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MW-2 MW-3 MW-4 <br /> TPPH 340 TPPH 200 TPPH 880 <br /> B 31 B ND<1 0 B 1 ND<5 0 <br /> MTBE 1 200 MTBE 200 MTBE 1 1,200 <br /> N MW-7 <br /> EACLOSU C CHAIN LINK FENCE TPPH ND<50 <br /> 8 ND<0 50 <br /> MTBE ND<2 0 <br /> Q <br /> a� I USrs I DISPENSER <br /> ISLANDS Q <br /> MW-i L � — J Q <br /> TPPH 1 680 <br /> 8 1 ND<5 0 <br /> MTBE 740 U) <br /> �0� a <br /> o � <br /> �i BUILDING <br /> �O <br /> -9Q <br /> MW-6 <br /> TPPH NQ 50 <br /> B ND<0 50 <br /> MTBE ND<2 0 <br /> i <br /> MW-5 <br /> TPPH ND<50 <br /> B ND<0 50 <br /> MTBE I ND<2 0 <br /> NOTE5 <br /> Contour lines are interpretive and based on <br /> laboratory analysis of groundwater samples <br /> TPPH = total purgeable petroleum hydrocarbons <br /> B = benzene MTBE = methyl tertiary butyl <br /> ether Ng/l = micrograms per liter ND = not <br /> detected at limit indicated on official laboratory <br /> report UST = underground storage tank <br /> Results obtained using EPA Method 8260B <br /> LEGEND <br /> DISSOLVED-PHASE HYDROCARBON <br /> Well No Shallow Zone CONCENTRATIONS MAP <br /> TPPH Monitoring Well with February 12, 2004 <br /> MTQEl a IJg I Dissolved—Phase (Shallow Wells) <br /> Hydrocarbon <br /> Concentrations (pg/1) <br /> Circle K Store 08671 <br /> 8606 Thorton Road <br /> Stockton, California <br /> SCALE (FEET) <br /> TRC 0 50 FIGURE 3A <br /> a_ <br /> Grophics on Irvine—fsl(L )\Grcphres\Projects By \20—xxxx\20-0400x-0000\08671+\08671—OMS(NEW)dwg 411210¢ jrw <br />