Brown and Caldwell Inc. 2/3/2022

Port Gardner Storage Facility Scope of Work 1-06-22 • Develop a short technical memo detailing the findings of the structural and process mechanical condition assessment of the neutralization basins. Task Assumptions • Geotechnical and survey work products will be provided in a digital format. • Subconsultants and BC condition assessment staff will have access to the site as necessary to complete worked described under Phase 210. • North American Vertical Datum of 1988 (NAVD 88) will serve as the standard project datum. • All confined space entry plans, permits, and equipment are the responsibility of BC and the subconsultants. Everett Responsibilities • Provide the necessary staffing and resources to support field work conducted by BC and subconsultants. • City to jet pipelines prior to condition inspection. Pipeline inspection assumes less than 10% or less of blockage/mud/debris. • Review draft and final geotechnical report. • Review pipeline condition assessment report. Meetings • Two site visits by geotechnical subconsultant and one BC staff member. • Two site visits by survey subconsultant and one BC staff member. • Two site visits by pipeline investigation subconsultant and one BC staff member. • Two site visits by BC structural and process mechanical leads. • Two site visits by material testing subconsultant. Work Products • Draft geotechnical report for submittal to the City for review and comment. • Final geotechnical report addressing comments from the City and Design team. • Surveyor to provide electronic drawing files with surveyor's sign and seal. Electronic deliverables to include 2D base map and 3D surface DRM of the Kimberly-Clark site. • 3D point cloud and model of existing conditions. • Pipeline inspection condition assessment report. • Test reports from material testing subconsultant. • 5 to 10 page Technical Memo outlining the details of the structural and process mechanical neutralization basin condition assessment. Phase 220 - Demolition Alternatives Analysis Objective Establish the basis for project elements prior to proceeding into the basis of design phase. The demolition Alternatives Analysis solidifies the site demolition plan so that design can move forward with clear focus and mutual understanding to avoid rework.The existing PGSF Facility Plan will serve as a reference to inform the alternatives reviewed under this phase. In addition, BC will collaborate with the City planning team to establish demolition design criteria for each discipline and conduct cost benefit analyses that include capital, 0&M, risks, and benefits. 9