Skip to main content
Hanford.Gov
Documents

WMA-C - Waste Management Area C Closure Process

 

 

The formal process for making Waste Management Area C (WMA C) final closure decisions are through the Resource Conservation and Recovery Act of 1976 (RCRA) program rules contained in Chapter 173-303 Washington Administrative Code (WAC).  The formal process for making WMA C final closure decisions through these rules will begin with the US Department of Energy (USDOE) – Office of River Protection (ORP) submittal of closure plans that describe their recommended WMA C closure actions.  The closure actions will need to be found by Washington State Department of Ecology (Ecology) to be protective of human health and the environment.  This will be evaluated in part through the use of the WMA C Performance Assessment (PA) which is currently under development.

The WMA C PA is the modeling tool that Ecology (through the Appendix I process) will use to evaluate the risks from landfill closure (i.e., waste left in place at C Tank Farm). The WMA-C PA is  being developed and reviewed on a regular basis in a workshop setting with extensive input from  State and Federal regulators, representatives of tribal nations, regional stakeholder groups  the Nuclear Regulatory Commission, and USDOE Headquarters.

It is expected that workshops will occur throughout the process as more information is gathered to help define WMA C closure actions.

 

  • C-301 Catch Tank Waste Retrieval
    An evaluation of waste removal technologies in the 241-C-301 is provided including estimates of costs and benefits for each.
  • Tank Removal Study
    This study provides an evaluation of demolition and removal of the WMA-C tanks, ancillary equipment, and proximate soils.
  • USDOE Order 435.1 Waste Determination Process Description
    This description will discuss the process that USDOE will use for reaching determinations of the WMA-C residuals after retrieval activities that are subject to DOE Order 435.1.
  • Integration of RCRA and CERCLA at WMA-C
    An evaluation of waste removal technologies in the 241-C-301 is provided including estimates of costs and benefits for each.
  • Pipeline Feasibility Evaluation
    This evaluation provides existing information about WMA-C pipelines, determines estimates of pipeline inventories, and provides a scoping analysis of risk associated with the inventories. Pipeline characterization and remediation technologies are also evaluated.
Last Updated 12/01/2022 10:11 AM