Fukushima Daiichi Nuclear Power Plant: Contaminated water leakage suspected of violating implementation plan. TEPCO blamed the problem on workers who overlooked that the valves in the pipes inside the equipment were left open while running water through the system.
In response, the Nuclear Regulation Authority, which is the secretariat, has established work rules and safety measures. It pointed out that this was suspected to be a violation of the "implementation plan" and called for thorough measures to prevent it from happening again.