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The San Joaquin Company Inc. Monitoring Well Log <br /> WELL No.:=MW-3AProject: Former Fueling Station Project No.: 9902.016 <br /> WELL KNo.: <br /> it %4.0 Owner: Carl B.Navarra Location: 7500 W.Eleventh Street,Tracy, California <br /> z. To of Casing Elevation: 47.42 <br /> Top 9 ft. Surface Elevation: 4887 ft. Depth to Water: 9.10 ft. <br /> Date Installed: 03/26/02 Total depth of Boring: 35.5 ft. Boring Diameter: 8 in. <br /> Well Casing Diameter: 2 in. Total depth of Well: 35.5 ft. Casing Material: PVC <br /> Drilling Company: Spectrum Exploration Inc. Drilling Method: Open Stem Auger <br /> V <br /> Driller: Dave Gonzalez Logged By: Dai Watkins <br /> NOTE:Uniform Soil Classifications are from field observations only without data from laboratory. <br /> Depth Sam le Graphic <br /> Feet p LogDescription Well Construction <br /> Heavy-duty steel wellhead box with bolted cover <br /> + 0 1.5-inches Bituminous Macadam paving and OO ring seat <br /> :...,;■:, Slight odor of fuel hydrocarbons Lockable water-tight cap <br /> 2 ".:F:�:! Sand,Silt and GRAVEL(GP)-fill a == :: <br /> �:■'■:■'■ Concrete <br /> ;:.GP,:, <br /> 4 ■:■:■;■.■ Slight odor of fuel hydrocarbons <br /> L MW3A <br /> 5.5 Stiff,dark re SiltyCLAY CL medium Type-II Portland cement rout <br /> 6 CL soft,No odor <br /> ( } Yp g <br /> Medium stiff to stiff,light grey <br /> r�•r.I Silty CLAY(CL)-mottling indicative of <br /> 8 CL bioremediated fuel hydrocarbons <br /> t 04/11/02 <br /> 10 <br /> Slight odor of fuel hydrocarbons <br /> .ti <br /> MW3A <br /> ' 12 <br /> •f�fti <br /> •rtir�r~ Medium grey Silty SAND(SP)-loose, <br /> •ti•� r very wet <br /> 14 .s:SP1. <br /> f`r`f•r Very sli <br /> • .tir r�r f ghtodoroffuelhydrocarbons <br /> MW3A <br /> L9 <br /> 16 15 Medium stiff,light brown Silty CLAY(CL) <br /> CL <br /> 18 Very slight odor of fuel hydrocarbons <br /> 20 ;ti•ti <br /> •;�sr�•MW3A Medium grey Silty SAND(SP)-loose <br /> }SP r No odor <br /> �.. 22 21.5 <br /> Partial <br /> Core Medium stiff,light brown Silty CLAY(CL) <br /> 24 Recovery CL No odor <br /> JIM MW3A <br /> 26 25 •~ Bentonite seal <br /> -S•S•S•ti <br /> 28 f.f.�. <br /> .:1:Jti f Lighf brown,Silty Fine SAND(SP)-vary <br /> •S•S•S•S. loose,Wet <br /> — SP, No No odor <br /> t-r•r•1 <br /> •r,r f:r No.2/16 Monterey sand filter pack <br /> 30 •Srt�4 Sf <br /> V <br /> Page 1 of 2 <br /> L <br />