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TABLE 1 Soil Chemical Analytical Data Tracy Byron Road Tracy,California Concentrations reported in milligrams per kilogram(mg/kg) Sample Soil Boring Depth Date Ethyl- Total (SB)ID (feet bgs) Collected TPHc Benzene Toluene benzene Xylenes SB-36-8 8 10/30/03 29600 <0.0513 0.1 0.3 3.2 SB-36-12 12 10/30/03 19900 <0.055 0.1 0.3 <1.55 SB-36-32 32 10/30/03 <4.0 <0.005 <0.005 <0.005 <0.02 Notes: bgs=Below ground surface TPHc=Total petroleum hydrocarbons quantified as crude oil(C1O through C36) <=Less than laboratory reporting limits 1. TPH was detected in the method blank at a concentration of 6.4 mg/kg. Since TPH was not detected in the sample,the results are reported. 2. TPH was detected in the method blank associated with this sample. Since the TPH concentration in the sample is more than 5 times the blank value,the data is reported. 3. Due to the presence of an interferent near its retention time,the normal reporting limit was not attained for benzene. The concentration of the compound cannot be determined due to the presence of this interferent. 4. TPH was detected in the method blank at a concentration of 6.4 mg/kg. The blank value was not subtracted from the analytical result. 5. Due to the nature of the sample matrix,normal reporting limits were not attained. 6. TPH was not detected in the method blank associated with this sample. No TPH was detected in the method blank from a second extraction. Since the hold time had expired prior to the reextraction,all results are reported from the original extract. Similar results were obtained in both extracts. 7. Due to the nature of the sample matrix,a reduced aliquot was used for analysis. The reporting limits were raised accordingly. 8. Due to insufficient sample size,Lancaster Laboratory was unable to report their usual reporting limits. The values reported represent the lowest reporting limits obtainable. 9. Due to the presence of an interferent near its retention time,the normal reporting limit was not attained for total xylenes. The presence or concentration of this compound cannot be determined due to the presence of this interferent. 10. Due to excessive foaming of the sample it was diluted,therefore normal reporting limits were not attained. 11. The sample was received at the laboratory outside the extraction hold time. 12. Due to the dilution of the sample made necessary by the high level of non-target compounds,normal reporting limits were not attained. 13. The reporting limits were raised because sample dilution was necessary to bring target compounds into the calibration range of the system. Page 4 of 4