Following the occurrence of the Niigata-Chuetsu-Oki Earthquake on 
July 16, 2007, The Tokyo Electric Power Company, Incorporated (TEPCO) 
has decided to conduct geological surveys in land and sea areas 
adjoining the Fukushima Daiichi and Daini Nuclear Power Stations in 
a bid to supplement geological surveys conducted in the past and to 
enhance our knowledge.  On November 5, 2007, TEPCO has begun 
execution of boring surveys on the station premises and soil 
characteristics survey on the ground surface in areas adjoining the 
nuclear power stations. 
(Announced on August 17, 2007 and November 5, 2007)

TEPCO announces the plans for a maritime sonic prospecting in a sea 
area adjoining the Fukushima Daiichi and Daini Nuclear Power 
Stations, as well as and subsurface exploration in a land area 
adjoining the Stations.
In this set of survey, we will investigate subsurface structures in 
the sea and land areas adjoining the Stations in order to reflect the 
results in assessment of earthquake resistance and safety of the 
nuclear power stations.  Specifically, TEPCO will conduct a maritime 
sonic prospecting, subsurface exploration using vibrator trucks, and 
boring surveys on the south side of the Futaba fault.

Currently, the following schedule is set for the surveys:
 • Maritime sonic prospecting: December 3, 2007 - March 2008
 • Subsurface exploration: January 7, 2008 - March 2008
 • Boring surveys: early January 2008 - March 2008

TEPCO has submitted its plans for geological and ground surveys at 
the Fukushima Daiichi and Daini Nuclear Power Stations to the Nuclear 
Power Station Safety Technical Meeting of Fukushima Prefecture held 
on November 27, 2007. 

(Appendix)
○ Implementation of Geological and Ground Surveys at the Fukushima 
   Daiichi and Daini Nuclear Power Stations following the Niigata-
   Chuetsu-Oki Earthquake (Part II)