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CX-004183: Categorical Exclusion Determination

Tank 15 Riser Demolition and Removal and Chromate Restoration Scope
CX(s) Applied: B1.3
Date: 09/15/2010
Location(s): Aiken, South Carolina
Office(s): Environmental Management, Savannah River Operations Office

Tank 15 must be prepared for waste removal. This modification traveler will prepare the tank for future waste removal systems/equipment. Risers 2, 2A, 4A, and 8 have to be cleared of any waste tank equipment to enable installation of three mixer pumps and a transfer pump. Existing structural steel is to be used for the three mixer pumps to be installed on risers 2, 4A and 8. Confirm existing steel against existing nonconformance report. Provide system modification to the chromate cooling coils. Refer to U-Statement of Work-H-00007 for tank 15 scope of work. Riser 3 to be demolished and removed for future slurry mixer pumps.