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SECOR Logged Bfir Dates Drilled. priding Gmt =tcr Project Name: Methodlaopfw= 2/5/01 CASCADE CHEVRON 95775 CONTINUOUS CORE CM 2!7101 DRILLING LODI, CA DIRECT PUSH See "Ogen d to Logs" for $arcing 5lttfacc Groundwater Depth (ft): Tot1d Drive Depth (ft.): wtgbs.): method, Diam (uw}: Eiev.(ft}: 57 FIRST =sampling1 �� 1ebmtary g 140.0 NA Well Description Construction & 135 145 WCA Number: MW -20B SILTY SAND (SM): yellowisn grown t to r ivr4 j, wun L;=Y, ILLMr&.an.a+ 4�"-, u - moist to wet (0,70,20, 10). SANDY SILT (ML): light olive brown (2.SY5/4), with trace clay, low plasticity, very stiff, moist, weak subangular blocky soil structure (0,35,60,5). CLAYEY SILT (ML): light olive brown (2.5Y5/4), fine-grained sand, moist, wet along factures, weakly cemented,.angular blocky soil structure. Grades to sandy silt, moist. SILTY SAND (SW -dark yellowish brown (10YR4/4), with trace clay, fine-grained sand, very dense, moist to wet, cemented, angular blocky soil structum (0,60,35,5). SILTY SAND (ML): brown (10YR5/3), fine-grained sand, low plasticity, very stiff, Driller reports refusal at 137.5 feet, bottom of boring 137.5. NA 0 0 0 The substrata descriptions above are generalized representations and based upon visuaYrnanual classification of cuttings and/or samples obtained during drilling. Predominant material types shown on the log may contain different materials and the change from one predominant material type to another could be different than indicated Descriptions on this log apply only at the specific location at the time of drilling and may not be representative of subsurface conditions at other locations or tithes. PiojectNo. 077.43451.250 Date 3/21/01 Lag of Well 95775B4.GPI Approved by LOC} OF BOREHOLE figure (sheet 6 of 6)