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groundwater in the wells was 28 68 feet bgs (-18 91 feet msl) The elevations <br /> ranged from --18 57 feet to —19 31 feet msl The groundwater flow direction <br /> is easterly at a gradient of approximately 0 005 foot per linear foot <br />' 2.3 BTEX and TPH-G Analytical Results <br /> Xylenes and TPH-G were detected in the groundwater sample collected from <br /> well MW-2 in March 2005 Benzene, toluene, and ethylbenzene were not <br /> detected The concentrations of petroleum hydrocarbons decreased from the <br /> previous event BTEX and TPH-G were not detected in the samples collected <br /> from the remaining wells MW-1, MW-3, or MW-4 <br /> i <br /> The current BTEX concentrations were compared to the California Drinking <br /> Water Maximum Contaminant Levels (MCLs) The MCLS in groundwater <br /> are benzene (1 gg/L), toluene (150 pg/L), ethylbenzene (300 pg/L), and <br /> xylenes (1,750 gg/L) Based on the current groundwater monitoring data, the <br /> concentrations of petroleum hydrocarbons were less than MCLs <br /> 2.4 Oxygenates Analytical Results <br /> Fuel oxygenates were not detected in any of the groundwater samples <br /> collected in March 2005 The oxygenate MTBE was evaluated against the <br /> California Drinking MCL The MCL in groundwater for MTBE is 13 gg/L <br /> Based on the current groundwater monitoring data, the concentrations of <br /> TPH-G and BTEX in the samples were less than MCLs <br /> Quarterly Groundwater Monitoring Report <br /> March 2005 <br /> Prepared for SARA LEE BAKERY GROUP,INC Prepared by Philip Services Corporation <br />' Investigative and Quarterly Report Ilst Quarterly Report 03_2005(final) September 23,2005 <br />