Overview
- The Osaka Aviation Bureau now pegs removal costs at about ¥630 million, roughly ¥190 million below what the government assumed in 2016.
- In 2016 the state applied a ¥819 million deduction based on a 19,520‑ton estimate and sold the site to Moritomo Gakuen for ¥134 million.
- The latest fieldwork examined 79 locations and found debris at 66 points, generally at depths of 0.5–3.5 meters.
- The Board of Audit in 2017 said the original basis was unclear and produced alternative totals of about 6,200 or about 14,000 tons.
- MLIT plans to sell the land and school building together with priority for municipalities and public‑interest bodies, following a contractor’s civil mediation bid to recover unpaid construction costs.