Where one submission includes more than one application or request for relief, or where preliminary and final approval is sought simultaneously, the applicant shall be responsible for payment of the sum of all of the individually required fees and escrows. The Board may, however, waive any portion of the required escrows where it appears reasonably likely that the full amount normally required would not be necessary. The applicant would not be relieved of the obligation to post the full required escrow amounts should the Board subsequently determine it necessary. Also, the applicant would still remain responsible for paying the actual amount of Board expenses and costs.