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 3 − Unless otherwise specified, meetings and workshops will be held virtually. − Construction period services begin with bid opening and conclude with final acceptance of the work by the City. − Services during contractor’s general warranty/guarantee period are not included. − City PM will provide timely, consolidated staff review comments on draft work products. City review periods will be identified in project schedules. − Owner’s Representatives include BC, its subconsultants, City staff, and City’s 3rd party CM firm that represent Owner’s interests in the Construction Contract that are employed or retained by the Owner. − Mileage for in person meetings and site visits are budgeted assuming the visits are to the Port Gardner site. − Meeting agendas and notes will be prepared by BC unless otherwise stated. − The City will provide any available plans, construction records, asset information, operational data, and related information that was not provided during development of the PGSF preliminary design and provide access to plant staff for workshops and interviews. − Past studies and reports, including condition assessments, form the basis upon which this scope of work has been planned. Additional condition assessment will be performed during demolition package construction. Discovery of new, unforeseeable, or latent issues associated with the existing site and facilities may result in need for project plan, scope, and budget changes. − Existing site structures identified as remaining in the preliminary design are assumed to be salvageable in their current form without foundation improvements or major structural modifications and support. − For budgeting purposes, it’s assumed the milestone schedule events will be as stated herein, with Amendment 1 period from August 2023 through December 31, 2027 (53 calendar months). − Labor and expense effort is inflated at 5% per annum for work taking place after 2023. − Work extent and sequence: The scope of work and budget allocation to each phase and task is based on a number of assumptions regarding how the work is envisioned to proceed. Given the nature of design work and services during construction, the actual level of effort required for each phase/task may require reallocation of funds from one phase/task to another. • Construction cost estimates will be prepared to industry standards but will be subject to many influences including, but not limited to, price of labor and materials, schedule impacts, unknown or latent conditions of existing equipment or structures, and time or quality of performance by others. These types of issues are difficult to forecast and are out of the control of BC and that actual costs may vary substantially from the estimates prepared by BC. BC is therefore unable to guarantee the accuracy of opinion of probable construction costs beyond that of industry standards. • Phase 670 Services During Construction for the Storage Facility Package were scoped and budgeted based on the project definition available at preliminary (30%) design. Scope and budget assumptions will be verified following Storage Facility Package final design and may differ from those provided herein. The City will provide an opportunity for adjustment for scope and budget shortfalls and/or overages based on the actual Storage Facility design prior to construction contract award.