Fukushima Daiichi NPS Prompt Report 2013

This is follow-up information on the latest situation concerning the detection of high densities of tritium and strontium in the observation hole located on the east of the Units 1-4 Turbine Buildings.
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We would like to announce measurement result of cesium and all-β on water in the groundwater observation hole No.3-4 located on the east of the Units 1-4 Turbine Buildings, sampled for the first time on September 12, as we obtained the result.

<Measurement results on the groundwater observation hole No.3-4: Sampled on September 12>
･ Cesium-134: 0.52 Bq/L
･ Cesium-137: 1.3 Bq/L
･ All-β: Below the detection limit value (the detection limit value: 17 Bq/L)

We will monitor water in the above observation location by continuously sampling and analyzing the water.

For the past sampling results, please refer to the following page on our website:
http://www.tepco.co.jp/en/nu/fukushima-np/f1/smp/index-e.html