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ASPHALT Asphalt Specialties Co., Inc.
<br /> Project: La Salle Property
<br /> SPECIALTIES CO. Log of Boring: TH-4
<br /> 10100 Dallas Street Date: 6/8/2020 Boring Lat./Long.: 40.349867/-104.736197
<br /> Henderson,CO 80640 Drilling Company: Dakota Drilling Boring Ground Elevation: 4,672 ft amsl
<br /> Phone 303-289-8555 Drilling Method: Hollow Stem Auger(HSA) Boring Total Depth: 39 ft bgs
<br /> a GRAPHIC DEPTH TO �-E
<br /> ta a LITHOLOGIC DESCRIPTION SAMPLES COLLECTED
<br /> LOG WATER
<br /> 0 Ground Surface 4,672
<br /> 1 _ Overburden(Topsoil) 4s71 _
<br /> 2_ 4,670
<br /> Gravelly sand,brown,medium grained sand with some coarse[#4 minus]
<br /> 3--``"``'. :"to fine grain sizes(%coarse sand increasing with depth),dry until 3 ft 1 asss
<br /> 4 bgs,no odor 4,668-
<br /> 5 4,667_
<br /> 4,666
<br /> 7 ;:•:.' 4,865
<br /> 8_ •_{;:. 4,664-
<br /> 9_::;;:;;%:::::. 4,863_
<br /> 10_ _ _ 4s62_
<br /> Gravelly sand,orangish-brown,coarse grained sand[1/4-inch minus]with
<br /> 11-`'.•:'"` little fines,wet,no odor assl
<br /> 4,660
<br /> 13_ :}:::: {{:} 4,659
<br /> 14_:Ii {:•,{:.:; 4,658_
<br /> 15- - 4:4} 4,657-
<br /> 18 4,656
<br /> 17_ ;:<�:�: 4,655_
<br /> 18 4,654
<br /> 19 - { 4,653_
<br /> 20_- ,.,.,..,.,.. Composite Sample Collected From 4,652
<br /> 21 - <:::' Material Between 2 to 39 ft bgs 4,651 -
<br /> 22_.:;:;?:'i•>}?}: 4,650
<br /> 23_ •
<br /> 4,649
<br /> 24 - ?::':['':'>: 4,648-
<br /> 25_ 4,647-
<br /> 26-- >:>:>:i:i 4,846_
<br /> 4,645_
<br /> 26_: :'::::::::::::: 4,644_
<br /> 29 ? ..;.;;.;;';.' 4,643_
<br /> 30 - • 4,642_
<br /> 4,641 _
<br /> 32_-:;i:,{:. 'i??;' 4,640
<br /> 33- . 4,639
<br /> 34 4,638
<br /> 35-Li'it::•:•:•L 4,637_
<br /> 36 4,636_
<br /> 4,635-
<br /> 38 4,634_
<br /> 39 - ::::::i:••: 4,633_
<br /> ao_-llllllIuWmmuuu Top of shale encountered at approx.39 feet bgs=Boring TH-4 Total Depth 4,632_
<br /> 41 - 4,631 _
<br /> 42_ 4,630_
<br /> 43_ 4,629_
<br /> 44_ 4,828_
<br /> 45 4,627
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