Radiation News Roundup for July 27, 2013 Tokyo Electric Power Co. waited too long to announce that radioactive groundwater from Fukushima No. 1 is reaching the Pacific Ocean, President Naomi Hirose admitted Friday. japantimes.co.jp The National Nuclear Security Administration (NNSA) today announced a collaboration with the New Zealand Ministry of Foreign Affairs and Trade (MFAT) to provide mobile radiation detection equipment to countries in Latin America, South East Asia and Africa. yournuclearnews.com A small fire shuts down Callaway nuclear plant. ksdk.com Mitsubishi Heavy Industries Ltd. will fight Southern California Edison's allegations of gross negligence in the design and manufacture of steam tubes built for the San Onofre nuclear power plant, which has been permanently shut down due to excessive wear in the tubes. abcnews.go.com