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BORING LOG NO. B-1 Page 1 of 2 <br /> PROJECT: Staples Rockery Failure CLIENT: Hilbers, Inc. <br /> Kent,WA <br /> SITE: 4920 Evergreen Way <br /> Everett,WA <br /> O• LOCATION See Exhibit A-2 J Z w w <br /> >o i mn z <br /> O Latitude:47.9521°Longitude:-122.2149° v ¢ ~ F a m W z <br /> o- H wu- W ow 2� ¢I- Z <br /> CY <br /> CC IL ,d Jw (1) <br /> O Approximate Surface Elev.:324(Ft.)+/- o Q<n LL Z O <br /> DEPTH ELEVATION(Ft.) :°) U o_ <br /> 1 1AGGREGATE BASE COURSE 32-3.5— <br /> SAND(SP),trace silt and gravel,fine to medium grained,yellow brown, — <br /> moist,loose, _ <br /> (FILL) <br /> 5= X <br /> 43 S1 <br /> N=4 <br /> M • :8.0 316+/- _ <br /> SAND(SP),fine to medium grained,yellow brown with interbedded gray <br /> brown,moist,loose,with interbedded silty sand layers — <br /> W <br /> (DISTURBED ADVANCE OUTWASH) 10— \ / <br /> o _ /�(\ 4-2-24 S-2 16 9 <br /> 0 <br /> LL :. <br /> } <br /> W :. - <br /> o <br /> 15— <br /> w gravel within sample shoe for S-3 12-18-20 S-3 <br /> N=38 <br /> OJ — <br /> J <br /> yellow brown to light brown,moist, medium dense,interbedded silty sand 20— 7-8-3 <br /> — N=11 S-4 <br /> 0 .. <br /> 0 _ <br /> driller notes harder drilling at 23 feet <br /> a 23.0 301+/- — <br /> SAND(SP),trace silt and gravel,fine to medium grained,yellow brown to <br /> o light brown,moist,dense to very dense — <br /> : <br /> (ADVANCE OUTWASH) 25- <br /> 12-21-26 <br /> ° - dense,interbedded silty sand,trace gravel — N=47 S-5 <br /> LL 30- <br /> 0 <br /> w <br /> HStratification lines are approximate.In-situ,the transition may be gradual. Hammer Type: Automatic(ETR=87%) <br /> a <br /> w <br /> LL Advancement Method: See Exhibit A-3 for description of field Notes: <br /> Hollow Stem Auger procedures. <br /> 0 <br /> a See Appendix B for description of laboratory <br /> > procedures and additional data(if any). <br /> H Abandonment Method: See Appendix C for explanation of symbols and <br /> N Boring backfilled with bentonite chips upon completion. abbreviations. <br /> O Elevations obtained from Google Earth <br /> 0 <br /> J WATER LEVEL OBSERVATIONS <br /> 0 Boring Started:12-21-2017 Boring Completed:12-21-2017 <br /> E Not encountered lierraconRig: Gregory Drilling <br /> Drill CME-55 LCX Driller:Gre o <br /> O 21905 64th Ave W,Ste 100 <br /> H Mountlake Terrace,WA Project No.:81175122 Exhibit: A-4 <br />