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GROUNDWATER <br />TECHNOLOGY <br />Monitoring Well MW-2 <br />Drilling Log <br />Project Chevron - Tracy, Grant Line <br />Owner <br />Location 575 Grant Line Road, Tracy, CA <br />Surface Elev Total Hole Depth 215 11 <br />Chevron USA Products Company <br />proi. No 02070 0138 <br />Diameter 8 in <br />See Site Map <br />For Boring Location <br />COMMENTS <br />Top of Casing Water Level Initial 12 ft Static 688 ft <br />Screen' Dia 2 la Length 15 ft <br /> <br />Type/Size Son 40 PVC/0 020 in <br /> <br />Casing Dia 21n <br />FM Material #3 Sand <br />Drill Co SES, Inc <br />Length 5 ft Type SCh 40 PVC <br />Rig/Core CME-55 Downhole/Spilt Spoon <br />Method Hollow Stem Auger/PIC <br />Tyke Van Zandt Log By Brian McAloon Da t e 05/02/95 Driller permit 005901 <br />Checked By Ed &monis <br /> <br />R0#4422 License No <br /> <br />- 0 — <br />- 2 - <br />p- 4 <br />6 - <br />8 -- <br />10 - <br />12 - <br />14 - <br />0 <br />11 s <br />w <br />Ca <br />do Blow Count/ Description <br />(Color, Texture, Structure) <br />Trace < 30%. Little 10X to 20%, Some 20% to 35%. And 35% to 50% <br />Top soil over gravelly silty CLAY (5,45,50) black, damp, <br />hydrocarbon odor <br />Sandy silty CLAY (10,30,60) brown, grading to silty CLAY (30,70) <br />gray, dry to damp, soft, plastic, hydrocarbon odor <br />Static Water, 05/02/95 <br />Sandy silty CLAY (10 20 70) light brown with light gray root Casts <br />damp to moist stiff slight hydrocarbon odor <br />Encountered Water, 05/02/95 (drillers call) <br />(grades Cumbly no hydrocarbon odor) <br />- -2- <br />MV4-2 <br />-5 5 tt Recovery a <br />a0 <br />41 <br />7 <br />10 <br />04W-2 15 <br />-15 5 <br />18 - <br />20 - 7.1 <br />22 215 <br />24 <br />SI v CLAY (25 75) brown moist to wet stilt slight hydrocarbon <br />0001 <br />EnC 01 boring Inst ailed monitorino well <br />/La <br />200 <br />80 <br />6 <br />5 <br />70 <br />14 <br />06 / 28 /1885 ht r1109 - 93 <br /> <br />P age ol <br />