Harsh Environment

DOE-HDBK-1188-2006

and Operations Authorization. These principles are also identified in DEAR 48 CFR

970.5204-2(b). [Extrapolated from DOE P 450.4] [DOE G 450.4-1B]

268.

HARSH ENVIRONMENT. Air environment where service conditions are expected to exceed

the mild environment conditions as a result of design basis accidents, fires, explosions, natural

phenomena or other man-caused external events. [DOE O 5480.EIA] [EH62dd1]

269.

HAZARD. A source of danger (i.e., material, energy source, or operation) with the potential to

cause illness, injury, or death to a person or damage to a facility or to the environment (without

regard to the likelihood or credibility of accident scenarios or consequence mitigation). [10

CFR 830.3]

270.

HAZARD ANALYSIS. The determination of material, system, process, and plant

characteristics that can produce undesirable consequences, followed by the assessment of

hazardous situations associated with a process or activity. Largely qualitative techniques are

used to pinpoint weaknesses in design or operation of the facility that could lead to accidents.

The hazards analysis examines the complete spectrum of potential accidents that could expose

members of the public, onsite workers, facility workers, and the environment to hazardous

materials. [DOE-STD-3009-94]

271.

HAZARD CATEGORIES. The consequences of unmitigated releases of radioactive and/or

hazardous material are evaluated and classified by the following hazard categories:

A. CATEGORY 1. The hazard analysis shows the potential for significant offsite

consequences.

B. CATEGORY 2. The hazard analysis shows the potential for significant onsite

consequences.

C. CATEGORY 3. The hazard analysis shows the potential for only significant localized

consequences. [DOE O 5480.31] [EH62dd1]

272.

HAZARD CLASSES. Non-nuclear facilities will be categorized as high, moderate, or low

hazards based on the following:

A. High - hazards with a potential for onsite and offsite impacts to large numbers of persons or

for major impacts to the environment;

B. Moderate - hazards which present considerable potential onsite impacts to people or the

environment, but at most only minor offsite impacts, and;