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LEGEND <br /> ARCO AM/PM MONITORING WELL TO---45 FEET <br /> SERVICE STATION <br /> MONITORING WELL TO—30 FEET <br /> PRIVATE ROAD MONITORING WELL TO—20 FEET <br /> TPHg 640 0 ABANDONED MONITORING WELL <br /> B <1 0 TPHg 1 4 CHEMICAL ANALYTICAL RESULTS <br /> TPHg ND<50 MtBE 710 B 1 q <br /> B ND<05 BA ND<200 MtBE 760 ANALYTE <br /> MtBE 27 TBA ND<100 <br /> TBA ND<100 MW-9* BPHg ND<05 <br /> W Mt3E ND<20 CONCENTRATION(y <br /> MW-4 MW-3 w TBA ND<100 g1L) <br /> SERVICE F <br /> STATION Z <br /> BUILDING 4 ANALYTES <br /> W MW-7 <br /> UNDERGROUND TPHg--TOTAL PETROLEUM HYDROCARBONS <br /> USED OIL TANK v AS GASOLINE <br /> TPHg ND<50 /DISPENSER ISLANDS } = B BENZENE <br /> B ND<05 UNDERGROUND ¢ <br /> MtBE ND<20 STORAGE TANKS / MWMW 2 MW-5 I— <br /> MtBE—METHYL TERTIARY BUTYL ETHER <br /> TBA ND<100 Y Cn TBA —TERT-BUTANOL <br /> MW-10 MW-1 R 1 w TAME—TERTIARY AMYL METHYL ETHER <br /> MW-1 0 MW-8 TPHg ND<50 * TAME REPORTED IN WELL <br /> TPHg 130 B ND<05 MW-9 AT 6 9 yg/L <br /> B ND<05 MtBE 18 <br /> Q MtBE 88 TBA 1,600 <br /> ER TPHg ND<50 <br /> O TBA 1,500 P DRIVEWAY B ND<05 <br /> c� MtBE 59 <br /> TBA ND<100 REANALYZED PAST HOLD TIME <br /> � 4RIVENA`1 TPHg ND< <br /> p TPHg ND<50 B ND<50 <br /> W PHg ND<1,000 B ND<05 MtBE 340 <br /> to B ND<10 MtBE ND<20 TPHg 170 TBA 33,000 <br /> w MtBE 380 TBA ND<100 B ND<OS <br /> BA 75,000** MtBE 200 <br /> TBA 590 <br /> O <br /> U <br /> z MW-6- <br /> 0 <br /> U <br /> t.7 <br /> , <br /> Y <br /> 0 50 100 <br /> O <br /> iiiiiiii <br /> rn APPROXIMATE SCALE FEET <br /> T <br /> 6 DRAWN GMH FIGURE 2 <br /> APPR TOSCO SERVICE STATION#11193 <br /> TP 3202 WEST HAMMER LANE <br /> ~ STOCKTON CALIFORNIA <br /> REV DATE <br /> 25,ruL2003 GROUNDWATER CHEMICAL <br /> S E C 0 R E7!7jBP 50193 00 0036 CONCENTRATION MAP - JUNE 27, 2003 <br />