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jejo <br /> Sl7o LEGEND <br /> [n ^ WE L LOCATIONOW NDWATER MONITORING <br /> r <br /> pMw 11 ♦ SOIL VAPOR EXTRACTION WELL LOCATION <br /> 7PHg <50 • SOIL BORING LOCATION <br /> 3 <br /> 1 0 <br /> 0 a< 00 50 ADO S�E� O. DEEP GROUNDWATER MONITORING WELL <br /> N 1 E <050 1oE�� <br /> OFFICE BUILDING 1 -1 x <050 GROUNDWATER EXTRACTION WELL <br /> 1 525 EL DORADO STREET MIRE <0 50 TPHg <50 <br /> 1 AREA OF OVER-EXCAVATION DURING 1999 <br /> rmcl TPHg 3,100 B <0 5500 I I UPGRADE ACTIVITIES <br /> 2 9 E <0 50 <br /> T 12 X <10 (NS) NOT SAMPLED <br /> T <br /> E 120 MtBE 38 TPHg <50 <br /> x 180 B <050 o POWER POLE <br /> 0BE <10 T <060 <br /> p4LEY fes— 1 E <050 ori OVERHEAD POWER LINES <br /> x <10 <br /> MW 0 TPHg <50 m l 1 8 <00 50 �r ll 70SC0 2 MtBE 35 <br /> o-- 7 <0 50 FORMF� STAraN TPHg <50 <br /> TPHg <50 E <0 50 1 ° s0m EL DOpADO ST .8 B <0 50 CHEMICAL ANALYTICAL RESULTS <br /> s <0 50 1 x 33 0 1 oPM� T <0 50 <br /> T <050 E <0 50 ANALYTE <br /> X <050 1 TPHg 5,200ARBE 38 <br /> MW 10 SK TPHg 16,000 <br /> MtBE <0 50 B <50 B ND <br /> T�E�tL �, T <50 MW-3 E ND CONCENTRATION(ugIL) <br /> E 100 <br /> TPHg <50,000 <br /> x 48 MW 7 X ND <br /> B <500 TPHg <50 MtBE 40 TW-4 MW,B MWE NO <br /> T <500 B <0 50 OSA ND NOT DETECTED AT OR ABOVE THE <br /> E <500 T <0 501 PY TPHg <50 LABORATORY REPORTING LIMIT <br /> X <500 E <0 50 D ' B <050 <br /> TPHg 330 MtBE 30,000 X <0 50 TPHg 4,300 T <050 ANALYTES <br /> B <0 50 TPHg <50 MtBE 59 B 380 E <0 50 <br /> T <050 B <050 TPHg <50 TPHg 1,300 T 100 X <10 TPHg TOTAL PETROLEUM HYDROCARBONS <br /> E <0 50 B <0 50 B 10 E 180 MtBE 38 <br /> x <0 50 E <050 T <0 50 DMW� T <0 50 T 38 x 110 AS GASOLINE <br /> MtBE <0 50 x <0 50 E <0 50 E <10 <br /> MteE <20 8 BENZENE <br /> MtBE 076 MW-6 MtBE <89 �E 840 r TOLUENE <br /> aMW-2 IVY 2 TPHg 51,000 E ETHYLBENZENE <br /> MW 7 B <500 <br /> X XYLENES <br /> T <500 <br /> HARp1NG E <500 x <500 <br /> MTBE 55,000 WAY MTBE METHYL TERTIARY BUTYL ETHER <br /> TPHg < <br /> B <00 <br /> 50 <br /> T <0 50 <br /> E <0 50 <br /> TPHg 1,000 DANE x 061 <br /> B 34 • TPHg <50 MW 5 MOBE 39 <br /> T 22 SB 2 B <0 50 <br /> E 45 Mp +EW 1 T <0 50 <br /> x 92 D EW-6 <br /> (AfS-+ rs ) oMw 1 X <0 5500 <br /> MtBE 088 � <br /> -3 �)1 1� (AFS)MW- MW I MtBE 73 <br /> p (Ns) 1 <br /> 3 AC <br /> O m PUMP PAYING <br /> ISLAND <br /> AC <br /> Z 17 ARCO STATION <br /> 8 m #4932 <br /> z <br /> MW 9 m 0 60 120 <br /> PAWNG <br /> Y <br /> FORMERANo APPROXIMATE SCALE FEET <br /> TPHg 953 S,r} EXFSTIhfG U5T8 • <br /> 7 <0 50<0 50 m i i i MW-2 + S&1 i <br /> m <br /> E <0 50 <br /> j, (NS) DRAWN <br /> � PR <br /> x <0 50 �-- <br /> REFERENCE FIGURE 3 <br /> MtBE <0 APPR ARCO STATION#4932 AND FORMER TOSCO STATION#4409 <br /> TOSCO SITE IS BASED ON ON A"SITE CH <br /> 8 PLAN'PROVIDED BY IT CORPORATION 16 EAST HARDING WAY AND1502 NORTH EL DORADO STREET <br /> 0 <br /> AND IS INTENDED FOR ILLUSTRATIONi O REV DATE STOCKTON,CALIFORNIA <br /> C03 <br /> ONLY ARCO SITE SURVEYED BY lz 7JUL20 GROUNDWATER CHEMICAL CONCENTRATION MAP <br /> MORROW SURVEYING JOB NO <br /> 77BP 54932 03 0336 APRIL 28, 2003 <br />