How should we implement the ESC/Storm Water Pollution Plan in case that the client does not have one GC but various suppliers for various construction phases. In the phase of excavation and groundworks there was only one company with which we prepared the plan. Now during the upper construction works there are about 5 to 18 various companies in one moment on site. I thought I would prepare the plan and all following Revisions and representatives of each of these companies would accept it in writing - is this ok? Which other procedure would you suggest? Is it possible that every supplier has its own waste bins, spill kit etc. for which he is responsible? Do you have any experience with such procedure? Thanks