Water treatment halted because the radiation level of the 'component' to absorb caesium exceeded its limit and required replacement. Tepco sats the delay 'will be short."

Japan Times and BBC.

Japan industry minister Kaieda called for restart of suspended nuclear reactors in order to meet demand for summertime electricity.
He said "appropriate action" has been taken to insure safety.
Local governments, however, were more cautious in their remarks.
Japan Times, June 18, 2011.