TA-8 More Details

March 1998 4 0 TA and Facilities Descriptions Facility Hazard Categories
Table 4-4 identifies the facilities in TA-8 that fall into a facility hazard category because of the type
of operations performed in the facility. Nuclear Facility Hazard Categories
The Radiographic Testing Facility (consisting of Buildings 22, 23, 24, and 70; Figure 4-6, Sheet 1)
is categorized as a Hazard Category 2 nuclear facility because these buildings occasionally house
nuclear materials in sufficient quantities to qualify it as a Category 2 nuclear facilities. Based on
safety analyses, the necessary controls are in place when nuclear materials are being handled.
For all other operations, these buildings are considered non-nuclear. The facility has transient radiological
hazards presented by high-energy x-ray generators, a 60Co source, and a portable linear
accelerator. The facility offers nondestructive radiography as a Laboratory-wide service, which is
used to inspect weapons components (mainly HE parts for high- and low-density inclusions,
cracks and voids, improper assembly, uneven density, and various other flaws).
The buildings’ protection systems include shielding, double containment for radioactive components,
and interlocking radiation machines and doors to the radiation cells so that the cells are
tightly closed before the machinery can be operated. When equipment is operating, warning
signals and warning lights are activated. In addition, scram buttons are activated by unusual occurrences.
Workers use dosimeters and portable gamma-measuring instruments to monitor radiation
levels. Fences control access to exterior areas that may have elevated radiation levels during
operations. Administrative safeguards include routine inspection and maintenance schedules,
personnel training, required knowledge of relevant standard operating procedures, and
safety training. Non-Nuclear Facility Hazard Categories
Five buildings (Buildings 1, 2, 3, 31, and 32; Figure 4-6, Sheet 1) are categorized L/ENS because
of the presence of HE and high-voltage equipment. Buildings 1, 2, and 3 are nonoperational or
abandoned, and all three are contaminated by HE. Buildings 31 and 32 are magazines. Nonhazardous Facilities
TA-8 encompasses 13 administrative, technical, laboratory, and physical support buildings and
structures, which contain operations that are not considered to involve unusual hazards.


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