Engineering Report Single-Shell Tank Farms Interim Measures to Limit Infiltration Through the Vadose Zone

摘要

This document identifies, evaluates and recommends interim measures for reducing and eliminating water sources and preferential pathways within the vadose zone of the single-shell tank farms. Features studied: surface water infiltration and leaking water lines that provide recharge moisture, and wells that could provide pathways for contaminant migration. An extensive data base, maps, recommended mitigations, and rough order of magnitude costs are included.