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0 Van Bebber Property 2480 North Tracy Blvd, Tracy, California February 23, 1996 Phase 77-Report of Findings #3 Page. 3 f ' Table 1 Tabular Summary of Spoil Pile Analytical Data ' Sample LD. - (11/16/95) SP-3 SP-4 SP-5 SP-6 SP-7 TTLC ' Gasoline m /k ND ND ND ND ND NA Diesel m /k ND ND ND ND ND NA ' Methylene Chloride /k 26 15 11 14 16 1 NA Xylenes, total /k 16 ND ND ND ND NA 1 Bis 2-eth lh [ hthalate /k 26 ND ND ND ND NA Motor Oil m /k 590 28 37 9.8 43 NA Oil and Grease (mg/k 1,000 100 1 80 150 1 ND NA Chromium (mg/L) 0.25 ND ND ND ND 22'mg/kg Nickel (m /L) 0.76 6.3 ND ND `D 29 ma Cadmium tn /L ND NO ND ND ND ND ' Lead (mg/L) j 4.8 0.60 ND ND ND 38 m&/kg Zinc (m /L) 1 10 3.1 3.1 2.2 ND 53 mg/kg INote: "ND"=None Detected "NA"=Not Analyzed *sampled 211196 Contaminant Analysis ' All samples had contaminant detections. Elevated Oil and Grease concentrations were present in all samples. Each detected contaminant, for each sample, is discussed in the following sentences. SP-3 tested 26 ug/kg Methylene Chloride, 16 ug/kg Xylenes, 26 ug/kg Bis(2- ethylhexyl)phthalate, 590 mg/kg Motor Oil, 1,000 mg/kg Oil and Grease, 0.25 mg/L Chromium, 0.76 mg/L Nickel, 4.8 mg/L Lead and 10 mg/L Zinc. SP-4 had detectable contaminants of 15 ug/kg Methylene Chloride , 28 mg/kg Motor Oil, 100 mg/kg Oil and Grease, 6.3 mg/L Nickel, 0.60 mg/L Lead and 3.1 mg/L Zinc. SP-5 tested 11 ug/kg Methylene Chloride, 37 mg/kg Motor Oil, 80 mg/kg Oil and Grease and 3.1 mg/L Zinc. SP-6 tested 14 ug/kg Methylene Chloride, 9.8 mg/kg Motor Oil, 150 mg/kg Oil and Grease and 2.2 ' mg/L Zinc. SP-7 had detectable contaminants of 16 ug/kg Methylene Chloride and 43 mg/kg Oil and Grease. The spoil pile composite sample for TTLC Metals detected 22 mg/kg ,! Chromium, 29 mg/kg Nickel, 38 mg/kg Lead and 53 mg/kg Zinc. All other analytes tested