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ASPHALT Asphalt Specialties Co., Inc.
<br /> Project: La Salle Property
<br /> SPECIALTIES CO. Log of Boring: TH-15
<br /> 10100 Dallas Street Date: 6/8/2020 Boring Lat./Long.: 40.35376/-104.73115
<br /> Henderson,CO 80640 Drilling Company: Dakota Drilling Boring Ground Elevation: 4,667 ft amsl
<br /> Phone 303-289-8555 Drilling Method: Hollow Stem Auger(HSA) Boring Total Depth: 37 ft bgs
<br /> GRAPHIC DEPTH TO IE. E
<br /> O.
<br /> a LOG LITHOLOGIC DESCRIPTION SAMPLES COLLECTED WATER w
<br /> cx or
<br /> Ground Surface 4,667
<br /> Overburden(Topsoil) bs66=
<br /> 2_ 4,665_
<br /> 3_ = 4,664
<br /> 4_- Sand with little gravel,brown,fine to medium grained sand,moist,no 4663
<br /> odor
<br /> 4,662_
<br /> - Gravelly sand,orangish-brown,coarse grained sand[#4 minus]with
<br /> some medium to fine grain sizes(sand size coarsening with depth),wet, ass,
<br /> 7_ »: no odor 4,860-
<br /> 8- 4,659-
<br /> 9-- :;;:: 4,658_
<br /> 10 4.657-
<br /> - •'''?.Gravelly sand,orangish-brown,coarse grained sand[1/4-inch minus]with -
<br /> 1 4,656-
<br /> little fines,wet,no odor
<br /> 4,655_
<br /> 13- ?:::::?I{ 4,654
<br /> 4,653-
<br /> 15--:•:_•:•Si:•:•:(•i 4,652-
<br /> 16--z ?il?2 4,651 -
<br /> 17 4,650-
<br /> 18 4,649
<br /> 19- No Samples Collected from TH-15 4648=
<br /> 20=" """ 4,647-
<br /> 21 4,646=
<br /> 22-- ?- ":[?: 4,645
<br /> 23-;.'i%::: ;:: 4,644-
<br /> 24- 4,643-
<br /> 25_ 4,642
<br /> 26 4,641 -
<br /> 27- 4,640_
<br /> 4,639_
<br /> 4,638=
<br /> 30 4,637_
<br /> 31_>5 >:.:''. 4,636_
<br /> 4,635=
<br /> 4,634=
<br /> 34 4,633=
<br /> 4,632_
<br /> 36-;;,•;;;.;;.•,'< 4,631 _
<br /> 37-- ,. ..,...,.,.. 4,630
<br /> 38_-IIIIIIIIIIIIIIIIIIIIIII Top of shale encountered at approx.37 feet bgs=Boring TH-15 Total Depth 4,629=
<br /> 39_ 4,628-
<br /> 40- 4,627
<br /> 41 _ 4,626_
<br /> 42_ 4,625-
<br /> 43_ 4,624_
<br /> 44_ 4,623-
<br /> 45 4,622
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