We await new construction at the Palisades Rec Center in DC starting perhaps today Monday, July 11, 2017. Items from this area recovered yesterday.
I eventually dug down about 4 feet, only to uncover a cast iron sewage/storm pipe. My choice of digging site coincided with an already trenched portion of the park. The area destined to house the new Rec Center indeed appears to be heavily disturbed earth. I will closely monitor the excavation in the coming weeks.