Excerpt from Nuclear Waste Management Program Summary Report: Workshop on Research and Development Needs in Backfill for Long Term Storage of Nuclear Waste in Deep Geologic Repositories, Held at the National Bureau of Standards, Washington, DC, April 13-14, 1981 The Backfill Development Project at pnl is sponsored by the Office of Nuclear Waste Isolation (onwi). The project has been funded for just over 12 months. Oewi has directed pnl to develop backfill materials for use in repository sys tems in basalt and tuff. We will do a very limited number of tests of material in salt. The current pnl program is limited to materials development and. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.