Hanford Site
CERCLA Five-Year Review

SECOND CERCLA FIVE-YEAR REVIEW INITIATED

**The Second CERCLA Five-Year Review Report for the Hanford Site was reissued.  The reissued version (Revision 1) includes the comments and responses from the Confederated Tribes of the Umatilla Indian Reservation that were inavertently omitted from the first version.


The U.S. Department of Energy (USDOE) has initiated the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) five-year review at the Hanford Site.The first five-year review was conducted in 2000 by the EPA.

CERCLA requires that for all remedial actions taken that resulted in hazardous substances, pollutants, or contaminants remaining at a site above levels that allow for unlimited use and unrestricted exposure, the lead agency review actions no less often than every five years after the initiation of the selected remedial action. The review will determine if the measures taken are still successful in protecting the worker, the public and the environment.

DOE will conduct the CERCLA five-year review in coordination with the U.S. Environmental Protection Agency. EPA is ultimately responsible for certifying the review.

The scope of the review is limited and does not include all of the activities covered by the TPA. In addition to CERCLA, the TPA addresses regulated Resource Conservation and Recovery Act (RCRA) units, as well as, past practice units that are regulated under RCRA and/or CERCLA. Only operable units listed as past-practice units under CERCLA are covered in this five-year review. Active treatment, storage, or disposal units regulated under RCRA, such as the tank farms, will not be part of this review.

The scope of this review includes:

• 100 Area: removal of contaminated soil, decontamination and/or demolition of contaminated buildings, treatment of contaminated groundwater, removal of spent nuclear fuel
  
  
• 200 Area: inactive soil disposal sites, inactive facilities, contaminated groundwater and the Environmental Restoration Disposal Facility
  
  
• 300 Area: removal of contaminated soil waste sites and debris, treating the material, as appropriate, and disposing of material in an appropriate facility
  
  
• 1100 Area: cleanup completed except for a few hazardous waste areas being managed by caps and institutional controls

DOE requests public input on the evaluations of the remedial actions identified in the report. A 30-day public review period will be held May 8 through June 15, 2006. Public input will be considered before the report is finalized.