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Drilling Log <br /> ❑® GROUNDWATER Monitoring Well MW-4 <br /> ❑� TECHNOLOGY <br />• project Chevron - Tracy, Grant Line owner Chevron USA Products CampEU_,__ See Site Map <br /> 575 Grant Line Road, Tracy, CA 02070 0138 For 6orkV Location <br /> Location Prat. Na. <br /> Surface Elev. Total Hole Depth 215 tt Diameter 8 In COMMENTS <br /> Top of Casing Plater Level Initial 12 ft Static 660 ft <br /> Screen. Dia 2 in Length 15 ft Type/Size Sch 40 PVC/0 020 in <br /> Casing- Dia 2 in Length 5 ft Type SCh 40 PVC <br /> Fin material 03 Sand Rig/Core CMF-55 Downhole S dt S oon <br /> - brill Co. SES. Inc Method Hollow Stem Auger/PID <br /> Driller Tyke van Iandt Log By Brian McAloonDa{e 05/02/95 Permit # 005901 <br /> Checked By Ed Slmonrs License No R604422 <br /> 44 <br /> C D �, m <br /> , , C O 2 <br /> E t Description <br /> SZ <br /> 3E LLCL a V n �° N <br /> �. = ry (Color, Texture. Structure) <br /> U in W- bt Trace < IO%, Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> -2 <br /> Top soil over sandy silty CLAY (10,40,50) very dark gray, damp, <br /> hydrocarbon odor <br /> 2 30 CE_ <br /> Silty CLAY (50,50) gray, moist soft, hydrocarbon odor <br /> 4 <br /> 4 <br /> 6 = 140 MW-4 5 CL <br /> 60 X Static water, 05/02/95 <br /> 8 = Sandy silty CLAY (10,40,50) light brown, moist to wet, stiff, no <br /> hydrocarbon odor <br /> 10 a <br /> 10 <br /> 20 MW-4 12 CL <br /> 12 _ -115 �' Encountered water 05/02/95 (drdlers call) <br /> 14 — Sandy silty CLAY (20 40 40) brown dry to damp stiff, crumbly, no <br /> 14 hydrocarbon Odor <br /> Ise <br /> 16 — 5 MM-4 19 <br /> -t65 CL <br /> 18 _ <br /> — i <br /> IL <br /> I I Silty CLAY (10 90) with lenses of sandy clayey SIL T (15 40 45) <br /> 20 I damp ,0 moist n0 hydrocarbon odor <br /> 13 't<�� I <br /> 11 { <br /> MW-4 14 <br /> 22 i 3 -215 JJf Eno o' boring Ins-,ailed monit0'rng well <br /> i <br /> i ! <br /> I I <br /> 24j l <br /> 06129/1995 utniog-rra,93 Paoe 1 Of 1 <br />