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FORMER UNDERGROUND STORAGE TANKS <br /> y T1 10pOD CALLON REGULAR UNLEADED GASOLINE TANK <br /> T2 4000 GALLON REGULAR UNLEADED GASOLINE TANK <br /> T3 B WO GALLON REGULAR UNLEADED GASOLINE TANK <br /> /y T4 8400 GALLON REGULAR UNLEADED GASOLNE TANK <br /> /y T5 8 WD GALLON SUPER UNLEADED GASOLINE TANK <br /> • /y <br /> / CURRENT UNDERGROUND STORAGETANKS <br /> y T8 10000 GALLON GASOLNEYANK <br /> / <br /> 77 0 DOD GALLON GASOLINE TANK <br /> + TB 6000 GALLON GASOLINE TANK <br /> TO 8000 G4LLON GASOLNETANK <br /> SEPTIC TANK <br /> LEACHING AREA <br /> (DRY) a <br /> VW 11 VWS • <br /> (DRY) Q +,T4' (258 <br /> i� VW 10 T2 Df <br /> (DRY) `+T3•� ' <br /> / <br /> T6 <br /> STATION v�/T7 /^ <br /> BOLDING V (239 VW <br /> "/�iT8 /,� 'W-6 <br /> (250`�)~ //Ta (260 ga)" <br /> / <br /> jy 238 (OR <br /> �y <br /> VWF 12 ®(234 5M <br /> (2518M" VW`=.ice► ® MW-9 <br /> VWil4-(� <br /> C/ �6 eVW-8 MWS <br /> (DRY) (DRY) ® \ <br /> (DRY) //' MW5 \\ <br /> VW-7 O VW 14 79� / > <br /> �G Q (DRY) VW 16 <br /> (DRY) (.'I—, / <br /> MW-6 VW 15 / <br /> 730 <br /> • ®MW7 /// MW 15 MW 11 <br /> ,/(D� 0�0103ftlR ,/ MW 1 <br /> / V -13 228—// /(DRY) <br /> W <br /> (DRY) <br /> WATER SUPPLY /// (22804 / O VW-17 <br /> WELL <br /> ////MW3�MW2 pp <br /> 0�� <br /> mw <br /> / 5 <br /> (DRY) <br /> A MW 10 + VW 18 <br /> MW 13 F/ <br /> / (223 42) /+ <br /> + <br /> �QP / ®MW 12 <br /> (DRY) � (DRY) <br /> VW 20 wwle <br /> Ira <br /> LEGEND / <br /> ®MW 1 MONITORING WELL LOCATION(SCREENED IN SAND ZONE 2) <br /> ®MW 2 MONITORING WELL LOCATION(SCREENED IN SANDZONE 1) <br /> Q VW 1 VAPOR EXTRACTION WELL LOCATION <br /> E]VW15 ABANDONED WELL LOCATION <br /> WATER SUPPLY WELL <br /> (228 02) GROUNDWATER ELEVATION IN FEET ABOVE MEAN SEA LEVEL <br /> —234+ WATER TABLE CONTOUR IN FEET ABOVE MEAN SFA LEVEL 0 5OFT <br /> i INFERRED DIRECTION OF GROUNDWATER MOVEMENT <br /> °C WELLS MEASURED ON 311405 <br /> NOT USED FOR CONTOURING SCALE <br /> ARCO SERVICE STATION NO 6100 FIGURE <br /> 25775 SOUTH PATTERSON PASS ROAD <br /> $ ENVIRONMENTAL,INC TRACY, CALiFORNfA <br /> GROUNDWATER ELEVATION CONTOUR MAP <br /> UPPER WATER BEARING ZONE PROJECT NO <br /> 1st QUARTER 2005 U6100 <br />