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<br /> GROUND ZERO ANALYSIS LOG OF WELL Mw7
<br /> PROJECT TUFF BOY LOCATION 5151 ALMONDWOOD DRIVE MANTECA CA PROJECT NO 335
<br /> DATE DRILLED 1/14/04 LOGGED BY REVIEWED BY
<br /> DRILLING COMPANY FISCH ENVIRONMENTAL DRILLER RICK BERTILLINO METHOD DIRECT PUSH
<br /> BORE HOLE DIAMETER 8 IN DEPTH DRILLED 19 FT DEPTH TO WATER INITIAL 8 _ T STATIC 6.6 FT
<br /> CASING TYPE PVC DIAMETER _ 3/4 IN SCHEDULE 40 INTERVAL 0 FT TO 4 FT
<br /> SCREEN TYPE pvc DIAMETER 3/4 IN SLOT SIZE 0.010 1N INTERVAL 4 FT TO 19_ FT
<br /> FILTER PACK TYPE 2/12 INTERVAL 2.5 FT TO 19 FT
<br /> SURFACE SEAL TYPE NEAT CEMENT OVER BENTONITE INTERVAL 0 FT TO 25 FT
<br /> COMMENTS PRE-PACK WELL SCREEN 2 5/8" ANNULAR SEAL, CONTINUOUS CORE SAMPLING PAGE _I OFA
<br /> WELL DEPTH FID SAMPLE ID U S C DESCRIPTION
<br /> DETAIL FT PPM BLOWCOUNT LOG
<br /> 0-8' WELL GRADED SAND W/ CLAY (SW-SM), 85-90X FN-CRS, A-SR, W
<br /> GRDD SND, 10-15% FNS, BRN, N-SL ODOR, MST-WET
<br /> 2 35
<br /> SLIGHT PRODUCT ODOR 4-8 FEET
<br /> 4
<br /> SW-SC
<br /> 6 250 TBMW7-
<br /> B
<br /> W-10' CLAYEY S ND (SC), 80-85% FN-CRS, A-SR, W GRDD SND, 15-20%
<br /> TBMW7-10 Sc FNS, BRN9GRY, M ODOR, WET
<br /> 10 448 SW 10'-11' WELL GRADED SAND (SW), >95% FN-CRS, A-SR, W GRDD SND, <5%
<br /> FNS, BRN/GRY, M ODOR, WET
<br /> ML 11'-12' SILT (ML), <5% FN, A. SND, >95% FNS, N DRY STRGTH R DLTNCY,
<br /> 12 L TGHNESS, N PLAST, GRY, M ODOR, WET
<br /> 12'-16' LEAN CLAY (CL), <5% FN, A, SND, >95X FNS, M-H DRY STRGTH N-
<br /> SLW DLTNCY, M-H TGHNESS, M-H PLAST, BRN, N-SL ODOR, MST
<br /> 14 21 TBMW7-1 CL
<br /> 16
<br /> SW 16'-17 WELL GRADED SAND (SW), >95X FN-CRS, A-SR, W GRDD SNL), <5%
<br /> 10 FNS, BRN, NO ODOR, MST
<br /> SP 17'-18 9' POORLY GRADED SAND (SP), >95% F. A-SA, P GRDD SNO <5% FNS,
<br /> 18
<br /> TBMW7-lY BRN, NO ODOR, MST
<br /> CL 189,-Ig, LEAN CLAY (CL), <5% FN, A. SND, >959 FNS, BRN, NO ODOR
<br /> —20-
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<br /> 24-
<br /> -26
<br /> D222426
<br /> 28
<br /> 30-
<br /> 32-
<br /> -34-
<br /> 36-
<br /> -38
<br /> 032343638
<br /> AA
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