet	Depth, feet
Quaternary System
	Pleistocene Series
		Peoria and Loveland Formations
			Silt, sandy, tannish-brown	4	4
			Silt, tan and gray	18	22
			Silt, sandy, tan	6	28
Tertiary System
	Pliocene Series
		Ogallala Formation
			Silt, limy, light-tan and light-gray	3	31
			Sand, fine to coarse, cemented	15	46
			Sand, fine to medium, silty, limy	18	64
			Sand, fine to coarse, and fine gravel, cemented	18	82
			Silt, sandy, tan	3	85
			Sand, fine to coarse, and fine gravel, limy, cemented	5	90
			Silt, sandy, tan	4	94
			Sand, fine to coarse, and fine to medium gravel	11	105
			Sand, fine to medium, silty	20	125
			Silt and fine sand, tan	29	154
			Sand, fine to coarse, and fine gravel, silty	19	173
Cretaceous System
	Upper Cretaceous Series
		Pierre Shale
			Shale, yellowish-tan and light-gray	17	190

2-30W-32bbb--Sample log of test hole in the NW NW NW sec. 32, T. 2 S., R. 30 W., 35 feet south and 15 feet east of center of crossroads; drilled October 1962. Altitude of land surface, 2,899 feet.				Thickness, feet	Depth, feet
Quaternary System
	Pleistocene Series
		Peoria and Loveland Formations
			Silt, brown	12	12
			Silt, sandy, tan	18	30
Tertiary System
	Pliocene Series
		Ogallala Formation
			Silt, sandy, very limy, light-tan	10	40
			Sand, fine, very silty	10	50
			Silt, sandy, limy	26	76
			Sand, medium to very coarse, and fine to medium gravel, clean	14	90
			Gravel, fine to medium, and very coarse sand	15	105
			Silt, very sandy, limy; contains cemented layers	15	120
			Sand, fine to medium; contains layers of limy silt	45	165
			Sand, medium to very coarse, and fine gravel	10	175
			Sand, fine to medium, cemented	10	185
Cretaceous System
	Upper Cretaceous Series
		Pierre Shale
			Shale, brown	15	200

T. 1 S. || T. 2 S. || T. 3 S. || T. 4 S. || T. 5 and 6 S.

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Kansas Geological Survey, Geology
Placed on web Oct. 8, 2008; originally published Dec. 1969.
Comments to webadmin@kgs.ku.edu
The URL for this page is http://www.kgs.ku.edu/General/Geology/Decatur/06_logs2.html