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Drilling Log <br /> GROUNDWATER Monitoring well MW-4 <br /> a Prr --I'1LJ TECHNOLOGY <br /> ' Proiect Cnevron - Stadion Owner Chevron VS.A. Products Co. See Site Map <br /> For Boring Location <br /> Location 32,1E-East Tremont Street Project No. 0207C 3865 Date drilled 06/03/93 <br /> Surface Elev. Total Hole Depth 65.5 ff. Diameter 8 In- COMMENTS: <br /> Top of Casing Water Level Initial 745 ft Static <br /> iii Screen: Dia 2 in. Length 25 ft. Type/Size 0.020 in. <br /> Casing: Dia 2 in. Length 60 N. Type Sc.ae4. 40 PVC <br /> ' Filter Pack Material 2/12 0Dis lustre Rig/Core Type So& spoon <br /> Drilling Company Kvifhauo Method Mallow stem auger Permit +« <br /> Driller Rod Furrow Log gy Karl Bowers <br /> ' Checked By Fd S1monis License No.RG ,1422 DSB <br /> _ onID <br /> Description <br /> � CJ GTE apCL Up s0 Ei <br /> a` <br /> CL 0 <br /> E E� a T� <br /> p" E <br /> E x�' 4 u) (Color, Texture, Structure) <br /> U Ln Ex v) Trace < 10%, Little 10% to 20%. Some 20% to 35%, And 35% to 50X <br /> —2 <br /> ' 0 Unpaved grade <br /> Dark brown sandy CLAY (70% clay, 15% fine to medium sand, <br /> 2 10% coarse sand, 5% fine sand, slightly moist, hard, very <br /> ` < < plastic <br /> 4 ` ` MW14-5 <br /> ' Iz <br /> (Grades 60% clay, 15% fine to medium sand, 10% coarse sand, <br /> 6 2 zi �� 15%, fine gravel) <br /> < { Mw�-t0 (Grades silty CLAY (80% clay, 20% Silt) <br /> ' 12 <br /> 10 ` c 12 <br /> < < 15 Poorly graced SANG with GRAVEL 180% fine to medium sand, 10% <br /> sP <br /> 12 <br /> coarse sand, 106% fine gravel, trace clay, siighty moist) <br /> Olive gray SILT (1001% silt, trace coarse sand, slightly moist) <br /> ' 14 `r 11` 1Mw4-15 <br /> 70 5 <br /> 16 < < { e <br /> 1B � <br /> IMwz-20 <br /> 20 ` < 10 i 35 <br /> J { < SD <br /> Ir rOranoe-brown, poorly graoeo SAND with SILT (90% line to medium <br /> F , Ic c <br /> 22 � 1 c� sanC, i0:o 511t, 5hg'ltly moist) <br /> 24 p I i <br />