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GROUND ZERO ANALYSIS LOG OF BORING SB2/WELL MW2 PROJECT NORMAC LOCATION 6215 TAM O'9HANTER DR— STOCKTON CA PROJECT N0. 95-009 DATE DRILLED 144/95 LOGGED BY JEANNE BUCKTHAL REVIEWED BY GREG P. STAHL RQ No. 5023 +� DRILLING COMPANY V&W DRILLING DRILLER LARRY METHOD HOLLOW STEM AUGER )RE HOLE DIAMETER B IN DEPTH DRILLED ea FT DEPTH TO WATER INITIAL 68 FT STATIC 62,4 FT "CASING TYPE PVC P480 DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 FT TO 60 FT SCREEN TYPE PVC F480 DIAMETER 2 IN SLOT SIZE 0.02 IN INTERVAL 60 FT TO 80 FT ++ FILTER PACK TYPE #3 SILICA 5AUD INTERVAL 58 FT TO Do_.-....FT SURFACE SEAL TYPE Nr6T CEMENT OVER RENTONITE INTERVAL 0 FT TO 58 FT COMMENTS: PAGE I OF 2 WELL DEPTH PID SAMPLE ID U.S.C. DESCRIPTION DETAIL FT. PPM BLOWCGUNT LOG 0-4" ASPHALT 4'-16.5/20' ELASTIC SILT; <57. FN SND; >95% FNS: SLW DLTNCY; a.. 2 M TGHNSS; L—M PLST: V STIFF TO HRD; GRY BRN; NPO; MST; HOMO; IRON OXIDE; MOTTLING 4 V 9 6 3.7 16 22 �.. MH B 10 10 4.5 12 16 12 14 8 162 t2 14 16.5/20--26.5/30' ELASTIC SILT; <5% FN SND; >95% FNS; N—SLW DLTNCY T 1 S NPOG MST;: HOMO PLST: STIFF TO V STIFF: DIRK GRY; 20 6 l0 12 22 24 MH 4 7 �.. 26 6.2 8 26.5/30-31.5/35' POORLY GRADED SAND; >95% FN, PRLY GRDD SND: DNS: <5% 28 FNS; DIRK GRY; NPO; MST; WEAK CEMENTATION; HOMO a.. 30 6 8.D 15 SP 16 ++ 32 31.5/35-36/40' WELL GRADED SAND WITH GRAVEL; 80% FN—CRS, SA—SR, W GRDD SND; 207. FN, SA—SR, W GRDD GRVL; V DNS; <5% FNS; ORNG BRN; NPO; MST; WEAK CEMENTATION; HOMO 34 � L` S—MW2-35.5' 5.3 26 36 50-6° 36/40-41/45- WELL GRADED GRAVEL WITH SAND; 40% FN—CRS, SR—R, W GRDO SND; 55-60% FN—CRS, SR—R, W GRDD GRVL; V ONS; <5% FNS; BRN; NPO; MST; WEAK CEMENTATION; HOMO; 38 GRAVELS >2 INCH DIAMETER SWVGW i" 40