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TPNg <50 <br /> B <0 50 <br /> MTBE 46 <br /> 124)CA 098 MW8 <br /> TBA <20 <br /> ORCHARD <br /> MW-6 <br /> TPNg <50 <br /> 8 <0 50 <br /> DIRTIGRASS MTBE <0 50 <br /> f 2 DCA <0 50 <br /> SBA <20 MW-5 <br /> TPNg <5D <br /> 8 <050 <br /> MTBE 12 <br /> 1,2 DC4 0 57 <br /> TSA <20 <br /> HAMMER LANE <br /> TPHg <50 <br /> B <050 <br /> AME 60 <br /> 1,2-DCA 22 <br /> TBA <20 OR,VE ORiVE <br /> MW-2 <br /> (DRYJ o <br /> •PSB-2 CD CD f B-1 <br /> e H9 a50 DMW-1 IS>�DS 0 <br /> LOCATION OF WELL HEAD MtBE 84 i�j AC <br /> TREATMENT SYSTEM 1� 2DMW-3 <br /> 00 PAVING B 2 PAVING <br /> STATION <br /> DW-1 . MW-7 MW-4 ; BUILDING <br /> MW-9 - — -- UST MW-1 <br /> (� <br /> TPHg [50 Q v COMPLEX <br /> <0 50 <br /> Y 2DCA B <a5fPUMP <br /> ) TPNQ <100 Q ISLANDS <br /> TBA <M B <10 C? <br /> MtBE 76 <br /> 1,2-DCA 15 � •B� � TPNg 1500 <br /> TBA <40 � ` 4 B 8z <br /> PAVED *DMW-2 <br /> AREA aPHQ <0050 MW-3 �8A <i00 <br /> MtBE 98 PSB-1• AC AC <br /> PAVING PAVING <br /> f2DCA 13 <br /> 1`BA <20 <br /> , " j <br /> TPNg <50 WATER <br /> � <br /> WIENERSCHNI7L B <050 WELL TPN 140 <br /> MTBE �� 8 g <O50 ORCHARD <br /> <050 <br /> 1,2 DCa <0 50 MtBE 37 <br /> 7BA <20 1 2-DCA 100 <br /> TBA <20 _ <br /> I <br /> i <br /> AUTO FACTORY ZIA <br /> DW-2 <br /> TPHg <50 <br /> B <0 50 <br /> MTBE <0 50 <br /> <2 so MW-10 TPHQ <50 <br /> B <0 50 <br /> MtB <0 50 <br /> T2 C4 <20 <br /> LEGEND <br /> MW-1 SHALLOW GROUNDWATER <br /> MONITORING WELL <br /> DE <br /> REsTauwwAuRAN r +DMW-1 DEEP GROUNDWATER MONITORING <br /> WELL <br /> • B-1 SOIL BORING <br /> N O DW-1 DOMESTIC WELL <br /> _ CHEMICAL ANALYTICAL RESU!'f&- <br /> ANALYTE <br /> TPHg <50 <br /> 50 <br /> MtBE <a 50CONCENTRATION(ppb) <br /> 1,2 DCA <0 50 <br /> TBA <20 1 <br /> < NOT DETECTED AT OR ABOVE THE <br /> 9 0 50 100 LABORATORY REPORTING LIMIT <br /> O eMiiiiiiiiiia ANALYTES <br /> C4 APPROXIMATE SCALE FEET <br /> TPNQ TOTAL PETROLEUM HYDROCARBONS <br /> U AS GASOLINE <br /> z <br /> o s BENNE <br /> U MIRE —METHYL TERT-BUTYL ETHER BY EPA <br /> REFERENCE THIS FIGURE IS BASED ON A"SITE PLAN"PROVIDED METHOD <br /> cD <br /> 1,2 DCA—1o aRaETHANE <br /> BY MORROW SURVEYING,AND A FIELD SKETCH AND IS TBA —TERTIARY BUTYL ALCOHOL <br /> ck INTENDED FOR ILLUSTRATION ONLY <br /> 5 <br /> DRAWN <br /> APaR PR FIGURE 3 <br /> RB ARCO SERVICE STATION#595 <br /> REV DATE <br /> 6100 NORTH HIGHWAY 99 <br /> 17JUN2003 STOCKrON,CALIFORNIA <br /> s S E C O R Jos Na GROUNDWATER CHEMICAL CONCENTRATION MAP <br /> 77BP 50595 02 0336 APRIL 3&4,2003 <br />