400 Area Waste Management Unit Operating Unit Group 16 (OUG-16)

[TSD ID#: S-4-2] Located near Hanford’s Fast Flux Test Facility (FFTF), the unit’s purpose is to store sodium from the FFTF. The 400 Area has two storage areas: an indoor Fuel Storage Facility and an outdoor pad for storage of large objects. The waste it stores is sodium, sodium-hydroxide, sodium-potassium, and debris contaminated with them.

Enforceable Permit:

Issued in accordance with the applicable provisions of the Hazardous Waste Management Act, Chapter 70.105 Revised Code of Washington (RCW), and the regulations promulgated there under in Chapter 173‑303 Washington Administrative Code (WAC). 

Permit Number: WA7890008967

Unit Specific Conditions


  1. Part A Form
  2. Waste Analysis Plan
  3. Process Information
  5. Procedures to Prevent Hazards
  6. Preparedness & Prevention
  7. Personnel Training
  8. Closure Plan
  9. Inspection Requirements
  10. Contingency Plan

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