After the 2007 quake that caused radiation leakage at Tepco's Kashiwazaki Kariwa Nuclear Power Station the NPP was closed and only allowed to restart after being upgraded to meed the 2006 (ammended upwards 2007) quake/tsunami standards issued by goj .....
roll on to 2011 Tepco press release today
www.tepco.co.jpWe received an Order(*) from the Minister of Economy, Trade and Industry
that requires the enforcement of emergency countermeasures for further
safety at the Nuclear Power Station. Based on this, in addition to
emergency safety countermeasures at Kashiwazaki Kariwa, we organized a
report regarding the prevention of flooding by tsunamis, and further
countermeasure plans to restore safety which was submitted to the Ministry
of Economy, Trade and Industry (METI) on April 21st, 2011.
(Announced on 21st April 2011)
After the submission of the report, some errors were pointed out to us by
the Nuclear and Industrial Safety Agency (NISA). In response, we amended
the errors and re-submitted the report to the Minister of Economy, Trade
and Industry today.
<amended part>
Emergency countermeasures for safety at Kashiwazaki Kariwa Nuclear Power
Station (implementation report)
The data of the maximum load and others in Units 6 and 7 in "Attachment 4-
(3) 1. a. Function of Alternative Water Injection to Reactors and Spent
Fuel Pools" have been amended. (Please see attachments for details)