| Building
Number/Name: Date prepared: Responsible Contractor: Contact: |
EDL November 17, 2000 PNNL R. E. Johanson |
PAST OPERATIONS
Beryllium brought in facility: YES
Form of beryllium: SOLID
Period of beryllium operations (dates): Start: pre-1980 End:
1980s
Location(s) in facility that contained beryllium materials: Oven
in high bay area
Description of beryllium activities: Beryllium thermocouple sheathing was used in the oven in the high bay area. A meltdown of the thermocouple ocured in 1980 and the oven door was opened potentially exposing occupants in the area.
Building monitoring data summary: Three air and two swipe samples were collected on the day after the thermocouple meltdown. All five samples were below detection limits (<0.029 mg/m3 for the airs and <0.002 mg/in2 for the swipes).
Personnel monitoring data summary:
None identified.
Specify Engineering/Administrative controls used during
operations: None identified.
Maximum Estimated Past Be exposure: NONE
CURRENT OPERATIONS
Building still present: YES
Beryllium present: NO
Current building occupancy/activity: Research, 7 occupants
2000 Characterization:
Statistical beryllium wipe sampling was conducted in this facility on May 12, 2000 to characterize residual beryllium levels from past operations. All 29 samples taken had less than detectable levels of removable beryllium (<0.1 µg/100 cm2).Maximum Estimated Current Be exposure: NONE
Basis for above information: Stone
and Webster report and interviews with site personnel.
Comments, including any additional information needed (specify):
None
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