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1 <br /> Drilling Log <br /> ITIT CORPORATION Monitoring Well MW--5A <br /> A Member of the Ir Group <br /> Project 7-Eleven SS# 19976 Owner 7-Eleven, Inc See Site Map <br /> For Boring Location <br /> Location 1399 N Marn Street Manteca CA Prol No 779956 <br /> Surface Elev 32 i8 ft Total Hale Depth 50 ft Diameter 8 in COMMENTS <br /> 1 Top of Casing 3148 ft Water Level Initial 20 ft Static 2122 ft <br /> Screen Dia 2 +n Length 5 ft Type/Size Sch 40 PVC 0 020 in <br /> Casing Dia 2 in Length 45 ft Type Sch 40 PVC <br />' Fill Material #3 Sand/Neat Cement Rig/Core M-11155/Spirt Spoon <br /> Drill Co Greq.q Drilling Method Hollow Stem Au er <br /> Driller Chris St Pierre Log By Bob Butler Date 05/11/99 Permit # 016655 <br /> Checked By Ed Smonrs License No California R0114422 <br /> r _0 C y <br /> ° "' ` � ° Description <br /> �. —� O� N o o �� U <br /> CL Q- a a E m� rn (Color, Texture, Structure) <br /> r o 0 0 °` CD U <br /> 0 N m j Trace < 10%, Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> -2 <br /> 1 <br /> Q asP 2 of Asphalt over base coarse sandy gravel <br /> < Op ow <br /> t 2 < < Fine to medium SAND brown dry loose moist subrounded, no <br /> < < hydrocarbon odor <br /> 4 < <br /> 5 MW-5A@5 8 <br /> < < 8 5W <br /> 10 <br /> 6r ` <br /> .r <br /> 1 8 r < <br /> 2 MW-5A@10 8 <br /> 10 < < Io ML <br /> Very fine SAND and SILT (40 60) olive gray moist to wet soft, no <br /> < < hydrocarbon odor <br /> < < <br /> 12 <br /> r " <br /> < < <br /> 14 < < 0 MW-5A@15 7 <br /> ' S CL <br /> 16 Silty CLAY (30 70) olive gray and reddish brown moist to wet <br /> < < soft semi-plastic no hydrocarbon odor <br /> 16 < < <br /> r < <br /> 18 < < <br /> < < 15 MW-5A@20 3 <br /> 20 < < I5 Q Clayey sandy SILT (20 30 501 gieenish gray saturated no <br /> hydrocarbon odor <br /> < < ML T <br /> 22 < < <br /> r _ 24 — 3 M14-5025 5 ML <br /> 07/22/1319 hthlog—Mar gg Page I of <br />