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Page 7 TL 686-082-02 <br /> For : Pacific Gas S Electric Company <br /> 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 (Cont ' d . ) <br /> EPA Methods 5020, 8010 <br /> Location and Depth <br /> .G <br /> Sample #1 : Soil , hydraulic oil tank, product lines <br /> and vent lines <br /> Saslple #2 : Soil , waste oil tank, product lines <br /> and vent lines <br /> Compound Sample No. 1 Sample No . 2 MDL <br /> 1 , 2-Dichloropropane ND ND 0 . 02 <br /> 1 , 3-Dichloropropene NO ND 0. 02 <br /> Trichloroethylene ND ND 0 . 02 <br /> 1 , 1 , 2-Trichloroethane ND NO 0 . 02 <br /> Chlorodibromomethane ND NO 0 . 02 <br /> 2-Chloroethyl Vinyl Ether ND NO 0 . 10 <br /> Bromoform ND NO 0. 02 <br /> 1 , 1 , 2 , 2-Tetrachloroethane NO NO 0. 02 <br /> Tetrachloroethylene ND NO 0 . 02 <br /> Chlorobenzene ND ND 0. 02 <br /> 1 , 3-Dichlorobenzene ND NO 0. 02 <br /> 1 , 2-Dichlorobenzene ND NO 0 . 02 <br /> 1 , 4-Dichlorobenzene ND ND 0 . 02 <br /> All results presented in units of milligrams per kilogram <br /> ( parts per million) . <br /> MDL = Method Detection Limit . <br /> NO = None Detected at or above MDL. <br /> NR = Not required . <br /> THE TWINING LABORATORIES , INC . <br /> John Bricarello , Manager <br /> Chemistry Division <br /> Fresno Modesto Visalia Bakersfield <br />