The final report on the explosion at Wacker Chemie claims equipment failed and the explosion was unavoidable. 

The Tennessee Department of Environment and Conservation (TDEC) says evidence shows the equipment failure happened on September 7 of last year just before 4:00 p.m.

The report claims it was unlikely that public health or the environment were impacted.

Since the environment and public health were not affected, the state recommended no penalties against Wacker.

Here is the entire report from TDEC:

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