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.t. _.ti _,.,.•:: -a �'S. �bw ��.e�Y.., g __ 3.,,,. r _5_.....,.. .ez-. -^wr;- �_..,..S r' f "X <br /> I! <br /> 90 <br /> 1. I aRoDt.ICnaN I <br /> 1.2 Location and slte sating 1 <br /> 1.3 Local hydragtology and watcr use 2. <br /> 2. FIELD INVESTIGATIONS 3 <br /> 2.1 IYcvious invexdgadons 3 <br /> 2.2 Installation of rmnitor#n µ-chs 4 <br /> 2.3 Sampling and analysis of soils 5 <br /> 2.4 Saimp6ng and artalpis of grovrk6 water b <br /> 2.5 Gauging the d:pM to g=nd wAtcr 6 <br /> 2.6 UrAcrgtnund storage basks 7 <br /> HEM <br /> 3. DISCUSSION CF RESULTS 4 <br /> 3.1 Analytical trsults 9 <br /> 3.2 11)%hgcological results 9 <br /> 3.3 Conclusiom 10 <br /> 4. P.EFERENCES II <br /> TABLE 1 PRIVATE AND MUNICIPAL WELLS%%TnM4 THE <br /> VICLNITY OF FORMER 01EVRON SS 9-1918,STOCKTON. <br /> CALIFORNIA 13 <br /> TABLE.2 CONCENTRATIONS OF PETROLEUM HYDROCARBCN <br /> CONSTITUE=IN SOIL VAPOR AT CITEVRON SERVICE STATION <br /> 9-1418.EL DORADO AND HARDING,STOCKTON,CALIFORNIA. <br /> NOVEMBER 1S$7 14 <br /> TABLE 3 CONCENTRATIONS OF PEIROLEUM HYDROCARBONS(MG/KG)TN <br /> THE SOILS AT FORMER CHEVRON SS 9-1418.45 E.HARDD G WAY <br /> STOCKTON.CALIFORNIA 15 <br /> TABL.E4 CONCRnRAMONS OF PETROLEUM HYDROCARBONS(MGAlTER) <br /> IN THE GROUND W.NTER AT FORMER CHEVRON SS 9-1918.45 E. <br /> HARDING WAY.STOCKTON.CALIFORNIA 15 <br /> ---------TABLE 5___ pEP114S_TO GROUNDN�_k ER AND- HE ELEVATIONS OF TEE TOP ------ ----- ----- --- ---- - <br /> OF GROUND WATER A1'FOIRMER CHEVRON SS 9.1418. <br /> STOCKTON.CALIFORNIA 17 <br /> TAB LE b RATIOS OF BENZENE TO TOLUENE AND S DWM TO XYLEM <br /> BASED ON CONCENTRATIONS OF PETROLEUM HYDROCARBONS <br /> IN THE GROUND WATER AT FORMER CHEVRON SS 9.1918, <br /> STOCKTON.CALIFORNIA 18 <br />