The procedure provides information on the model developed by the Office of Solid Waste to determine maximum acceptable concentrations for hazardous constituents in extracts of wastes. The ground-water screening procedure involves a back calculation from a point of potential exposure at a distance downgradient from a land disposal unit to a point of release from the unit using a fate and transport model.

"EPA/530-SW-86-047." "PB87-101606." Cover title: Background document for the ground-water screening procedure to support 40 CFR Part 268--land disposal restrictions. Includes bibliographical references (pages 56-58). Print reproduction.

1. Ground water screening procedure -- Appendix A -- development of three-dimensional analytical solution for contaminant transport -- Appendix B -- tables of dimensionless concentration c*fd versus xd -- Appendix C -- development of land disposal banning decisions under uncertainty -- Appendix D -- analysis of engineered controls of subtitle C facilities for land disposal restrictions determinations -- Appendix E -- analysis of engineered controls of subtitle C facilities for land disposal restricting determinations revised distribution of leaching rates -- Appendix F -- Analysis of the "infinite source" assumption used in the groundwater model for land disposal banning evaluation -- Appendix G -- Fortran listing ground water screening procedure.