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Title: Closure Report for Corrective Action Unit 357: Mud Pits and Waste Dump, Nevada Test Site, Nevada, Revision 0 with ROTCs 1-3

Technical Report ·
DOI:https://doi.org/10.2172/859319· OSTI ID:859319

This Closure Report presents information supporting the closure of Corrective Action Unit (CAU) 357: Mud Pits and Waste Dump, Nevada Test Site, Nevada. This Closure Report complies with the requirements of the Federal Facility Agreement and Consent Order (FFACO, 1996) that was agreed to by the State of Nevada, the U.S. Department of Energy, and the U.S. Department of Defense. The corrective action sites (CASs) within CAU 357 are located within Areas 1, 4, 7, 8, 10, and 25 of the Nevada Test Site. Corrective Action Unit 357 is comprised of the following CASs: • CAS 07-09-02, Mud Pit • CAS 07-09-03, Mud Pit • CAS 07-09-04, Mud Pit • CAS 07-09-05, Mud Pit • CAS 08-09-01, Mud Pit • CAS 08-09-02, Mud Pit • CAS 08-09-03, Mud Pit • CAS 10-09-02, Mud Pit • CAS 10-09-04, Mud Pit • CAS 10-09-05, Mud Pit • CAS 10-09-06, Mud Pit; Stains; Material • CAS 01-99-01, Boxes; Pipes • CAS 04-26-03, Lead Bricks • CAS 25-15-01, Waste Dump The purpose of this Closure Report is to provide documentation supporting the closure alternatives of no further action, clean closure, or close in place with administrative controls for the CASs within CAU 357. The following activities were performed during the investigation: • Conducted geophysical and radiological surveys to assist in the selection of sample locations and identification of lead bricks/debris. • Collected environmental samples to be submitted for chemical and radiological analysis. • Evaluated analytical data, determined extent of contamination, and reviewed remedial alternatives to determine a remedial action at applicable CAS. • Performed closure activities to address the presence of substances regulated by the Nevada Administrative Code 445A.2272 (NAC, 2003).

Research Organization:
Stoller-Navarro Joint Venture
Sponsoring Organization:
USDOE - National Nuclear Security Administration (NNSA)
DOE Contract Number:
DEAC-5203NA99205
OSTI ID:
859319
Report Number(s):
DOE/NV-1045
Country of Publication:
United States
Language:
English