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DOE-STD-1022-94
and/or if investigations to define the hazards have not previously been conducted. The detailed
requirements in this section are applicable for obtaining the site information which is needed for
implementation of DOE NPH requirements.
B.
The criteria needed to provide site-specific information to perform wind, flood, seismic, and other
geological hazard analyses are provided in Sections 5.1 to 5.5 (see also DOE-STD-3009-94). The
meteorological-related hazards include wind hazards due to storms and tornadoes, and flood hazards due
to intense precipitation and snow. Characterization of the information needed to assess these hazards is
addressed in Section 5.2. The hydrologic hazards include flooding either from surface water or ground
water. Section 5.3 provides criteria to collect site-specific information needed to quantify these hazards.
Criteria for seismic hazard characterization, volcanic hazards, and non-tectonic surface deformation are
provided in Section 5.4. Section 5.5 provides specific requirements to conduct geotechnical studies
relevant to the hazards being studied.
5.1 SITE DESCRIPTION
A. The description of the site and boundaries shall, at a minimum, include the following:
1. The geographical location of the site for which there shall be no ambiguity for estimating the distance
from the site to the sources of potential hazards, and for the use of hazard zone maps, such as those
provided in the model building codes.
2. A general location map to clearly define the boundary of the site and to show the relative distance from
the site to natural and man-made features, and to sources of potential hazards, such as rivers, lakes,
oceans, volcanoes, faults, dams, levees, etc.
3. Detailed mapping of topographic, hydrologic, surface, and subsurface geologic features, as appropriate
for the particular site conditions, with scales and contours suitable for NPH assessment. The
topographic map shall also show the character of surface drainage patterns and the topographic
elevation of the site relative to near-by hydrologic features, such as rivers, streams, or lakes and local
surface drainage channels, ponds, springs and sinks at the site.
5.2 METEOROLOGY
A. The sources of meteorological hazards include winds (straight, hurricane, and tornado winds), precipitations
and temperature changes. Meteorological data to be collected includes: (1) wind speeds and direction, (2)
precipitation and rainfall records, and (3) air temperature. The extent of meteorological data needed to be
collected is dependent upon the performance categories of facility SSCs.
B. For sites containing facilities with SSCs in Performance Category 1 or 2, it is sufficient to utilize results
of previous probabilistic wind hazard studies, if available, or to utilize information provided in model
building codes or national consensus standard such as ANSI/ASCE 7-98 (ASCE, 1998b). For sites
containing facilities with SSCs in Performance Category 3 or 4, and for which no up-to-date site-specific
probabilistic wind hazard studies have been performed in accordance with specifications in
DOE-STD-1023-95, site-specific characterization criteria are provided in the following paragraphs.
8


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