The findings of an investigation into the clean-up of a toxic chemical site, near Nelson, will be issued on Tuesday.
The Parliamentary Commissioner for the Environment is to report on the effectiveness of the clean-up and whether it met consent conditions.
New mechanical and chemical technology was used to clean-up soil at the former Fruitgrowers Chemical Company site at Mapua.
The area was contaminated with DDT, dieldrin and other toxic waste.
The work took nearly four years and cost $8 million. The report was expected more than a year ago.
