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• A 3 <br /> GROUNDWATER ANALYTICAL DATA <br /> Shell-branded Service Station <br /> 620 West Charter Way <br /> Stockton,CA <br /> SAP Code 136147 <br /> Incident No 98996187 <br /> MTBE by MTBE by Other Fuel <br /> Sample Date TPHg B T E X 8020 82608 EDB 1 2 DCA Oxygenates Comments <br /> Depth(ft) Sampled (pg/L) (Ng/L) (Ng/L) (NglL) (Ng/L) (ug/L) (ug/L) (Ng/L) (Ng/L) (Ng/L) <br /> CPT-1w <br /> 50 27-Mar-00 26,300 8,230 593 838 1,330 821 842 <100 <100 Not detected Elevated DL <br /> 72 27-Mar-00 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <0 500 <0 500 <0 500 Not detected <br /> 79 27-Mar-00 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <0 500 <0 500 <4 500 Not detected <br /> CPT-2W <br /> 30 28-Mar-00 <50 0 152 <0 500 <0 500 <0 500 <2 50 <0 500 <0 500 <0 500 Not detected <br /> 38 28-Mar-00 688 14 2 57 0 855 1 08 5 64 <2 00 <2 00 <2 00 Not detected Elevated DL <br /> 50 28-Mar-00 12,900 4,550 336 331 137 <50 0 <50 0 <50 0 <50 0 Not detected Elevated DL <br /> CPT-3W <br /> 30 29-Mar-00 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 <0 540 <0 500 <0 500 Not detected <br /> 49 29-Mar-00 2,530 517 254 227 113 177 <10 0 <10 0 <100 Not detected Elevated DL <br /> 65 29-Mar-00 1,590 379 381 898 272 <12 5 <10 0 <100 <10 0 Not detected Elevated DL <br /> 74 29-Mar-00 19,900 2,940 541 1,180 282 345 <50 0 <50 0 154 Not detected Elevated DL <br /> 83 29-Mar-00 <50 0 231 <0 500 0 842 0 839 <2 50 <0 500 <0 500 <0 500 Not detected <br /> I <br /> CPT-4W <br /> 47 30-Mar-00 439,000 13,204 28,100 6,280 38,700 1,290 294 <20 0 <20 0 Not detected Elevated DL <br /> 66 30-M8r-00 4,770 494 429 236 659 <12 5 <100 <10 0 498 Not detected Elevated DL <br /> 74 30-Mar-00 10,400 132 619 229 1,470 283 <100 <100 176 Not detected Elevated DL <br /> B4 30-Mar-00 1,320 138 780 277 192 287 <1 00 <1 00 <1 00 Not detected Elevated DL <br /> Abbreviations and Notes. <br /> TPHg=Total petroleum hydrocarbons as gasoline by EPA Method 8015(Modified) <br /> BTEX=Benzene toluene ethylbenzene and xylenes by EPA Method 8020 <br /> MTBE=Methyl tertiary butyl ether by EPA Methods 8020 and 8260B as noted <br /> EDB=1 2 drbromoethane by EPA Method 82608 <br /> 1 2-DCA=12 dichloroethane by EPA Method 82608 <br /> Other Fuel Oxygenates=Tertiary butyl alcohol ethyl tertiary butyl ether di isopropyl ether and tertsary amyl methyl ether by EPA Method 82608 <br /> pglL=Micrograms per liter(parts per billion) <br /> <x=Not detected at method detectron limit of x <br /> I <br /> DL=Detection limits <br /> 0778 1 <br />