| Building
Number/Name: Date prepared: Responsible Contractor: Contact: |
LSLA, Life Science Laboratory Annex June 10, 2002 PNNL Scott Nickerson |
PAST OPERATIONS
Beryllium brought in facility: Nonsparking 1.8% Beryllium-Copper (CuBe) alloy tools have been used in this facility designed for intrinsically safe storage of flammable and combustible gases and liquids for use in the adjacent Life Science Laboratory 2 Building.
Form of beryllium: Solid
Period of beryllium operations (dates): Since completion of construction in 1988.
Location(s) in facility that contained beryllium materials: Toolbox
Building monitoring data summary: None identified.
Personnel monitoring data summary: None identified.
Specify Engineering/Administrative controls used during
operations: Until information at Hanford and other DOE sites in 2001 indicated that simple storage and use might result in removable beryllium contamination, these tools were not considered to present any hazard as long as they were not modified or refaced.
Maximum Estimated Past Be exposure: There could have been brief inhalation exposures to beryllium if workers used compressed air to clean the tool box in which CuBe tools were stored. Nonsparking tools were used infrequently and stored in this facility.
CURRENT OPERATIONS
Building still present: YES
Beryllium present: While aluminum-bronze alloy replacements were found for most CuBe nonsparking tools in 2001, there are still a small number of CuBe tools requiring high tensile strength for which replacements are not available. These remaining CuBe tools are kept in a separate toolbox labeled to indicate that they contain beryllium and the control measures required.
Current building occupancy/activity: This facility is in use, but is normally unoccupied except during chemical transfer or maintenance activities.
April 2001 Sampling: Wipe samples were collected from inside the toolbox, on the floor under the toolbox, and in a tote tray which was reportedly used to carry CuBe tools during use. The wipe sample from within the toolbox was above the release criteria at 0.76 mg/100cm2. The other samples from the floor and tote tray were less than the 0.2 mg/100cm2 release criteria limit. The toolbox and all tools inside were bagged for disposal immediately following sampling.
Maximum Estimated Current Be exposure: None
Basis for above information:
PNNL Facility Use Agreement for LSL2 and PNNL IH Case #787.
Comments, including any additional information needed (specify):
None
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