Laserfiche WebLink
Wright Environmental Services, Inc , Tracy, CA Exploratory Boring Log <br /> Project No 4090 Boring/Welt No MW-5 Weil Installed 2" dia Sch 40 PVC <br /> 40 tient Mr Ed's Muffler Date Drilled July 21, 1997 Total Depth 20' Casing Depth 17' <br /> ocatton 595 E lith St , Tracy,CA Logger CMP Screen Length and Size 10' of 0 020" <br /> Drilling Method 8" OD Hollowstem Top of Sand Pack 6' Sand Size 2112 <br /> Permit: SR#013082 Top Bentonite 5' Cement Grout Seal 5' to 0 5' <br /> Water Levels 1 st Enc 10 5' Q 2 59 pm Surface vault box, Casing Elev 4779 MSL. <br /> Static 10 5' ® 3 30 pm <br /> Sample Blow c. Depth Borehole <br /> No OV Count cin (f t) <br /> Leg Completion <br /> Gravel Fill <br /> CL - Silty CLAY with Sand, olive gray 5Y4/2, low plasticity, "•" <br /> dissem sand 30%, silt 10%, massive, drills firm, damp ^` <br /> 5 <br /> MW-51 push Same as above, damp <br /> 1 0 SC/CL - Interbedded Clayey SAND and Sandy CLAY, brown, <br /> Mw-5 - 1 1 7 5YR5/4, gray stains, very weak odor, v f sand 40-60%, <br /> clay 40160% and low plasticity, SC saturated, CL moist, med <br /> dense to stiff <br /> 15 Driller calls harder drilling at 15 feet <br /> MW-5 2 - 9 SW - SAND, varigated, fine to coarse grained, clay/silt<5% and <br /> coats grains, grams in contact, massive, loose, saturated, <br /> minor flowingat 16 feet <br /> r•r•r•r•r•r•r•r <br /> rrir�rrr�r <br /> rrri rrfir <br /> 1W-5 _ 8 � � Y4• <br /> r1r�r1r��lrti <br /> — 20 CL - S+Iry CLAY, yellowish brown 10YR5/6, low plasticity, <br /> dissem v f sand 10%, massive, firm, damp <br /> Bottom of Boring = 20 feet, <br /> borehole flows upon completion <br /> to 17 feet <br /> Reviewed by RG/CEG <br />