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co <br />c <br />w <br />g� <br />0I <br />NN <br />O <br />r <br />Ih---- <br />co <br />w <br />w <br />HARDING WAY <br />RAPD f <br />1814 �-� <br />SPERRY AVPNUE <br />MW i <br />1524 ao0wo S"8r-� <br />REFERENCE TOSCO SITE IS BASED ON ON A'SITE <br />PLAN' PROVIDED BY IT CORPORATION, <br />AND IS INTENDED FOR ILLUSTRATION <br />ONLY ARCO WELLS SURVEYED BY <br />MORROW SURVEYING <br />DAAWN <br />SECOR Al" <br />Intera7.aftonacl DATE <br />Incorporated IJOBNO <br />PR <br />CH <br />04APR2002 <br />77BP 54932 00 <br />LEGEND <br />Q DEEP GROUNDWATER MONITORING <br />WELL <br />GROUNDWATER EXTRACTION WELL <br />SHALLOW GROUNDWATER MONITORING <br />WELL LOCATION <br />A SOIL VAPOR EXTRACTION WELL <br />• SOIL BORING <br />— I AREA OF OVER -EXCAVATION DURING 1999 <br />-... UPGRADE ACTIVITIES <br />o POWER POLE <br />orre OVERHEAD POWER LINES <br />awwr�xraaoz APPROXIMATE GROUNDWATER FLOW <br />DIRECTION AND GRADIENT FT/FT <br />76 40--o' GROUNDWATER ELEVATION CONTOUR <br />(FEET ABOVE MEAN SEA LEVEL) <br />(1649) GROUNDWATER ELEVATION <br />(FEET ABOVE MEAN SEA LEVEL) <br />(N" NOT MEASURED <br />N <br />0 60 120 <br />APPROXIMATE SCALE FEET <br />FIGURE 10 <br />ARCO SERVICE STATION #4932 <br />16 EAST HARDING WAY <br />STOCKFON CALIFORNIA <br />GROUNDWATER ELEVATION CONTOUR MAP <br />BEFORE BATCH EXTRACTION - MAY 13, 2002 <br />