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Water V eil #7 UNION PACIFIC RAILROAD COMPANY LAS VEGAS, NEVADA Location: 360' North and 450* West of Ej Corner. Sec 31 - 20- 61- M.D.B.&M. Elevation: 2122* Spudded: 3:15 A.M. March 7, 1942 Completed: 9:00A.M. March 14, 1942 Total Depth 485* Casing Record 13-3/8M - 48# South Chester Tube Co*s lapweld, SV thread casing cemented at 275*. Cemented with 218 sacks of Modified Oil Well Cement. None treated. 10-3/4" - 45.5# - A.O.Smith (with H ydrill Co*s flush Joint) lin e r, 255.30* long Including Baash-Ross Adapter landed at 460*. Top of Adapter at 207.10*. Lower 216* of lin e r perforated with 60 mesh, 2" sla ts, 6" centers, 18 rows. From To Feet Cut 0 40 40 40 85 45 85 150 65 150 210 60 210 250 40 250 280 30 280 320 40 320 350 30 350 390 40 390 460 70 460 475 15 475 485 10 LOG Formation Clay with some limestone. 754 clay, Hard limestone shells 10' to 16* and from 19* to 2 0 * Clay and gravel. 60# clay, hard shells 41* to 78* Clay. Hard shells: 125 to 138. Gravel, sand and limestone. 30# each. Hard sh ell. 204 to 210 Gravel, streaks sandy brown clay. 80# gravel Sandy brown clay, streaks of gravel. 65# clay Gravel. Medium sleed pebbles. Gravel and yellow clay, 60# gravel Gravel, medium sized pebbles Coarse grained gravel, streaks of reddish clay 90# gravel. Hard shell at 398* Sand and gravel. Streaks of yellow clay. 90# sand and gravel. 10# clay Red clay and sharp gravel with small amount limestone. Few hard sh ells, 20# gravel, 20# clay, 10# limestone.