Tepco collected a sample from the sump drain connected to the Unit 1-2 vent tower.
They found 60cm of water in the 100 cm deep container.
The water sample tested as follows:
beta radiation: 60,000,000 bq/liter
Cesium 134: 8,300,000 bq/liter
Cesium 137: 52,000,000 bq/liter
These readings are among the higher ranges of contaminated water found around the plant.