Fukushima local court detected 186,000 Bq/kg from the sludge of the side ditch in their Aizu wakamatsu branch,where is 100km far from Fukushima plants.
According to government’s regulation,they can keep the sludge in a concrete shelter if it’s 8,000 Bq/kg ~ 100,000 Bq/kg,but it’s beyond the limit in this case,so they have no clue of what to do with it.
They leave it there and made the area around the off-limits area. The air dose was 0.24 uSv/h.