The SERDP and ESTCP Weapons Systems and Platforms Program Area initiated an effort to develop a strategy to eliminate >90% of cadmium (Cd) and hexavalent chromium (Cr⁶⁺) in use at Department of Defense (DoD) maintenance depots over the next five years. To that end, the research team visited Letterkenny Army Depot (LEAD) on 17-18 February 2015, in the preparation of this LEAD Implementation Plan.