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Project: Everett Shipyard Log of Boring MW-7 <br /> Project Location: Everett,Washington <br /> Project Number: 33761354 Sheet 1 of 1 <br /> • <br /> Date(s) 12/8/08 Logged By BTG Checked By DRR <br /> Drilled <br /> Drilling Total Depth <br /> Drilling Hollow Stem Auger ConUactor Cascade Drilling of Borehole 12.5 feet bgs <br /> Method , <br /> Drill Rig Truck Mounted Drill Bit 6,. Ground Surface 15.27 feet MSL <br /> Type Size/Type Elevation <br /> Groundwater Level 3.5 Sampling Split Spoon Hammer STD <br /> Method Data <br /> Borehole Location <br /> Backfill <br /> SAMPLES <br /> N I; \ rn O <br /> o Q o E REMARKS AND <br /> co. o f a o a MATERIAL DESCRIPTION o cCD WELL DETAILS <br /> Ti <br /> w,a? o o �- <br /> 3 U :Ucn <br /> U c <br /> 4 1- Z m o: O 0 n <br /> U.0 SP Black/brown SAND with silt and gravel,mottling at base(moist) �� 14:28 <br /> —15 1"0:5 ';;r (loose)(30%abrasive grit)(fill) <br /> ;:; Grading dark brown,silty,fine to medium SAND with trace gravel 4 •/ <br /> :K: (mioist)(dense)(with abrasive grit)(no odor,no staining) <br /> Grading light brown/tan medium SAND(moist)(medium dense) 14:30 <br /> MW_7_ :'•:, (hydraulic fill) <br /> 1-2 10 0.0 <br /> 2 iilli tip:::— 14:35 <br /> I <br /> :z:::s Grading tan/light gray,very fine to medium SAND,slight mottling in <br /> _7_ _ very fine sand laminations(moist to wet) - <br /> 23 6 0.0 — —• •15:00 <br /> 3-4 .9 i Grading wet <br /> 4 ..(• •— .• <br /> ?• ML/SM Gray,veryfine sandy SILT to silty very fine SAND with trace _ <br /> M _ • • ?,- organics(wet)(medium stiff) - •_ <br /> 6- :>.; ill <br /> :::::::: ...:._ <br /> —10 90�: r; '• <br /> D 6— _ — • <br /> • <br /> — <br /> 5 SP Gray/dark gray,fine to medium SAND(wet)(loose) _ <br /> d <br /> _ • y:::,:: <br /> K 8 <..: 0.0 ,:ce:` — •_ <br /> Grading 1"organic rich layer in gray sand •c <br /> M 10 _ <br /> ..,, ,, <br /> rc 12— 6 :!9D( 0.0 •- <br /> Boring was completed to 12.5'bgs. <br /> n — — Groundwater was encountered at 3.5'bgs. — <br /> Boring was completed as monitoring well: <br /> o _ 2.5'-12.5' screen,2"diameter Sch 40 PVC with 0.020"slot _ <br /> 0'-2.5' blank 2"diameter Sch 40 PVC <br /> o <br /> Fill Annulus: <br /> w 14_ 2'-12.5' 10/12 silica sand filter pack <br /> 9 _ - 1.5'-2' 3/8"bentonite chips-hydrated - <br /> 0'-1.5' cement-part of flush mount surface completion0 <br /> w <br /> x - <br /> 96 <br /> N <br /> Z <br /> W 11,12121 <br />