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Monitoring well Mw4 <br /> Protect Chevrorn/Airport T Dwner f7xevron U S A Inc Drilling Log <br /> L.btatton ?400 Airport Way Stockton CA Pr^o)ect t4uffoer ?03 175 3318 <br /> .� Date Drilled 1/14/91- — Total Depth of Hole 65 0 It Diameter 8 25 to See Sate <br /> For Boring <br /> Location <br /> Surface Elevation Water Level Initial 51 0 It 24-hour 53 5 It <br /> Screen Dia 2 in Length 20 It Slot Size 0 020 in NOTES <br /> Casing Dia 2 rn Length 40 ft Type SCH 40 P�C s 1n in sample column inalcates <br /> l2/1? Hbnterey Sand that no sample was reta)nea <br /> Filter Pack Material try the sampler <br /> Drilling Company Sierra Pacific >a^illing Method WIlow Stem AuQer <br /> Driller Erin Fruenaul LDg py ,Craig Fboertson <br /> Geologist/Engineer Allen 8 Storm License No PG 4394 <br /> U) <br /> r. V 0 <br /> ^„ a E �, o c M .• Descriptlon <br /> r o cu CJ°: ►. Ca ^� n o (Color Texture, Structure) <br /> m 6 o <br /> L0j Ln m N <br /> 0 Brown clayey silt (medium stiff moist no hydrocarpon opor) <br /> 0 0 <br /> 2 <br /> 4 40 <br /> 0 0 <br /> 5 <br /> 8 O O <br /> 12 <br /> 72 <br /> 10 O A 15 <br /> 0 0 <br /> 12 <br /> NL <br /> 15 <br /> 14 17 <br /> 0 0 25 <br /> 15 <br /> :3 Zvi <br /> I le 0 0 <br /> 17 <br /> B Ao <br /> 20 <br /> 0 0 <br /> 22 <br /> • 15 <br /> 24 20 <br /> o o 25 <br /> 25 li <br /> Page 1 Df ,3 <br /> o2fa�f1� <br />