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CAMBRIA Table 2. Groundwater Extraction System Analytical Results- Shell-branded Service Station, Incident#98995874, 341 East Main Street, Ripon, California II Totalizer Meter Sample Reading TPHg Benzene MTBE TSA Ethanol Date (gallons) (Concentrations in ppb) I 05/01/00 64,200 <50 <0 5 <0 5 <20 <100 05/19/00 64,200 <50 <0 5 <0 5 <20 <100 05/26/00 134,000 <50 <0 5 139 <100 <500 06/01/00 190;600 <50 <0 5 1,390 <100 <500 06/07/00 242,800 <50 <0 5 1,860 <100 <500 06/15/00 308,900 <50 <05 2,590 <2,500 <25,000 06/20/00 313,100 <50 <05 <0 500 <20 <100 06/28/00 427,100 <50 <05 <0 500 <20 <100 07/07/00 506,800 <50 <05 <0 500 <20 <100 07/12/00d 542;600 --- --- --- 07/18/00 544,100 <50 <05 0 599 <20 <100 08/10/00 545,600 <50 <05 <0 500 <40 <1,000 After Second 1,000-lbs Carbon Filter Vessel 03/10/00 0 NA NA NA NA NA 03/13/00 1,100 <50 <0 5 <1 <50 <200 03/15/00 16,905 <50 <0 5 <1 <50 <200 03/31/00 17,500 NA <0 5 <0 5 <50 <100 04/05/00 34,300 <50 <0 5 <05 <50 <100 04/07/00 51,700 <50 <0 51 <05 <50 <100 04/28/00 51,700 <50 <0 5 <0 5 <20 <100 05/01/00 64,200 <50 <0 5 <0 5 <20 <100 05/19/00 64,200 <50 <0 5 <0 5 <20 <100 05126/00` 134,000 <50 <05 <0 5 <20 <100 06/01/00 190,600 <50 <05 1,410 <100 <500 06/07/00 242,800 <50 <0 5 <0 5 <20 <100 06/15/00 308,900 <50 <0 5 <2 00 <100 <1,000 06/20/00 313,100 <50 <0 5 196 <20 <100 06/28/00 427,100 <50 <0 5 <0 5 <20 <100 g Inpon341im1gmtable x15 Page*4 • J r