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_ �,_.- �. ���_ <br /> w yip. � —4 . '9F NA. �.y u ,•,,,; .. .. . f� � _ ,.s ...ow .;` R:,..x s,;,,X�✓s� <br /> ILI <br /> s <br /> ffis <br /> 5 <br /> Mr. Glenn R. Dembroff <br /> Ultramar Inc. <br /> April 9, 1991 <br /> page 3 <br /> TABU t <br /> Soil sample Analytical Results(Qpm) <br /> C nllectrd February 7 and B, 1991 <br /> Sample Ethyl- <br /> Depth(fact '1'nlucnc benzene Xvlenes <br /> Soil <br /> t rade lscnzrnc <br /> Barin Nn. <0,005 <1.0 <br /> <U.005 <0.005 co,005 <br /> NSW-14 M1tW-33.4i•15 45 3911 <br /> 35.9145 45 <0.005 <br /> 0,70 1.2 17 <br /> tv1W-35 Mw' <0.005 <0.005 <1.0 <br /> - 45 <0.005 <0.005 <br /> NIW-36 MW-36-9145 <br /> 'Total petroleum hydrocarbons as gasoline. <br /> Manic p Wells <br /> Ground water moniito:ing wells MW-34,MW-35,and MW.36 were installed in each corresponding soil <br /> boring <br /> in February 1991 (Figure 2). The 4-inch-diatneter wells were completed to a depth of <br /> approximately 60 feet below acsurface. <br /> urI he bogfor Screened monitoring weterval in ll MW 34ch well ewas Medends from from <br /> 45 to 60 Feet below the s <br /> l ing,used <br /> 70 feet below the surfaCas <br /> ce with bentonite chips, a reference <br /> d relat relative point,at the lop of each <br /> sea level. The monitoring well <br /> to measure the depth to ground water,was survey <br /> construction details are included in Enclosure D. <br /> ccted <br /> or laboratory <br /> les were <br /> Following completion,each well was decenpedrr t foo adCaliforniwater mccertifiied laboratory f and analyzed <br /> analysis. The ground water samples <br /> and Subm <br /> for the presence of TPH as gasoline <br /> around Water 1 eVcl Measurements MW-35, and <br /> The depth to ground water was measured in each monitoring well water was ed from <br /> , MW-34 <br /> MW-36) on February ,1991-well sTl'e depth und wrateraa el meas.iemen measured <br /> n Fbruryr1991 are <br /> point at the top of each <br /> compiled in"fable 2. <br /> dicated that ground water is pre''ent ai the site between 50 and 51 feet below <br /> The February Table <br /> data in <br /> gradient of approximately 0.003-foot per foot. <br /> the ground surface. Tltlinferred ground waier ion is toward the soutltewithtion a g contours illustrated on Figure 3 indicate the <br /> ground water flog di <br />