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Water W ell # 11 UNION PACIFIC RAILROAD COMPANY L a s V e g a s , Nevada FROM TO FEET CUT FORMATION 0* 57* 57* Surface 57* 101' 104* Red elay, gravel & hard sh e lls 161* 252* 91* Red clay, g ra v e l, hard streaks 252* 360* 108* Coarse gravel - Top o f gravel - (Started taking ditch, samples at 360’ ) (Took ditch samples every 10 f t . from) (360* to 940*, F in al Depth. ) DEPTH OF SAMPLE at 360* 370* 380* 390* 400* 410' 420' 430» 440* 4501 460» 470* 4801 Rounded pebbles up to 1/2" diameter. A l l g rav el. (No clay o r lim estone). Pebbles are q u artz ite . Top or clay )_ 3Q5 Bottom o f gravel ) Red clay, few grains o f very fin e grained g ra v e l. 98% clay. B u ff and red clay . No sand or g ra v e l. B u ff and red clay and coarse g ra v e l. Pebbles up to 1/3" diameter. 50% clay, 50% g ra v e l. Gravel is probably carvings. Red clay with a few rounded pebbles, pebbles 1/3" diameter. 95% clay. Red clay . No gravel Red clay with few p ebbles. Pebbles up to 1/3" diameter. 98% clay. Red clay with s n a il amount o f limestone.- 90% clay Red clay & medium grained g ra v e l, few pieces o f lim estone. 50% clay & 50% g ra v e l. Average pebble siz e : 1/4" diameter. Coarse grav el and red cla y , pebbles up to 1/2" diameter. 90% g ra v e l, pebbles rounded. Red clay , with small amount o f g ra v e l. 90% clay, pebbles up to 1/2" diameter. Red clay, occassional p ebbles, 99% clay Red c la y , no pebbles