closure project manager - Document Request - U.S. Department of ...

BASES
REO U1RE.D
ACTION C 1
[continued)
REQUIRED
ACTION C.3
Revision 1
Swfem her 1999
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Thz Building 985 exhaust ventilation svstem filtration caoabilits is onlv necessm/
if the system is being used. The Euildine 985 exhaust ventilation svstern ul-ovides
an additional exhaust ~ath from the faciliw bevond that-ulting from operation
of the Building 991 exhaust ventilation system.
Upon toss or dearadation of the filtcrina cauabili@ of the Building 985 FEVS thc
filtered eshaust detv function niav be lost. If the FEVS is not OPERABLE in
the container stowe/stagm * g areas, the fkilitt. shall SC'SPEWD OPERATIONS in
tlie AFFECTED AREAS within fourhours 'Ilie SUSPEND OPERATIONS
REOUIRED ACnOlr;' is a memm to reduce the likelihood of operational
accidents in ths AFFECTED AREAS. The suspension of operations does no1
~~Iact: the filterzd exhaust safety function of the FEVS but attemuts to maintain
an eauivdent risk by reducing the likelihood of fire. spill. puncture. and hvdroaeu
exulosion scenarios. The suspension of omations does not ureclude fire
initiation. Enenzized electrical svstems in the facility dwaw have the uotential to
initiate fires. Hoawsr. the likelihood of electricd svsem induced fires is
considered to be sinnificantlv less ttlan fires initiated bv omrations
(ex.-
niaintenatlce d\