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i Advanced BORING LOG ,,. ., GeoEnvironmental, Inc. BOREHOLE NO.: MW-4 J' 837 Shaw Road, Stockton, CA 95215 TOTAL DEPTH: (209)467-1006 t*AX:{209)467-�11 s 35 Feet Project: Bob's Muffler Shop Drillin Co.: Mitchell Drilling Environmental Corp. � i Site Location: 466 Moffat Boulevard Rig/AL ger Type: CME-75HT/8"Dia. Hollow Stem Augers Manteca, California Logge By: T. Mikaeich Revie ed By: N. Henderson .Project No.: AGE'-NC-98-0520 Date(s) Drilled! 12110/99. Vater level during drilling Notes: Page 1 of 1 Nater level in completed well . i Sample Blows PID Soil USCS Class a d Well Well Depth . ID: (per 6') (ppm) Symbol Soil Description Completion i Description 0 I F- I Cementg rout seal from 0.5.to 9'bsg. 5 No sample collected. SP Brown,moist,medium dense, OORLY GRADED MW-4-10' 4/6/12 b.0 SAND;with fine to medium sand,trace silt fines;loose, Benfonite seal from 9 micas,no petroleum hydrocarbon(HC)odor.- to 12' bsg. SP:Brown,moist,medium dense, POORLY GRADED -15 MW-4-15' 7/9/15 0.4 SAND;with medium sand,trace silt fines and coarse #3 sand from 12 to 35' j sand,faint HC odor.Change at 15 feet bsg:brown to bsg. olive-gray,moist,medium dense,F OaRLY GRADED SAND;with fine sand,some silt, ark brows mottling: i ML:Green to olive-gray,wet,stiff,SILT;with micas,-.20— M W-4-20' 8113/15 107 FIC odor.Change at 20 feet bsg:trace amounts of clay. ML:Green to olive-gray,wet,stif,SILT;.faint HC _ -25 MW-4-25' 91101131 odor.Change at 25 feet bsg:trace mounts of clay. Screen interval from 15 to 35'bsg,0.020-inch slots. - 0CL:Brown to olive S Teen,wet,sti f LEAN CLAY; : MW-4-30' 6/1 1A 5 0.1 with silt,trace medium sand and micag,faint HC odor. ML:Brown to olive-gray,wet,stiff,SILT;with micas, abundant iron oxidation,do HC o ior. End cap at 35'. 3� MW-4.35' 7/8/11 0.0 r . 1