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= Geological Audit Services, Inc. 90171NGL06 <br /> En vironmen/a/Professipna/s <br /> *� YorbaLiida•Slod" Cherven/McKibben 2 2 <br /> Field Geologist; Page Of <br /> ' Project Name: Yellow Submarine Drilling Co.: West Hazmat Date: 8-25-93 <br /> Project Number: 673-S Auger Type: 8' Boring I.D.: B18 <br /> Well Depth Sample Blow OV Group Soil Deeoription <br /> Deslgn Idenlilication Counts Reading Symbol <br /> ' ML Blue-gray clayey silt; minor blebs of oxidized grains; <br /> of blue or grayish-blue(may be remnant bedding) <br /> ' 25 B 18-25 730 <br /> ML <br /> M <br /> Oxidation mottling increases from 28 to 30 feet <br /> ! 30 -.1318-30 8 <br /> Oxidized thoroughly to 33 feet; <br /> Nodular caliche to 35.5 feet, disseminated caliche to bottom <br /> of core <br /> 35 .B 18-35 .. .. .77 ..... ..... <br />' Oxidation increases from 37 to 40 feet; red-brown at 39 to 40 <br /> feet; silty from 36 to 40 feet <br /> 3 <br /> . 40 B 1840 Bottom of boring <br /> 1 <br />