Incidents at Fukushima since April

 Mari Yamaguchi lists the incidents that have occurred at Fukushima in the last 7 months. Note the increasing number (1 in April to 5 in October).  Are the workers just too tired? Here is the list:

• Oct 20-21: Heavy rains wash contaminated storm-water over protective barriers around storage tanks at six locations, before workers finish setting up additional pumps and hoses to remove the water.

• Oct 9: Six workers remove the wrong pipe, dousing themselves with highly radioactive water. TEPCO says exposure for the workers, who were wearing facemasks with filters, hazmat suits and raingear, is negligible. An estimated 7 tons of water almost overflows the barrier around it.
• Oct 7: A worker mistakenly presses a stop button during a power switchboard check, stalling a pump and cooling-water supply to the Unit 1 reactor for a split second. A monitoring device for Units 1 and 2 and a building ventilator also fail briefly until backup power kicks in.
• Oct 2: Workers overfill a storage tank for radioactive water, spilling about 430 liters (110 gallons). The workers were trying to maximize capacity amid the plant’s water storage crunch. Most of the spill is believed to have reached the sea via a nearby ditch.
• Oct 1: About 5 tons of contaminated rainwater overflows when workers pump it into the wrong tank, most of it seeping into the ground.
• Sept 27: A piece of rubber lining mistakenly left inside a water treatment unit clogs it up, causing it to fail hours after it resumed a test-run following repairs. The fragment is removed, and the unit returned to testing.
• Sept 19: A firefighting water pipe is damaged during debris removal, and 300 liters of non-radioactive water spurt out. The same day, TEPCO provides Prime Minister Shinzo Abe with a hazmat suit for a plant visit with the wrong Japanese character for his family name on the nametag. Spotting the mistake halfway through the tour, an apparently displeased Abe peels the sticker off.
• Sept 12: A water treatment machine overflows, leaking about 65 liters of contaminated water, when a worker doing unrelated work nearby inadvertently shuts a valve.
• Aug 19: A patrolling worker finds a massive pool of contaminated water spilling out of a protective barrier around a storage tank. TEPCO later concludes an estimated 300 tons escaped unnoticed over several weeks.
• April 4: A worker pushes the wrong button on a touch panel, temporarily stopping one of three water treatment units during a pre-operation test.