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Tank Farm Closure Performance Assessment

C Tank Farm Aerial Photo The Tank Farm Closure Performance Assessment activity supports the U.S. Department of Energy's Office of River Protection. The tank farm closure performance assessment will document the information (including estimates of future environmental and human health impacts) from closing Hanford’s 177 tanks. This performance assessment will be maintained, so that as new information is obtained, the document will be updated. Wastes that are expected to remain in the farm after closure are:

  • Wastes from past leaks
  • Residual waste left in tanks after retrieval
  • Waste from potential leaks during retrieval, and
  • Waste in the infrastructure outside of the tanks, such as piping

The performance assessment will meet the requirements of the Department of Energy’s Order on Radioactive Waste Management (DOE O 435.1) and the Hanford Federal Facility Agreement and Consent Order (more commonly known as the Tri-Party Agreement). In addition, the document will be summarized as risk assessments to be included in other documents supporting tank waste retrieval and tank closure.

To support this effort, a large number of supporting documents (definition documents, data packages, simulation reports and other documents) have been and/or are being created.

Performance Assessments

Title Issue Date Rev. Document #
& File Size
Preliminary Performance Assessment for Waste Management Area C at the Hanford Site, Washington - includes Appendices A through D Sept. 2003 0 DOE/ORP-2003-11
7.70 MB

Risk Assessments

No files available yet.

Definition Documents for Performance Assessment Effort

Title Issue Date Rev. Document #
& File Size
Performance Objectives for Tank Farm Closure Performance Assessments Sept. 2005 2 RPP-14283
4.09 MB
Contents of Long-Term Performance Analyses to Support the Retrieval and Closure of Tanks for the Washington State Department of Ecology Jan. 2004 1 RPP-14284
2.05 MB

Data Packages

Title Issue Date Rev. Document #
& File Size
Modeling Data Package for an Initial Assessment of Closure for C Tank Farm Apr. 2003 0 RPP-13310
1.87 MB
241-C Waste Management Area Inventory Data Package Apr. 2003 0 RPP-15317
412 KB

Simulation Reports

Title Issue Date Rev. Document #
& File Size
2004 Initial Assessments of Closure for the S-SX Tank Farm: Numerical Simulations Apr. 2004 0 PNNL-14604
14.1 MB
2003 Initial Assessments of Closure for the C Tank Farm: Numerical Simulations July 2003 0 PNNL-14334
62.7 MB

Other Documents

Title Issue Date Rev. Document #
& File Size
Tank Farm Vadose Zone Contamination: Volume Estimates for Risk Assessments Dec. 2004 0 RPP-23405
612 KB
Exposure Scenarios and Unit Dose Factors for Hanford Waste Tank Performance Assessments May 2004 4 HNF-SD-WM-TI-707 & App. A
10.4 MB
App. B & C
4.65 MB
App. D - G
7.79 MB

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