Brown and Caldwell, Inc. 9/27/2023 Amendment 1

Amendment 1 PSA with Brown and Caldwell for Port Gardner Storage Facility Project Exhibit A Scope of Work 2 Scope of Work Summary and Work Breakdown Structure The scope of work for the PGSF Project (Project) herein includes 9 additional phases and 2 original phases for which budget has been augmented identified in the following table. The additional phases are integrated into the original Agreement work breakdown structure for the Port Gardner Storage Facility Project. Amendment 1 Budget Augmented Phases and New Phases Phase 100 Project Management (augmented) Phase 270 Demolition Package Services During Construction Phase 400 Equipment Procurement Phase 410 Subconsultants Phase 420 Hydrologic & Hydraulic Modeling Phase 450 Permitting Support Phase 500 Intermediate Design Phase 600 Final Design Phase 650 Bid Documents and Services During Bidding Phase 670 Storage Facility Package Services During Construction Phase 700 Unanticipated Services (augmented) Exhibit B – Budget provides additional work breakdown into additional subphases and tasks for project tracking and control. Scope Descriptions The phase descriptions below include an objective statement, activities/approach, task assumptions, and work products that designate which service or item will be provided by the BC team. City staff activities required to complete tasks are noted where applicable. Scope assumptions applicable to the overall Project are described below. Project-level Assumptions • BC is relying on information provided by the City that is assumed to be correct. Unless otherwise stated, BC will not independently verify or confirm the information provided. • Making significant alterations to design that are inconsistent with the decisions made in the Preliminary Design effort may require additional effort by the design team. Significant alterations are considered as changes to the design or documents that require more than 20 hours of design team time to complete at each design review milestone. This allowance applies to each design milestone and shall be based on the design team’s estimate of time required to complete the work as agreed to and negotiated between the City and BC. • All deliverables will be delivered in electronic formats, with no printed copies. Bid documents will be digitally signed and sealed. City, Contractors, and 3rd party CM firms shall be responsible for hard copy reproduction of bidding and construction documents. BC will be responsible for hard copy reproductions for their own purposes. − The City’s PM will coordinate location for, and City staff participation in project meetings and workshops where noted. − Engineer, where used herein, shall mean Brown & Caldwell and its subconsultants.