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EPA Releases Annual Report on Treatment Technologies for Site Cleanups

October 1, 2007

On Oct. 1, EPA released a report that documents treatment technology applications at more than 1,900 soil and groundwater cleanup projects at National Priorities List (NPL) sites.

The status of more than 1,200 projects included in the previous annual status report is updated, and information about 192 new projects derived from records of decision (ROD) signed from 2002 through 2005 is added. The report also includes a special section about on-site containment remedies.

The report is based on the analysis of more thanb nearly 3,000 RODs signed since 1982 at 1,536 NPL sites. The online version includes new downloadable spreadsheets with the data for several of the key tables and figures in the report.

The report includes information about:

• Treatment technologies for source control -- In situ and ex situ treatment technologies for sources of contamination (such as soil, sludge, sediment, other solid matrix wastes and nonaqueous phase liquids).
• Treatment technologies and other remedies for groundwater -- In situ and ex situ (pump and treat) groundwater treatment technologies and monitored natural attenuation remedies for groundwater.
• Containment Remedies -- Vertical engineered barriers, caps and liners used to prevent the migration of contaminants or contaminated media.