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SOIL BORING LOG Boring No. MW-21 Sheet: 3 of 3 Client FomwPefsatlesGas an7 Wash No.0835 Date May 31,2007 Address 2705 Country Club Blvd Drilling Co. Resonant Sonic,Inc rig type:Sonic Stockton,CA Driller Jesse Project No. 2007-0835-01 Method Sonic Hole Diameter:9 in. Logged By: Allan Dudding Sampler. Well Pack sand: 26 ft. to 46 ft. Well Construction Casing Material: Schedule 40 PVC Screen Interval:30 ft. to 45 ft bent.: 23 ft.to 26 ft. Casino Diameter:2 in. Screen Slot Size:0.0204n. grout 0 ft.to 23 ft. Depth to GW: 7first encountered =14 feet bgs tatic Sample v Sam le well Depth Lithologlc PID T No. Count81kwMe ltecay. ns Scala Column Descriptions of Materials and Conditions PPM __ — 41 SP FGLEY1 4/5G_ raded Sand,SP,dark greenish ra ,fine to medium grained,loose,wet,no odors,no staining. 42 --------- Silty Sand,SM,dark greenish gray(GLEY1 4/5G),fine to medium grained, -� = 43 SM loose,wet,no odor,no stainin o raded.............................. 9.P°_1y —-- 44 Poo raded sand,SP,dark greenish gray(GLEY14/5G,fine to SP medium grained,loose,wet,no odor,no staining. = 45 S MW-21 N/A 0941 100°k 0 --^ 45•-4648 47 S11t with nd sa ,ML,dark greenish gray(GLEY1 4/5G),very fine grained 48 ML sand,non-plastic,ftrm,moist,no odor,no stainin - ---------------- ---- -— ____... 49 50 _ Boring terminated at 50 feet bgs. -- ..— ---- -^- —51 ----------------— - ------__--^---- ---».».»_»_ --—---- -- "--- --- «—» --- ---- —52 --------------------------—------------------ --- ---» — -» 53 54 ----------------------------------------------------«-»- -- --^— -- ---- - --- ------- ----- --56 -------------------------------------------------------------------- ----- -- ---- —_ --- »... —59 -- -so Recovery Comments: Sample : ENVIRONMENTAL INC: , Gori n1l log MW- I