Fire Department Practice Burn

We have a project on a large campus which has involved demolition of over a dozen buildings. There has been a strong focus on waste diversion which has allowed us to achieve just over 95% thus far. One of the smaller remaining structures has gained the interest of local fire departments which have requested the opportunity to use it as for a training burn. They would ignite the building on site and use it for a day-long series of practice exercises. Presumably little but ash and foundation would be left at the end of the day. Has anyone encountered this situation in a LEED project before? Do we count this as diverted because the structure is slated for demolition and doesn't end up in a landfill? Entirely exclude it from the calculation on the basis that it isn't construction waste if used for a different purpose prior to demolition?