We have a project with substantial amount of Gravel. It's part of a soil profile and also for general new construction. It's been specified in the civil scope Division 31. Should we include this (would actually help, since the extraction site is 20 miles away) or would this be rejected because it's not really in Divisions 2-10? Could maybe be part of 2 for LEED purposes, no? Also is there a list of materials certainly not to be included or explanation of materials that are in other divisions (e.g. concrete manhole is div31, but the concrete is div 3 for LEED) and how to handle that?