ESC gap between the excavation phase and construction phase

I am working on a 2-building campus project where an ESC plan was implemented during excavations phase (bulk earthworks) of the whole campus. The first buildings construction will start now with a new contractor implementing the ESC measures for the site only surrounding this First building. Construction of the 2nd building is intended to only start at a much later stage, therefore there will be a large gap between the excavation phase and construction phase (a predication of possibly 1/2 years). Once a different contractor starts on the 2nd site he will implement the ESC measures during construction phase for the portion of that 2nd site. Would the ESC plan measures have to be continually implemented during 2nd sites stand still? Who would be expected to implement that? And how would we submit that for LEED?