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I � <br /> I <br /> 1 by EBASCO Services, Inc. - April, 1988 . <br /> 2 2 . 2 . 1. Area I. Area I was the only portion of the Site which <br /> 3 was investigated by PG&E. Sampling results presented in the <br /> 4 Preliminary Assessment and Site Characterization reports indicate <br /> 5 the presence of several hazardous substances in soil and ground <br /> 6 water at the Site. These sampling results provide a basis for <br /> 7 further study of the Site and any other property parcels which were, <br /> 8 at any time, operated by PG&E as a portion of the original gas <br /> 9 manufacturing facility. <br /> 10 2 . 3 . Remedial Investigation Results. During the preliminary <br /> 11 remedial investigation of Area I by PG&E, four shallow wells and one <br /> 12 deep well were constructed from which soil and ground water samples <br /> 13 were collected and analyzed. The constituents found in soil and <br /> 14 ground water samples were collected and analyzed. The highest <br /> 15 concentrations of contaminants found in soil and ground water <br /> 16 samples are presented below using data from the Preliminary <br /> 17 Assessment and Site Characterization reports. <br /> 18 2 . 3 . 1. Soil . <br /> 19 Constituent Soil Concentration <br /> 20 Polynuclear Aromatic <br /> 21 Hydrocarbons (PNA) 6, 200 mg/kg <br /> 22 Lead 4 , 600 mg/kg <br /> 23 Arsenic 42 mg/kg <br /> 24 Benzene 5 . 3 mg/kg <br /> 25 Toluene 15 mg/kg <br /> 26 , Chlorobenzene 4 . 4 mg/kg <br /> 27 Ethylbenzene 25 mg/kg <br /> ?APER 6 <br /> CALIFORNIA <br /> 3 REV. 8.721 <br />