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TABLE 1 ANALYTICAL RESULTS OF GRAB GROUND WATER SAMPLES EPA METHODS 8015M/826013 WINDELER RANCH GLASS DISPOSAL 640 West Mossdale Road, Lathrop, California 6µg/1) Notes µg/1: micrograms per liter ft bsg: feet below surface grade DTW: depth to water TPH-g: total petroleum hydrocarbons quantified as gasoline TPH-d: total petroleum hydrocarbons quantified as diesel MTBE: methyl -tertiary butyl ether 1,2 -DCA: 1,2-dichloroethane + approximate depth to water approximate depth to water measurement caculated assuming boring was located on the floor of an excavation area, approximately 8 feet below surface grade approximate sample depth assuming boring was located on the floor of an excavation area, approximately 8 feet below surface grade. Advanced GeoEnvionmental, Inc. 01",° ,! ��Ru1 AA B -1W 02/27/09 14+ 22 <50 <50 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 B -2W 02/27/09 13.45 24 <50 <50 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 B-3 W 02/27/09 22' 264 <50 <50 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 B -4W 02/27/09 22 264 <50 1 <50 1 <0.5 1 <0.5 1 <0.5 <0.5 1 <0.5 <0.5 Notes µg/1: micrograms per liter ft bsg: feet below surface grade DTW: depth to water TPH-g: total petroleum hydrocarbons quantified as gasoline TPH-d: total petroleum hydrocarbons quantified as diesel MTBE: methyl -tertiary butyl ether 1,2 -DCA: 1,2-dichloroethane + approximate depth to water approximate depth to water measurement caculated assuming boring was located on the floor of an excavation area, approximately 8 feet below surface grade approximate sample depth assuming boring was located on the floor of an excavation area, approximately 8 feet below surface grade. Advanced GeoEnvionmental, Inc.