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• INTRODUCTION <br />On June 2 1997 Sanborn Creek Mine drilled three wells to evaluate soil stability at the mine site. <br />One extra well was drilled to evaluate the presence of contaminates around the outside shop area. <br />Appendix A, Sample Location Map, shows the location of each well. A Split Spoon sampler <br />was used to collect a composite sample every five feet. Each sample was analyzed with a Photo <br />Ionization Detector (PID) for the presence of volatile hydrocarbons. The composite sample was <br />then divided into two sub-samples, one for GEO-Technical analysis and the other for hazardous <br />material analysis. Quality control samples were also collected for hazardous material analysis. <br />Each sample was placed into a cooler and chilled to 4° C with ice. The lab results are <br />sunmiarized in the Soil Sample Results section with the lab report in Appendix B. Copies of the <br />sample chain-of-custody are located in Appendix C <br />OXB-1 is located between the railroad track along Highway 133 about 100 yards east of Sanborn <br />Creek Mine's coal silo. A depth of 18 feet was gained before the auger hit too many large rocks <br />to continue drilling. Moisture content of the soil was slightly wet to dry. The soil samples had a <br />PID reading of zero and didn't appear to have any discoloration or odor. <br />OXB-2 is located about 10 feet due east from the north east comer of the upper maintenance <br />shop. A depth of 22 feet was gained before the auger hit too many large rocks to continue <br />drilling. Moisture content of the soil was slightly wet to dry. The soil samples had a PID <br />• reading of zero and didn't appear to have any discoloration or odor. <br />OXB-3 is located about 100 feet west of the base of the gob pile in the center of the road. A <br />depth of 26 feet was gained before the auger hit too many large rocks to continue drilling. <br />Moisture content of the soil was dry. The soil samples had a PID reading of zero and didn't <br />appeaz to have any discoloration or odor. <br />OXE-1 is located about 150 feet south from the center of the outside maintenance shop next to <br />the belt line. A depth of 16 feet was gained before the auger hit too many large rocks to continue <br />drilling. Moisture content of the soil was slightly we[ to dry. The soil samples had a PID <br />reading of zero and didn't appeaz to have any discoloration or odor. <br />BAK were trip blank samples used for quality control. The trip blank consisted exclusively of <br />DI water. The samples were collected in the office and immediately placed into the cooler. <br />Prior to removing two underground fuel storage tanks last year, an initial site assessment was <br />completed. Water samples taken along Elk Creek, the most likely location for contamination to <br />be detected that has a potential [o be transported off site, was evaluated. The results are <br />summarized in the Prior Sample Results section with copies of the lab report in Appendix D. <br />Copies of the sample chain-of-custody aze located in Appendix E. The underground fuel storage <br />tanks were removed in August 1996, and the soil beneath [he tanks (15 feet below the ground <br />surface) was also sampled. The results are summarized in the Storage Tanks Results section of <br />this report with copies of the lab report in Appendix F. Copies of the sample chain-of- custody <br />• are located in Appendix G. <br />