Design Objectives - doe-std-1128-98

DOE-STD-1128-98

DOE-STD-1022-94 Natural Phenomena Hazards Site Characterization Criteria. (DOE,

1994r)

DOE-STD-3009-94 Preparation Guide for U.S. Department of Energy Nonreactor

Nuclear Facility Safety Analysis Reports. (DOE, 1994s)

DOE-STD-1023-95 Natural Phenomena Hazards Assessment Criteria. (DOE, 1995e)

C.2 DESIGN OBJECTIVES

The design of a plutonium facility should achieve the following objectives:

-- Protect the public and facility personnel from hazards associated with the use of

radioactive and other hazardous materials as a result of normal operations, anticipated

operational occurrences, and design-basis accident conditions, including the effects of

natural phenomena pertinent to the site, and maintain these effects ALARA;

-- ensure compliance with DOE policies regarding nuclear safety, criticality safety,

radiation safety, explosives safety, industrial safety, fire protection, and safeguards and

security protection for special nuclear material;

-- protect government property and essential operations from the effects of potential

accidents; and

-- minimize exposures of personnel and the general public to hazardous material by

emphasizing ALARA concerns during all design, construction, and operational phases.

10 CFR 835.1002 Facility design and modifications provides requirements for the design

objectives.

-- Optimization methods shall be used to assure that occupational exposure is maintained

ALARA in developing and justifying facility design and physical controls.

-- The design objective for controlling personnel exposure from external sources of

radiation in areas of continuous occupational occupancy (2000 hours per year) shall be

to maintain exposure levels below an average of 0.5 mrem (5 microsieverts) per hour

and as far below this average as is reasonably achievable. The design objectives for

exposure rates for potential exposure to a radiological worker where occupancy differs

from the above shall be ALARA and shall not exceed 20 percent of the applicable

standards in 835.202.

-- Regarding the control of airborne radioactive material, the design objective shall be,

under normal conditions, to avoid releases to the workplace atmosphere and in any

situation, to control the inhalation of such material by workers to levels that are

ALARA; confinement and ventilation shall normally be used.

-- The design or modification of a facility and the selection of materials shall include

features that facilitate operations, maintenance, decontamination, and

decommissioning.

C-2