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In this paper, we discuss methods to integrate ecological resources, ecosystem services, risk, and the transition to long-term stewardship on Department of Energy lands. Three types of information are required about ecological resources before decisions can be made about remediation, site transitions, and long-term stewardship: (1) the ecological resources and ecosystem functions (such as productivity) present on site and their spatial pattern, (2) the ecosystem services these resources provide to people, and (3) the risks from the interactions between people and these ecosystems. Once the ecological resources and ecosystem services are evaluated, then decisions about future land use, preservation, conservation, or protection of ecological resources within a designated land use can be implemented. Long-term stewardship requires both ecosystem protection in terms of biological resources and ecosystem function as well as biomonitoring to ensure minimal radiological or chemical risk and to inform future management. In some cases, protection of ecological resources may be preferable to cleanup that is physically disruptive, provided land use designation is consistent with ecological protection. In such instances, less site cleanup can prove preferable to more.

The City of New York was suddenly and deliberately attacked on September 11, 2001, killing thousands of people and leaving unbelievable destruction. Thirty-eight buildings and structures were destroyed or damaged, including seven buildings in the World Trade Center site completely leveled. Almost five years later, two very large contaminated buildings, Deutsche Bank at 130 Liberty Street and Fiterman Hall of Borough of Manhattan Community College, have yet to be cleaned up and demolished. Some 30 million square feet of commercial space was lost. Transportation was disrupted, including the loss of the World Trade Center PATH station, the 1/9 subway line and portions of Route 9A and Church Street. Cars were not allowed south of Canal Street for a week. For Americans this was a terrorist attack and a crime. It was a time for mourning losses and responding to disaster. There was the shock that something like this could happen. And there was more. The destruction of the WTC also posed competing environmental, economic and social threats.