What I suggest is that you calm down, and wait for the professionals to come up with a solution. You have a potentially huge situation here involving environmental remediation and engineering. Things should be done properly, or the NY EPA could own you. I think anyone who needs to ask a bunch of anonymous people in the internet what to do about such a problem is showing exceedingly poor judgement.Yes we have hired an engineer and a geotech engineer, the questions arise due to my im[atience and my "need to know Yesterday" mind set. The site is primarily for heavy commercial/Office and so the fill not being compacted is a pretty big deal for the footings and slab.