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GeoloykalTechnics Inc. % Page 4 Project No.: 675.2 Murray Soil Investigation Report �+ January 5, 1999 The data is summarized in Table 1 of Appendix A and the lab data reports are attached in Appendix B. Information on Ethyl Benzene and Trichlorofluoromethane from The Merck Index, Eleventh Edition, is included in Appendix B. 4.0 CONCLUSIONS AND RECOMMENDATIONS' 4.1 Conclusions Given the data gathered during this soil testing and presented above, Geological Technics Inc. concludes that: 1. Concrete patch, P-1, was probably a equipment footing and does not represent an environmental concern. 2. Concrete patch, P-2, contained a very low level of oil range organics. It is possible that this was a result of naturally occurring organic materials in the soil. This has been observed in high clay content soils at other sites. Solvents were not detected in this soil sample so there does not appear to be a environmental concern associated with this location. 3. The septic tank for the floor drains appear to have been used to dispose of waste products during a previous operation. Kimball Fiberglass Corp. reportedly operated at the site in the past. Much of the debris in the drains and septic tank were fiberglass pieces. 4. Diesel range petroleum hydrocarbons were not detected where the former UST was located nor was there any unnatural staining or odor. This does not represent and environmental concern. 5. The domestic well was abandoned on December 29, 1998. 4.2 Recommendations Given the conclusions listed above, Geological Technics Inc. makes the following recommendations. These recommendations stand as our proposed scope of work for the next phase of investigation. Listed below is a schedule for performing this work. Floor Drain • The floor drains inside the building should be filled with concrete so materials cannot be disposed of in them in the future. Septic Tank • The contents of the septic tank should be removed by a hazardous waste contractor • This material should be disposed of in an appropriate manner at Forward Landfill Leach Line • The leach line should be investigated to determine its nature (horizontal perforated pipe or vertical rock well) • The condition(contaminated or not) of the leach line should be investigated Sample Collection& Testing • Soil samples should be collected under the tank and under the leach line • Samples should be tested for Volatile Organic Compounds by method 8260 Report Preparation • Prepare a summary report of the findings and recommendation for further work r.