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\ UNION PACIFIC RAILROAD COMPANY LAB VEGAS, NEVADA Water Well #8 Location: 290* South and 728* West of e£ Corner, Section 31, 20 - 61, M.D.B.&M. Elevation: 2126* (Cement Matt) Spudded: March 17, 1942 Completed: March 29, 1942 Total Depth: 766 Casing Record 13-3/8* - 48# south Chester Tube Co*s l&pweld, 8-V thread cemented at 610,67. Cemented with 388 sacks Victor Modified Cement, none treated. 10-3/4* - 46,8# - A.©.Smith, Security Engineering Co’s flush joint liner, 283.81* long set with shoe at 760.50. Top at 476.69. All of liner perforated, 60 mesh, 2* slots, 6* centers, 18 rowe. m. From 12 Feet Gut Formation 0 24.56 24.56 Surface 24.56 27 2.45 Hard shell 27 35 8 Sand and chalk 38 40 5 Chalk 40 50 10 White and pink limestone with few grains gravel 50 70 20 Limestone, clay and gravel, 30* each Hard shells 45* to 56* 70 90 £0 Clay with little limestone (no gravel) 90 100 10 Limestone and coarse gravel with small amount o: clay 100 130 30 Limestone with few grains of gravel 130 140 10 Limestone 140 170 30 Clay and limestone, 70% clay 170 190 20 Limestone with small amount clay. 90$ limestone 190 200 10 Clay and limestone, 60$ each 200 220 20 Buff colored clay with few pieces of limestone and grains of gravel. (Few hard shells from 206 to 216) 220 230 10 Clay and limestone, 50$ each. Few pebbles 230 240 10 Buff colored clay, with few pieces of limestone 240 290 50 Buff colored clay with small amount of gravel. Percent of clay increases from 60$ at top to 100$ at bottom