File: UA_README.TXT Example 3MRA Exit Level Uncertainty Analysis for 7 Chemicals November 20, 2003 Center for Exposure Assessment Modeling (CEAM) National Exposure Research Laboratory - Ecosystems Research Division Office of Research and Development (ORD) U.S. Environmental Protection Agency (U.S. EPA) 960 College Station Road Athens, Georgia 30605-2700 706/355-8400 ----------------------------------------------------------------------------- CONTENTS INTRODUCTION SYSTEM REQUIREMENTS INSTALLATION USER NOTES CHEMICALS EVALUATED CONTACT INFORMATION ----------------------------------------------------------------------------- INTRODUCTION This example analysis considers two basic scenarios in assessing national risk for land-based disposal/treatment. The analysis uses 3MRA Version 1.0 and tools in 3MRA Version 1.x. The example is provided as such to assist in understanding of the approaches being used to evaluate uncertainty in predictions, and the basic aspects of the 3MRA national risk assessment. ----------------------------------------------------------------------------- SYSTEM REQUIREMENTS * Windows 98/2000/XP * Hard disk requirements - 1 GB available * If you do not have an Adobe SVG viewer installed yet, you will need to install the one provided here. * If you do not have a Microsoft (r) Excel license, you will need to install the open-source Excel Viewer provided here. ----------------------------------------------------------------------------- INSTALLATION * Run the setup file Example_UA.EXE and select any target directory * Depending on need, also proceed with SVG and Excel viewer installations. * Launch "MasterFileFinderIndex.html" ----------------------------------------------------------------------------- USER NOTES * Example "exit level" calculations in this analysis are preliminary in nature and have not undergone full Quality Assurance evaluation still pending for Version 1.x tools. * Example "exit level" calculations in this analysis have not been reviewed in detail by the Office of Solid Waste, and do not reflect proposed or final policy. * The enclosed file sets provide two basic approaches in viewing 3MRA modeling system outputs: - Graphical HTML-based Aggregate Analysis based on Mean Probabilities - A spreadsheet-based Uncertainty Analysis. * There is also a summary exit level analysis table provided for each chemical. * The file set for this example analysis provides a good deal of information, where the presentation approach represents only one of many ways to view and further process 3MRA modeling system results. ----------------------------------------------------------------------------- CHEMICALS EVALUATED 1. Benzene (CASID: 71-43-2) 2. Benzo(a)pyrene (CASID: 50-32-8) 3. PCE - Tetrachloroethylene (CASID: 127-18-4) 4. TCDD - 2,3,7,8-Tetrachlorodibenzo-p-dioxin (CASID: 1746-01-6) 5. Arsenic (CASID: 7440-38-2) 6. Divalent Mercury (CASID: 7439-97-6) 7. Nickel (CASID: 7440-02-0) ----------------------------------------------------------------------------- CONTACT INFORMATION For questions or information concerning installation or testing of this system, contact the Center for Exposure Assessment Modeling (CEAM): phone: 706/355-8400 email: ceam@epamail.epa.gov fax: 706/355-8104 mail: Center for Exposure Assessment Modeling (CEAM) National Exposure Research Laboratory - Ecosystems Research Division U.S. Environmental Protection Agency (U.S. EPA) 960 College Station Road Athens, Georgia 30605-2700 CEAM software products and their status are available through the World Wide Web (WWW) at the following Uniform Resource Locator (URL): http://www.epa.gov/ceampubl/ -----------------------------------------------------------------------------