ARCHIVED REPORTS XR0009405 - Laserfiche WebLink

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f I assessment in January 1990, and samples were collected at a depth of 15 feet below grade. In July, ten additional soil samples were collected during the removal of the underground fuel tanks. Additional samples were taken in October at the former tank locations to depths of 35 feet below grade. All previous sampling i i4 locations are shown in Figure 1-3. A summary of the analytical laboratory results is given in Table 1.1. Original laboratory reports for these data are shown in Appendix A. ' Contaminated soil encountered during the January and June sampling events has been removed. Contaminated soil encountered ' in the October investigation is largely confined to the northeast sector . of the excavation (sample location S6) at a depth of 33 feet below grade. Some contaminated soil also remains at a depth of 17 feet at sample location S2. The absence of gasoline detections, low diesel detections, and low detections of benzene, toluene, and xylene suggest ii that little contaminated soil remains on the west, north and r southeast sides of the excavation (sample locations S3, S5, and S1 respectively). ; I r I I } I r 4 i� y� f 1 I ' t L r, r I i 4 I I 1-3 y � I I ` I a }