Hi, if a project has a demolition subcontractor who hires a commingled waste hauler for some of the demolition debris, and then during the construction phase of the project the GC hires a commingled waste hauler for some of the construction debris -would that count as 2 streams?  What if it is the same hauling firm for both phases of the project but they are separate contracts hired by separate firms (GC & Demo sub)?