LEED Site Boundary

Great forum and good information shared has answered a number of our questions, thanks! On the site boundary for an urban campus public assembly building we're still not 100% on how to draw it. This is a facility that is used occassionally (maybe 10 times a year). There is an adjacent parking lot that is used daily throughout the year to access classrooms and the medical center. On the few times a year when our facility will be used the lot is used for the facility so does it become part of our boundary, even though the main use for the parking lot is for other buildings? Our facility is open daily but the parking lot is not used to support the normal building operations, just event days. "The LEED project boundary must include all contiguous land that is associated with and supports normal building operations for the LEED project building, including all land that was or will be disturbed for the purpose of undertaking the LEED project" Hope I'm making sense here?