Building Layout - doe-std-1128-98

DOE-STD-1128-98

C.4 BUILDING LAYOUT

Building layout is extremely important in the operation of a plutonium facility. Improper or

poor layout can lead to operational difficulties and in some instances can contribute to the

development of abnormal situations that may affect personnel safety, result in unnecessary

exposure to the worker and the public, and/or increase the cost of operating the facility.

Normally, three areas are involved in the overall building layout. These areas may be

described as:

-- The process area, where plutonium or other radioactive or hazardous materials are

used, handled, or stored;

-- the controlled area, which is normally free of radioactive material but could potentially

become contaminated; and

-- the uncontrolled area, which includes all areas where no radioactive materials are

permitted and radiological controls normally are not necessary (e.g., offices and

lunchrooms). The terms controlled area and uncontrolled area defined above refer to

radiologically controlled and uncontrolled areas. These terms are not to be confused

with the formal definitions of controlled and uncontrolled areas related to safeguards

and security concerns.

C.4.1 Objectives

The following objectives should be achieved in the design layout of the facility:

-- Planned radiation exposures to personnel shall be within the prescribed limits

of 10 CFR 835 Occupational Radiation Protection (DOE, 1998a). 10 CFR

835.1002 contains requirements for ALARA design objectives for the design

of new facilities or the modification of old facilities.

-- The planned or unintentional release of radioactive materials from the facility

should be confined to the limits of DOE Order 5400.5, Ch. 2 (DOE, 1993c),

and should be ALARA.

C.4.2

General Design Criteria

All planned processing, research and development (R&D), scrap- and waste-

handling, analytical, storage, shipping, and receiving operations should be

accommodated. Receiving operations that involve removal of radioactive material

from protective shipping containers should be performed in a handling area that has

provisions for confinement.

Real-time or near real-time accountability systems should be incorporated if

possible.

The possibility of operating with multi-shifts per day should be taken into account

in allocating space for personnel support facilities and for any special equipment

that might be required to support multi-shift operations.

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