Alternatives for Managing the Nation''s Complex Contaminated Groundwater Sites
English
By (author): Committee on Future Options for Management in the Nation's Subsurface Remediation Effort Division on Earth and Life Studies National Research Council Water Science and Technology Board
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.
Table of Contents- Front Matter
- Summary
- 1 Introduction
- 2 Magnitude of the Problem
- 3 Remedial Objectives, Remedy Selection, and Site Closure
- 4 Current Capabilities to Remove or Contain Contamination
- 5 Implications of Contamination Remaining in Place
- 6 Technology Development to Support Long-Term Management of Complex Sites
- 7 Better Decision Making During the Long-Term Management of Complex Groundwater Contamination Sites
- Acronyms
- Appendix A: Biographical Sketches of Committee Members and Staff
- Appendix B: Complex Site List
- Appendix C: Analysis of 80 Facilities with Contaminated Groundwater Deleted from the National Priorities List