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CAMBRIA <br /> Table 1 Mass Removal Data-Shell-branded Service Station,Incident#98996222,3725 Tracy Boulevard,Tracy,California <br /> Cumulative TPPH Benzene MTBE <br /> Volume Volume TPPH TPPH Removed Benzene Benzene Removed MTBE MTBE Removed <br /> Date Well Pumped Pumped Sample Concentration Removed To Date Concentration Removed To Date Concentration Removed To Date <br /> Purged _ ID (gal) (gal Date (ppb} (pounds) (pounds) (ppb) ds <br /> ,. � (p oun ) (pounds) (ppb) (Pounds) (pounds) <br /> 02/07/00 MW LA 1 000 1 000 12/07/99 <500 < 000417 <0 00417 < 500 < 000004 < 000004 46 900 039135 0 39135 <br /> 03/07/00 MW LA 1,000 2000 02/18/00 10,000 008344 <0 08762 < 100 < 000083 < 000088 47,500 039636 078771 <br /> 04/07/00 MW-lA 500 2,500 02/18/00 10,000 004172 <0 12934 < 100 < 000042 < 000129 47,500 0 19818 098589 <br /> 05/09/00 MW-LA 1,000 3,500 05/01/00 2,740 002296 <0 15220 < 2 5 < 000002 <000131 26,300 021946 120534 <br /> 06/09/00 MW-lA 1,000 4,500 05/01/00 2,740 002286 <017506 < 2 5 < 000002 < 000134 26,300 021946 142480 <br /> 02/07/00 MW 2A 1 000 1,000 12/07/99 < 100 < 000093 <008845 < 1 < 000001 < 000098 2 640 002203 080974 <br /> 03/07!00 MW 2A 1 000 2000 02/18/00 < 100 <0 00083 <0 08928 < 1 < 0 0000 E < 000089 248 000207 081181 <br /> 04/07/00 MW-2A 500 2,500 02/18/00 < 100 < 0 00042 <0 08970 < 1 < 000000 < 000090 248 000103 081284 <br /> 05/09/00 111W-2A 1,000 3,500 05/01/00 <50 < 000042 <0 09012 < 0 5 < 000000 < 000090 265 000221 081505 <br /> 06/09/00 MW-2A 1,000 4,500 05/01/00 <50 < 000042 <0 09054 < 0 5 < 000000 < 000091 265 000221 081726 <br /> 03/07/00 BF-1 3 000 3 000 02/18/00 <50 000 < 125165 < 134094 < 500 < 001252 < 001341 148,000 370499 451670 <br /> 04/07/00 BF-1 2,000 5,000 02/18/00 <50,000 < 083444 <0 92414 < 500 < 000834 < 000924 148,000 246993 3 28277 <br /> 05/09/00 BF-1 2,000 7,000 05/01/00 1,850 003087 <012099 < 240 < 000401 < 000491 106,000 176900 258406 <br /> 06/09/00 BF-1 2,500 9,500 01/01/00 1,850 003859 <012913 < 240 < 000501 < 000591 106,000 221125 302852 <br /> Total Gallons Extracted 18,500 Total Pounds Removed <2,33354 < 003124 116044 <br /> Total Gallons Removed <0 38255 <000428 187249 <br /> TPPH=Total purgeable hydrocarbons as gasoline <br /> MtBE=Methyl tert butyl ether <br /> µg/L=Micrograms per liter <br /> ppb=Parts per billion equivalent to pglL <br /> L-Liter <br /> gal=Gallon <br /> g=Gram <br /> *=Concentration based on most recent groundwater monitoring results <br /> Mass removed based on the formula volume extracted(gal)x Concentration(1tgIL)x(gl10'pg)x(pound/453 6g)x(3 785 Llgal) <br /> Volume removal data based on the formula density(in gmslcc)x 9 339(ccx[bslgmsxgals) <br /> TPPH benzene analyzed by EPA Method 8015/8020 <br /> MTBE analyzed by EPA Method 8260 in bold font all other MTBE analyzed by EPA Method 8020 <br /> Groundwater extracted by vacuum iruc&s provided by ECI Water disposed of at a Martinez Refinery <br />