Reply #1: Fort Monroe, VA...currently on the BRAC list for closure [View All]

[Squatch]

"There is a large amount of unexploded ordnance buried throughout Fort Monroe and much of it pre-dates the Civil War - and it was put there by the Union Army. There are documented findings of ordnance buried as far down as ten feet on Fort Monroe and under structures that are on the National Register of Historic Places -- possibly including the Catholic Church on the Post. How do you clean buried ordnance under historically significant structures?"

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Although, I would hazard a guess that 140+ year old black powder munitions buried at or below sea level have been rendered largely inert.