The U.S. Department of Energy (DOE or Department) is committed to managing its responsibilities associated with the legacy of World War II and the Cold War. This legacy includes radioactive and chemical waste, environmental contamination, and hazardous materials at over 100 sites across the United States and the territory of Puerto Rico. DOE has taken major steps toward fulfilling its commitments to clean up this environmental legacy by successfully implementing an accelerated environmental remediation program.

This document records major accomplishments that LM achieved in calendar year 2017. The intent is to provide a record for future generations who are interested in the work completed during 2017. LM will note any data reflected by the fiscal year—as opposed to calendar year—as applicable throughout the document.

Annual Historical Summaries provide a selection of the many activities LM performs during calendar years. The summaries offer stakeholders information about recent work that LM has conducted. In addition, future historians and researchers can use the summaries to place the activities of LM into larger contexts, such as the history of the U.S. Department of Energy.