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n K <br /> GROUND ZERO ANALYSIS LOG OF WELL _MW5_ <br /> ROJECT BARNYARD CORP LOCATION .. B950 W WALNUT GROVE RD, THORTON, CA PROJECT NO 444 <br /> GDATE <br /> DRILLED 10/31/02 LOGGED BY SEAN GARVEY REVIEWED BY , JOHN LANE. RG 6795 <br /> DRILLING COMPANY V do W DRILLING DRILLER AMADOR ARROYO <br /> METHOD HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED __19 FT DEPTH TO WATER INITIAL 7.5 FT STATIC 62 FT <br /> CASING TYPE _ PVC DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 FT TO 4 FT <br /> SCREEN TYPE pyC DIAMETER 2 IN SLOT SIZE 0 010 fN INTERVAL 4 FT TO 19 FT <br /> FILTER PACK TYPE 2/12 SAND _ INTERVAL 2.5 FT TO 19 FT <br /> SURFACE SEAL TYPE CONCRETE OVER HYDRATED BENTONITE PELLETS INTERVAL 0 ..__ FT TO 2 5 FT <br /> COMMENTS PID BACKGROUND 0 4 PPM <br /> PAGE 1 OF__L_ <br /> WELL DEPTH PID SAMPLE ID U S C DESCRIPTION <br /> DETAIL FT PM) BLOWCOUNT LOG <br /> j - <br /> 0-55/9 SILTY CLAY (CL/ML) 5-10% FN, A, POOR GRD SND, 90-95% FNS, <br /> M-H DRY STR, SLW DLTCY, M TGHNESS, M PLAST, STIFF, BRN, <br /> 2 NPO, DRY <br /> 4 BYMW5-5 CL/ML <br /> 5 <br /> 2 3 t 1 5 5/9-10 5/14 SILTY CLAY W/ SAND (CL/ML) 10-20% FN, A, POOR GRD SND, <br /> 6 Q 80-90% FNS, M-H DRY STR, SLW DLTCY, M TGHNESS, M PLAST, <br /> / <br /> Z V STIFF, BRN, NPO, MST-WET <br /> / <br /> 8 / <br /> 12 <br /> 10 CL/ML <br /> 0 4 22 <br /> 10 5/14-15 5/19 SILT W/ SAND (ML) 20-30% FN-M, A-SA, POOR GRAD SND, 70- <br /> 80% FNS, N DRY STR, R DLTCY, L TGHNESS, N PLAST, V STIFF, BRN, <br /> 12 NPO, WET <br /> _14- <br /> 0 <br /> 4 0 2ML <br /> 12 <br /> 16 15 5/19-20 5 POORLY GRADED SAND (SP) >95% FN, A, P GRAD SND, <50% FNS, <br /> LOOSE-M DENSE, BRN, NPO, WET <br /> 18 <br /> BYMW5-20 <br /> SP <br /> 2D 0 1 10 <br /> 22- <br /> -24- <br /> -26— <br /> 26 ��ED GEQ O <br /> C � <br /> 28 Q J0'^d P <br /> Lr�4c <br /> 30 T 6 795 <br /> 32- <br /> - <br /> 2 O ,F <br /> 34- <br /> -36- <br /> -38 38 <br /> 40 <br />