18. HD-20-539 Authorize Executive Director to Execute Change Order No. 7 in the amount of $13,023; Authorize Executive Director to Execute Change Order No. 8 in the amount of $93,405; Ratify Change Order No. 9 in the amount of $184,740; and restore Executive Director's change order authority to $200,000 for the Pier E Administration Building Phase 3 Project, S J Amoroso Construction Co. (Construction Management - D. Lambrigger)