Brief presentation on technical guidance for characterizing asbestos related risk in soils that my company authored. Please contact me with questions.

1. Technical Guidance for Asbestos Risk in Soils Neptune and Company, Inc. Denver, CO www.neptuneandco.com

7. Risk Calculation Workbook Disclaimer: Screenshots of asbestos guidance spreadsheet are given as examples only.

8. Particulate Emission Factors Disclaimer: Screenshots of asbestos guidance spreadsheet are given as examples only.

9. Pooled Analytical Sensitivity Disclaimer: Screenshots of asbestos guidance spreadsheet are given as examples only.

10. Sample Size Calculation Disclaimer: Screenshots of asbestos guidance spreadsheet are given as examples only.

11. References Berman DW, Crump KS, (2003) Final draft: Technical support document for a protocol to assess asbestos-related risk . Prepared for Mark Follensbee, Syracuse Research Corporation, Syracuse, NY, and the Office of Solid Waste and Emergency Response, U.S. Environmental Protection Agency, Washington, DC. USEPA #9345.4-06. Limited revision draft. Neptune and Company, Inc. (Neptune), 2011. Technical Guidance for the Calculation of Asbestos Related Risk in Soils for the Basic Management Incorporated (BMI) Complex and Common Areas. Prepared for Nevada Division of Environmental Protection. February 2011. U.S. Environmental Protection Agency (USEPA), (2002) Supplemental Guidance for Developing Soil Screening Levels for Superfund Sites, Office of Solid Waste and Emergency Response #9355.4-24, U.S. Environmental Protection Agency, Washington, D.C.

12. Questions? www.neptuneandco.com Contact our Denver office for more information: Dr. Michael Balshi (mbalshi@neptuneinc.org) Dr. Paul Black (pblack@neptuneinc.org)