[en] This document describes the installation of wells necessary to implement the 100-HR-3 and 100-KR-4 Interim Remedial Action. the placement of wells is based on numerical modeling and requirements contained in the Record of Decision dated 4-1-1996. All of the wells drilled for this project will be designed as potential production wells. Five wells will be drilled in the 100-H Area to supplement seven existing wells. Initially, three of the wells will be injection wells; the remaining two wells will be used for compliance monitoring wells. These wells will be used in conjunction with two existing wells. In the 100-K Area, thirteen wells will be drilled to supplement two existing wells; five of the wells be used as extraction wells, four of the wells will be used as injection wells, and the remaining four wells will be used as compliance monitoring wells