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GROUND ZERO ANALYSIS LOG OF WELL MW i <br /> PROJECT GRECERSON LOCATION 1717 S CENTER STREET, STOCKTON CA PROJECT NO 281 <br /> DATE DRILLED 07/14/99 LOGGED BY SEAN GARVEY REVIEWED BY GREG P STAHL RG No 5023 <br /> DRILLING COMPANY SPECTRUM EXPLORATION DRILLER DAVE —_— _ METHOD HOLLOW STEM AUGER <br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 35 El DEPTH TO WATER . INITIAL 23 FT STATIC 23 ^ FT <br /> CASING TYPE PVC F480 DIAMETER 2 IN SCHEDULE 40 INTERVAL 0 --FT- TO - t5 FT <br /> SCREEN TYPE PVC F480 DIAMETER 2 IN SLOT SIZE0�02 IN INTERVAL 15- FT- TO - 35 El <br /> FILTER PACK TYPE 13 SAND - — INTERVAL 13-- EL TO - 35 FT <br /> SURFACE SEAL TYPE NEAT CEMENT GROUT OVER BENTONITE INTERVAL D--- - TO --- 13 FT <br /> COMMENTS s PAGE 1 OF—!— <br /> WELL <br /> F!WELL DEPTH FED SAMPLE ID US C. DESCRIPTION <br /> 1 DETAIL FT PPM BLOWCOUHT LDG <br /> ORGANIC SOIL (OL/OH) DRK SRN. NPO, ORGANIC <br /> x <br /> 4 <br /> 86 -16/19 5' LEAN CLAY WITH SAND (CL)- 10-20% FN TO FN-M, A-SA, <br /> 0 9W GRDD SND, 80-90% FNS, M-H DRY STRNGTH, SLW DLTNCY, <br /> 6 14 M TGHNSS, M PLST, V STIFF, GRN, NPO, DRY TO MST <br /> CL <br /> 8 <br /> 10 5 <br /> 0 11 <br /> 18 <br /> 12 <br /> — 14 <br /> 0 3 <br /> 6 <br /> 16 14 <br /> 16/19 5—21/24 5' SILTY CLAY (CL/ML) 5% M—CRS SA W GRDD SND 95% <br /> FNS, M DRY STRNGTH, SLW OLTNCY, M TGHNSS, M PLST, STIFF, <br /> 18 13RH NPO UST <br /> _ MW1—20 <br /> 20 0 3 <br /> 5 CL/ML <br /> 10 <br /> 22 <br /> — 24 <br /> 21/24 5-36' POORLY GRADED SAND (SP) 100% FN A--SA PRLY GRDD <br /> SND, M DNS, BRN, NPO, WET <br /> 8 <br /> 26 D i 4 gED GEr}�0 <br /> — 28 Q7 -� <br /> GREGORY P. <br /> SP STAHL <br /> 30 6 No. 5023 <br /> 0 9 <br /> 16 vj <br /> — 32 TF `' C�L-'sC <br /> — _ t�F <br /> 34 <br /> b1W1-36' <br /> D 12 <br /> —3f;— 20 24 CL 36-36 5' LEAN CLAY (CL) 100% FNS, H DRY STRNGTH N-SLW <br /> bLTNCY, M-H TGHNSS M-H PLST HRD, CRY, NPO DRY- <br /> MST <br /> 38 <br /> 1 40 ' <br />