LLNL's Diagram of Chronological Events and B695 Weekly Inspection Reports
Activities leading to the incident were: (1) RCRA Class 2 Permit Modification granted on July 25, 2007 to install a walk-in fume hood in room 1025; (2) USQ-695-07-148 to do the work approved on 9/17; (3) ducting removed early October done by Facility Personnel under IWS 10331.09; (4) ducting swiped for 'free release' radioactivity only by team 1 personnel on 10/16; (5) all ducting and valves remained in building 695 room 1025 except for one piece delivered to building 391 (MMED shop); (6) material delivered by facility personnel to MMED shope B391 on about 10/19; (7) MMED personnel took a duct piece to B511 shop and removed the flange which went to salvage; (8) MMED personnel took the duct piece back to B391 shop and welded on a cap; (9) RHWM personnel picked up the welded duct from B391 around 10/26 and returned ti to B695 room 1025; and (10) the analysis report receive don 12/3 indicated that beryllium swipes take on 11/16, in B695 room 1025, and on ducting that did not leave the room where personnel worked, were above the release level for beryllium.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 1022153
- Report Number(s):
- LLNL-TR-475451; TRN: US201118%%326
- Country of Publication:
- United States
- Language:
- English
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Technical Safety Requirements for the B695 Segment of the Decontamination and Waste Treatment Facility
Technical Safety Requirements for the B695 Segment