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Summary and Conclusions
In summary, site selection and/or site qualification
studies for nuclear power plants, according to NRC criteria
and guidelines, require geologic/tectonic analysis and envi-
ronmental baseline studies on both a regional and local scale.
The regional geologic analysis is performed to locate major
lineaments that may be associated with local faults which
may in turn have an effect on determining the level of
seismicity to which a nuclear power plant site may be sub-
jected during its operational life. Satellite data is used
for regional analysis to define possible problem areas and
aerial photography, SLAR, aeromagnetic and gravimetric data
are used in establishing geomorphic/geologic relationships
associated with satellite linears. If the feature is spu-
rious, i.e. cultural, it is documented and all activity
ceases. If it is seasonal, a field reconnaissance is initi-
ated to determine if non-structurally controlled drainage
or moisture patterns are the cause. If it is coincident on
two or more sensors, i.e. Landsat and aeromag, or Landsat
and aerial photography, etc., an extensive geotechnical in-
vestigation may be necessary. This would include field
geologic reconnaissance and may include low level aeromag-
netic surveys, black and white, color and infrared aerial
photography, SLAR and detailed geologic mapping and stress
field determination for the feature or area in question.
The results would be synthesized with the seismotectonic
history of the site area in particular and the region in
general. A conclusion would then be made regarding the
potential of a site experiencing a seismic event (earthquake)
larger than the site has experienced to date.
From the foregoing, it can be seen that site selection
or site qualification for a nuclear power plant employs the
same (if not more) remote sensing methodology and the same
engineering and environmental skills that are required in
any safety-sensitive siting, planning and development project.
Remote sensing in conjunction with detailed field investi-
gation is the most rapid and cost effective method of ac-
quiring a detailed data base from which analysis can be made.
July 27, 1978