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CAMB RIA
<br /> Table 1. Groundwater Extraction - System Analytical Results -Shell-branded Service Station -
<br /> Incident#98995874, 341 East Main Street, Ripon, California
<br /> Sample Meter
<br /> Date Reading TPI-Ig Benzene MTBE TBA Ethanol
<br /> (gallons) 4 (Concentrations in b)-
<br /> After Second 1,000-lbs Carbon Filter Vessel
<br /> 03/10/00 0 --- --- ---
<br /> 03/13/00 1,100 <50 <0.5 <1 <50 <200
<br /> 03/15/00 16,905 <50 <0.5 <1 <50 <200
<br /> 03/31/00 17,500 --- <0.5 <0.5 <50 <100
<br /> 04/05/00 34,300 <50 <0.5 <0.5 <50 <100
<br /> 04/07/00 51,700 <50 <0.5a <0.5 <50 <100
<br /> 04/28/00 51,700 <50 <0.5 <0.5 <20 <100
<br /> 05/01/00 64,200 <50 <0.5 <0.5 <20 <100
<br /> 05/19/00 64,200 <50 <0.5 <0.5 <20 <100
<br /> 05/26100a 134,000 <50 <0.5 <0.5 <20 <100
<br /> 06/01/00 190,600 <50 <0.5 1,410 <100 <500
<br /> 06/07/00 242,800 <50 <0.5 <0.5 <20 <100
<br /> 06/15/00 308,900 <50 <0.5 <2.00 <100 <1,000
<br /> . 06/20/00 313,100 <50 <0.5 1.96 <20 <100
<br /> 06/28/00 427,100 <50 <0.5 <0.5 <20 <100
<br /> 07/07/00 506,800 <50 <0.5 <0.5 <20 <100
<br /> 07/12/00 542,600 System shut down
<br /> 07/18/00 544,100 <50 <0.5 0.694 <20 <100
<br /> 08/10/00 545,600 <50 <0.5 <0.5 <40 <1,000
<br /> 09/22/00 545,900 <50 <0.50 <0.50 <20 <100
<br /> 09/29/00 566,300 <50.0 <0.500 <0.500 <20.0 <100
<br /> 10/04/00 581,500 <50.0 <0.500 <0.500 <20.0 <100
<br /> 10/13/00 608,200 <50.0 <2.00 <2.00 <100 ---
<br /> 10/20/00 640,900 <50.0 <0.500 <0.500 <20.0 <100
<br /> 10/27/00 688,000 <50.0 <0.500 <0.500 <20.0 <100
<br /> 11/03/00 741,600 <50.0 <0.500 <0.500 <20.0 <100
<br /> 11/10/00 801,100 <50.0 <0.500 <0.500 <20.0 <100
<br /> 11/17/00 863,600 <50.0 <0.500 <0.500 <20.0 <100
<br /> 11/22/00 908,600 <50.0 <0.500 <0.500 <20.0 <100
<br /> 12/01/00 992,500 <50.0 <0.500 <0.500 <20.0 <100
<br /> 12/08/00 1,057,400 <50.0 <0.500 <0.500 <20.0 <100
<br /> 12/13/00 1,103,700 <50.0 <0.500 <0.500 <20.0 <100
<br /> 12/20/00 1,168,900 <50.0 <0.500 <0.500 <20.0 <100
<br /> 12/28/00 1,240,300 <50 <0.50 <0.50 <20 <500
<br /> 01/03/01b 1,297.320 <50 <0.50 <0.50 <20 <500
<br /> 01/11/01 1,372,200 <50.0 <0.500 <0.500 <20.0 <100
<br /> 01/17/01 1,426,100 <50.0 <0.500 <0.500 <20.0 <100
<br /> 01/26/01 1,508,700 <50.0 <0.500 <0.500 <20.0 <100
<br /> 02/02/01 1,571,100 <50.0 <0.500 <0.500 <20.0 <100
<br /> 02/09/01 1,632,200 <50.0 <0.500 <2.50 --- ---
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