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.

He said three top officials, including himself, will have their pay cut for the error.

Tepco didn't officially confirm until Monday that radioactive groundwater reached the sea, even though the utility found high levels of radiation in well samples near the ocean in mid-June.