NWTS conceptual reference repository description (CRRD). Volume V. Alternative concepts and facilities impacts

This volume consists of three parts: Part 1: Facility Impacts of Engineering Barriers; Part 2: Facility Concepts for SURF and/or RW; and Part 3: Alternative Underground Development Plans. Each of the above conceptual studies deals with a possible modification to the base case conceptual reference repository described in detail in Volume II of this report, and discusses the effects of such modifications on both capital and operating costs. Part 1 considers the use of a complex multiple-barrier waste package in place of the mild steel canister employed in the base case. Part 2 discusses the dry unloading and temporary storage of fuel elements in place of the wet systems employed in the base case, and considers the possibility of receiving both reprocessing high level waste and spent fuel in the same waste handling complex. Part 3 addresses the subject of alternative shaft locations and underground development schemes