Across the United States, thousands of hazardous waste sites are contaminated with chemicals that prevent the underlying groundwater from meeting drinking water standards. These include Superfund sites and other facilities that handle and dispose of hazardous waste, active and inactive dry cleaners, and leaking underground storage tanks; many are at federal facilities such as military installations. While many sites have been closed over the past 30 years through cleanup programs run by the U.S. Department of Defense, the U.S. EPA, and other state and federal agencies, the remaining caseload is much more difficult to address because the nature of the contamination and subsurface conditions make it difficult to achieve drinking water standards in the affected groundwater. Alternatives for Managing the Nation's Complex Contaminated Groundwater Sites estimates that at least 126,000 sites across the U.S. still have contaminated groundwater, and their closure is expected to cost at least $110 billion to $127 billion. About 10 percent of these sites are considered "complex," meaning restoration is unlikely to be achieved in the next 50 to 100 years due to technological limitations. At sites where contaminant concentrations have plateaued at levels above cleanup goals despite active efforts, the report recommends evaluating whether the sites should transition to long-term management, where risks would be monitored and harmful exposures prevented, but at reduced costs.

A common thread ties together the five case studies of this book: the persistence with which the bilateral relationship between the United States and the Soviet Union continues to dominate American foreign and regional policies. These essays analyze the LIC environment in Central Asia, the Middle East, Southeast Asia, Latin America, and sub-Saharan Africa.

A Plea for Help

Includes papers and abstracts dealing with eradication of invasive species in Alaska, Australia, Baker Island, California, Christmas Island, Enderby and Rose Islands, Galapagos Islands, Hawaii, Howland Island, Japan, Jarvis Island, Laysan Island, Lord Howe Island, Mauritius, Mexico, Nauru, New Zealand, Northern Ireland, Northern Mariana Islands, Saint-Paul Island, Seychelles, West Indies.