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' GROUND ZERO ANALYSIS LOG OF BORING DB-1 <br /> . PROJECT KNOWLES HAMMER LOCATION 1140 WEST HAMMER LANE, STOCKTQN CA PROJECT NO 95-013 <br /> DATE DRILLED 06/29/98 LOGGED BY JEANNE SUCKT14AL REVIEWED BY JOHN P LANE REG No 6795 <br /> DRILLING COMPANY FISCH ENVIRONMENTAL DRILLERAj E FISCH/RI__CK BERTOLINO METHOD DIRECT EV511 <br /> BORE HOLE DIAMETER 2 IN DEPTH DRILLED _ 54 FT DEPTH TO WATER INITIAL NM F7 STATIC -Nm- FT <br /> CASING TYPE NA DIAMETER IN SCHEDULE INTERVAL FT TO FT <br />' SCREEN TYPE NA DIAMETER IN SLOT SIZE IN INTERVAL FT TO FT <br /> FILTER PACK TYPE NA INTERVAL FT TO FT <br /> SURFACE SEAL TYPE NEAT CEMENT INTERVAL 0 FT TO 54 FT <br /> COMMENTS PACE I OF—Z_ <br />' WELL DEPTH FID SAMPLE ID U 5 C DESCRIPTION <br /> DETAIL FT PPM GLOWCOUNT LOG <br /> 2 0-205 LEAN CLAY (CL) <5% FN SND <1% FN GRVL >957 FNS <br /> N-SLW DLTNCY M TGHNSS L PLST DRK BRN V SL PO 0 20 DRY <br /> (NATIVE BACKFILL) <br /> 4 <br />' 6 <br /> CL <br /> 10 0 <br /> (Naflro fill) <br /> 12 <br />'. 14 <br /> —16- <br /> 20 <br /> 620 <br /> 20 5-30 5 POORLY GRADED GRAVEL (GP) <57 FN SND >907 FN A- <br />' R PRLY GRDO GRVL <5: FNS LT CRY NPO DRY <br /> 22 (NATIVE BACKFILL) <br /> —24- <br /> -26- <br /> 426 (Nc+G•nu) <br />' 28 <br /> 30 <br /> 8305-31/34 POORLY GRADED SAND (SP) >957. FN PRLY GRpD SND <5: FNS <br /> SP GRY $L-M PO DRY <br /> (NATIVE BACKFILL) <br /> 32 <br />' 31/34-46/? SILT (ML) <57 FN SND >957 FNS SLW OLTNCY L TGHNSS <br /> 34 S-OBS-355 N-L PLST 111111M-SIRNG PO DRY TO MST MST BEGINNING --44 <br /> • <br />' 36 10 000+ <br /> ML <br /> 38 <br />' 40 <br />