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PRE-TANK REPLACEMENT Site Assessment Results 880 VICTOR ROAD LODI, CA. Aegis Project No. 89-014 Page 13 Because of the interlayered soil horizons in the upper soil unit no correlation of the soil types was made. The lower unit appears to be laterally continuous beneath the site. 3 .2 Results of PID Screening/Odor Observations PID screening of soil samples was completed according to methods described in Appendix A. Results of PID screening are recorded on the soil boring logs included in Appendix B. organic Vapors were not detected in any of the soil borings. Odor observations were made by the field geologist and recorded on the soil boring logs. Gasoline odors were not noted in any of the soil borings. 3 . 3 Soil Chemical Analyses Results One soil sample from each boring was submitted for chemical analysis based on PID screening, odor observations, soil classification and depth. All soil samples were analyzed for the aromatic volatile organics, benzene, toluene, ethyl benzene, xylenes (BETX) , chlorobenzene, 1, 2-dichlorobenzene, 1, 3-dichlorobenzene, 1, 4- dichlorobenzene by EPA method 8020, and total petroleum hydrocarbons (TPH) by EPA method 8015 (modified) . Seven samples were analyzed for total lead by EPA method 7421. Detection limits were 10 parts per million (ppm) for TPH, 1 part per billion (ppb) for the aromatic organic volatiles and 1. 2 ppm for total lead. A total of 14 soil samples from the soil borings were submitted for chemical analysis. The analytical results are summarized in Table 2 . Copies of the certified lab reports are included in Appendix A. Of the 14 soil samples submitted for chemical analysis, one sample contained petroleum hydrocarbons above detection limits. Benzene, chlorobenzene 1, 2-dichlorobenzene, 1, 3-dichlorobenzene, and 1, 4- dichlorobenzene and TPH were not found above detection limits in any of the samples. Soil sample B8/1 collected from soil boring B-8 at a depth of 10 feet below grade contained, . 002 ppm ethyl benzene, . 006 ppm toluene, and . 008 ppm xylenes. Seven samples were selected for analysis of total lead. All samples selected for analysis of total lead contained levels of total lead above detection limits. Levels of total lead ranged from 1. 3 to 3 . 4 ppm.