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(North) s v v v (South) <br /> Ao o go. A'. <br /> N O <br /> o a v a`a <br /> 3 a �' N til 3 3 til 3 Asphalt(4-6") <br /> i� 0 - f o ¢ 'Gas House ¢ /' — 0 <br /> C <br /> ao \ <br /> No / \ / Silty — <br /> IN <br /> // \?\ Clay �� —clay <br /> _ — NO <br /> 9 10 C ay6Y Sill // —1 ND <br /> -10 <br /> ND //� SAty SaOd/ Sand ( Clayey and Sandy S01 <br /> / �e — �-- ND <br /> 20 <br /> No _---_—_—. ND/ / y ----- <br />:1 m NO Silly Sand'' IN.025 —————— ———————— <br /> O —— Sand — ND — No <br /> bID lay y Slit <br /> I No _ ------ --_._ ND 30 <br /> Silty Send <br /> 3 o Np \ Silty ND <br /> S cla a Silvsil cla '� __ <br /> SD 40 ND '— 1/W.025 _ _ .� ....... \ Sandy Clay/Clayey Sand —'Sand——————No 40 <br /> \t ............Y Y.....`.:Y�....... .. / ND \55010.72 — ........ .. ....... .. ....._.. .. ND <br /> m -- —No <br /> $0 <i.QNfg6' Sdty Santl- 010.079 - — — ———— ND 50 <br /> ND - <br /> ----- _ saty<7.010.000------- ----------_— SandNp <br /> rND60 _ ----- <br /> SaM - 70.OB8 _ Sano Np �'-D= ------------- ND 60 <br /> ND -- NO ND <br /> 70 ND ———————— — Sand 70 <br /> _------ ---- TD=70.5' �� ND ND <br /> TD=75.� Silty clay Silty Clay \` ND——_,—— Sandy Clay ND <br />:1 ---- ___ �.- <br /> 80 ND saty Sand <br /> -------------ND . 80 <br /> TD�D'0' TD=79.5' <br /> TD=81.5' <br />:i 90 90 <br />.f2 <br />'yt Explanation <br /> 3 <br /> Approximate Monitoring Well Location <br /> Estimated Limits of Hydrocarbons in Soil(>100 mg/kg) <br /> Screened TPHg Total Petroleum Hydrocarbons as Gasoline _ _. . . <br /> Interval TPHII Total Petroleum Hydrocarbons as Diesel w 20 i f'V r1./'1!"1VA7 <br /> o <br /> TD=Total Depth B Benzene ®� CONSULTANTS,INC. <br />- ------- Approximate Lithologic Contact 1,2-DCA 1,2-Dichloroethane �/�3160 GOLD VALLEY Dn.-SUITE 800 n ANCHO CORDOVA,CA.05742 <br /> J! PHONE916052 911 a-FA%916852.9132 <br /> ...-..5........ Approximate Depth to Groundwater(10127I08) pgfl Micrograms per liter a <br /> 1 r 1 2 TPHg/B Concentrations in Groundwater(pg/I)(10/27/08) mg/kg Milligrams per kilogram o Stockton Yard Maintenance Station <br /> 2 8/,0.005•" TPHTPH�B Concentrations in GB Concentrations in oil rCundwa9er01109) ND Not Detected et <br /> i o 20 1604 South By Oa fornia CROSS-SECTION <br /> ltl ® g (pg/I)(04/19/10) 100• TPHg in soil(mg/I(g)(04/12/10-04/14/10) VERTICAL SCALE IN FEET San Joaquin Count <br /> OCON Pro•No.S9200-06-05A A Al— <br /> _ Estimated Limits of Hydrocarbons in Groundwater(>100 pg/I) 7 Boundary not determined GEI <br /> Source:AMEC Geomatrix,Inc.,September 2010 Task Order No.05 December 2010 Figure 3 <br />