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t �t <br />SOIL TEST RESULTS <br />Pacific Bell, 124 W. Elm Street <br />Lodi, California <br />(Date: 9-20 & 21, 1988) <br />Method AVO EPA 8020, TPN EPA 8015 MOD <br />TPH <br />B <br />EB <br />T <br />X <br />BORING PPM <br />PPB <br />PPB <br />PPB <br />PPB <br />#1 @ 20' <10 <br /><1.0 <br />0.0 <br /><1.0 <br /><1.0 <br />#1 @ 28' <10 <br />0.0 <br /><1.0 <br /><1.01 <br /><1.0 <br />#2 <br />@ <br />20' <br /><10 <br /><1.0 <br />0.0 <br /><1.0 <br /><1.0 <br />#2 <br />@ <br />28' <br /><10 <br /><1.0 <br /><1.0 <br />0.0 <br /><1.0 <br />#3 <br />@ <br />20' <br /><10 <br /><1.0 <br /><1.0 <br /><1.0 <br /><1.0 <br />#3 <br />@ <br />25' <br /><10 <br /><1.0 <br /><1.0 <br /><1.0 <br /><1.0 <br />Method AVO EPA 418.1 (3550 Extraction) <br />Results of EPA 418.1 indicate a TEPH of 836 PPM at the east end <br />of the tank at 20 feet deep. Other than this one test result and <br />bore hole #3 @ 20' with TEPH of 25 PPM, all other test results <br />including BTX&E are non-detectable. <br />Visual inspection of the soil samples did not indicate any <br />contamination. There was no odor in the samples. <br />Discussion with the laboratory staff indicates that the 3550 <br />extraction method in conjunction with the EPA 418.1 test method <br />identifies all hydrocarbons. The staff also indicates that the <br />TEPH of 836 PPM probably is a heavier hydrocarbon then diesel at <br />CIO -14 range. <br />PAGE 2 <br />TEPH <br />PPM <br />#1 <br />@ <br />20' <br />836 <br />#1 <br />@ <br />28' <br /><1 <br />#2 <br />@ <br />20' <br /><1 <br />#2 <br />@ <br />28' <br /><1 <br />#3 <br />@ <br />20' <br />25 <br />#3 <br />@ <br />25' <br /><1 <br />Results of EPA 418.1 indicate a TEPH of 836 PPM at the east end <br />of the tank at 20 feet deep. Other than this one test result and <br />bore hole #3 @ 20' with TEPH of 25 PPM, all other test results <br />including BTX&E are non-detectable. <br />Visual inspection of the soil samples did not indicate any <br />contamination. There was no odor in the samples. <br />Discussion with the laboratory staff indicates that the 3550 <br />extraction method in conjunction with the EPA 418.1 test method <br />identifies all hydrocarbons. The staff also indicates that the <br />TEPH of 836 PPM probably is a heavier hydrocarbon then diesel at <br />CIO -14 range. <br />PAGE 2 <br />