tepcoreutersvia TEPCO.co.jp / Detailed Analysis Results on Groundwater around Units 1 to 4 at Fukushima Daiichi NPS (Results of Measurement around Units 1 and 2)(Follow-up Information 2).

We conducted a purification test of wells (sub-drain pits) located next to the Units 1-4 buildings at Fukushima Daiichi NPS, and detected radioactive materials in water accumulated in the pits.

One possible cause of the entrance of radioactive materials there is fallout. We are installing new observation wells around the Units 1-4 buildings to find out the influence of fallout.

We sampled water in the newly installed sub-drain observation well (1T-4) at the sea-facing side of Unit 1 Turbine Building, and the newly installed sub-drain observation wells (2T-1 and 2T-2) at the sea-facing side of 1-R of Unit 2 Turbine Building. We would like to announce measurement results for tritium.

<Sub-drain observation well 1T-4 (at the sea-facing side of Unit 1 Turbine Building)>
– Sampled on September 11
Tritium 2700 Bq/L

<Sub-drain observation well 2T-1 (at the sea-facing side of Unit 2 Turbine Building)>
– Sampled on September 11
Tritium 20000 Bq/L

<Sub-drain observation well 2T-2 (at the sea-facing side of Unit 2 Turbine Building)>
– Sampled on September 11
Tritium 770 Bq/L

We continue the analyses and the monitor of the situation.

SOURCE: TEPCO.co.jp

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