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Page 6 TL 686-082-02 <br /> For : Pacific Gas b Electric Company <br /> ai Stockton Service Center <br /> Stockton, California <br /> Sample : 2 soils <br /> Received : 1-9-87 from Karl Kerner , Twining Laboratories , Inc . <br /> VOLATILE HALOGENATED HYDROCARBONS <br /> EPA Methods 5020, 8010 <br /> Location and Depth <br /> if Sample #1 : Soil , hydraulic oil tank, product lines <br /> and vent lines , 2 feet <br /> Sample #2 : Soil , waste oil tank, product lines <br /> and vent lines , 2 feet I <br /> Compound Sample No . 1 Sample No . 2 MDL <br /> Chloromethane ND ND 0. 10 <br /> Chloroethane ND ND 0. 02 <br /> Bromomethane ND ND 0 . 02 <br /> Vinyl Chloride ND ND 0 . 10 <br /> Dichlorodifluoromethane ND ND 0 . 02 <br /> Methylene Chloride ND ND 0. 02 <br /> Trichlorofluoromethane ND NO 0 . 02 <br /> 1 , 1-Dichloroethene ND ND 0 . 02 <br /> 1 , 1-Dichloroethane ND ND 0 . 02 <br /> 1 , 2-Dichloroethene ND ND 0 . 02 <br /> Chloroform ND ND 0 . 02 <br /> 1 , 2-Dichloroethane ND ND 0 . 02 <br /> 1 , 1 , 1-Trichloroethane ND ND 0 . 02 <br /> Carbon Tetrachloride ND ND 0 . 02 <br /> Bromodichloromethane ND NO 0 . 02 <br /> All results presented in units of milligrams per kilogram <br /> ( parts per million) . <br /> MDL = Method Detection Limit . <br /> ND = None Detected at or above MDL. <br /> NR = Not required . <br /> THE TWINING LABORATORIES , INC . <br /> John Bricarello , Manager <br /> Chemistry Division <br /> Fesrw Modesto Visalia Bakersfield <br />