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DOE-HDBK-1184-2004
If STC contamination is discovered on material and equipment that is to be moved,
or that is located in an area that is to be released from contaminated area status,
efforts should be made to both contain the contamination, and to warn individuals of
its presence. All contaminated items should be securely packaged or wrapped in
such a manner that the STC contamination will not be inadvertently disturbed by
individual activities, environmental forces (such as air or liquid flow), or work
activities (such as the application of mechanical force or heat). Packages and
wrapping materials should be appropriate for the surface to be contained and the
expected environment. Programs should be established to periodically inspect
packages and wrapping materials to ensure they do not degrade in long-term
storage or use. If degradation is noted, surface contamination monitoring should be
performed to detect and determine the magnitude of the release of STC
contamination. The package or wrapping material should be repaired or replaced,
as appropriate.
Material and equipment that are contaminated with STCs should be clearly labeled
to indicate the type and extent of the contamination, and thereby facilitate tracking
of the items and ensure implementation of appropriate controls and monitoring
during activities involving the contaminated items. If practical, a log of STC-
contaminated material and equipment should be maintained. Such a document
may prove useful when planning work activities and associated monitoring and
control activities. STC-contaminated material and equipment that is no longer in
use should be decontaminated and released or disposed of as soon as practicable.
This will reduce the likelihood of spreading STC contamination during storage
periods, and as a result, any unplanned or unauthorized access to the material.
If practicable, separate spaces and facilities should be dedicated to storage, use,
and decontamination of STC-contaminated material and equipment. Likewise,
consideration should be given to laundering STC-contaminated protective clothing
and other launderable items separately. These measures will reduce the likelihood
of spreading STC contamination to previously unaffected areas, systems, and
items, necessitating expansion of the STC monitoring and control program, and will
facilitate control over these items. Should it be necessary to use, handle, or store
STC-contaminated items in common areas, then it will be necessary to expand the
STC contamination monitoring program to encompass affected surfaces and
systems, such as ventilation and drain systems and surrounding areas. Similarly,
areas, items, and systems that are dedicated to STC-contamination purposes, such
as decontamination areas and laundry equipment, should be routinely monitored for
residual STC contamination.
See section 3.2.1.2 for guidance relating to areas containing materials or equipment
where tritium is bound tightly to the surface and/or to the matrix below the surface.
6.2.9
Training
General Employee and Radiological Worker Training
Because of the specialized control and monitoring requirements that are necessary
for STCs, enhanced training should be provided to individuals entering affected
areas, or working in the vicinity of affected items to ensure they are equipped to
recognize and respond to STC hazards.
57


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