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aqu 11 WINEW14 , <br /> .0 ek 'r'4`. it .r'$,'•�' &�{�3i �i� "�.J` J` ..�'Z, J W- i-EN.Vit <br /> .i <br /> Y" <br /> SECTION 2 <br /> FIELD OBSERVA7,10NSs SA2 PLE <br /> COLLECTIONAND ANALYTICAL RESULTS <br /> ' a <br /> Section 2 lemoll collection, and arizes arevriews at1edresults odrilling <br /> soil activities <br /> sample <br /> and sample <br /> analyses. <br /> Field Observations <br /> Product in Boring B-11 was encountered at a depth of 12 feet below <br /> grade and continued to a depth of between 35 and 40 feet below grade. <br /> Clean soil was observed at a depth of 40 feet. Boring B-12 encountered <br /> product-affected soil between depths of 22 and 30 feet below grade, and <br /> Boring B-13 encountered no product-affected soil. Figures 2-1 and 2-2 <br /> are cross-sections depicting the occurrence of the product-affected <br /> soil. Figure 2-3 depicts the estimated aerial extent of the product- <br /> affected sail based on observations <br /> borings are provided n Appendix <br /> vities in <br /> 1989 and 1991. Baringg 109S for <br /> A. <br /> r Sample Collection <br /> Two samples were collected in Boring B-11 and one sample each was <br /> collected from Barings B-12 and B-13. Samples were handled <br /> following protocols previously described in this report (See chain-of- <br /> custody farms in Appendix B). All samples were analyzed for TPH by <br /> EPA Method 8015 (modified). In addition to the analysis for TPH, an <br /> analysis for BTXE and a fish bioassay using fathead minnows were <br /> performed on one of the samples from Boring B-11 which appeared <br /> heavily stained by the product. Two additional samples were <br /> collected at the Site from Borings 12 and 13 for purposes of measuring <br /> soil density. <br /> Analytical Results <br /> Samples depths and analytical results for all samples collected on <br /> May 2, 1991 are shown in Table 2-1. Laboratory reports are provided <br /> in Appendix C. <br /> 2-1 <br />