31st: Excavation and recovery operation in Lianhuapao, Dunhua City, Jilin Province (the 11th phase-stage 4) (Nov. 2011)

Outline:: Following the 11th phase of excavation and recovery operation (stage 3) (September 1, 2011-September 26, 2011), the 11th phase of excavation and recovery operation (stage 4) was conducted.

Duration:: 15 October ～ 13 November 2011

Excavation

Detection of chemicals

Excavated shells