Brown and Caldwell, Inc. 10/28/2025

WPCF Headworks Replacement Project Scope of Work 20 The design shall assume 2024 International Building Code and American Society of Civil Engineers(ASCE) 7-22 code standards. City Responsibilities None Meetings Weekly coordination meetings with BC Bi-weekly coordination meetings with geotechnical engineer Up to four, one-hour workshops during the alternatives analysis phase Up to three coordination meetings during the basis of design phase One workshop during the site preparation package design phase Work Products Structural alternatives analysis workshop materials Deliverables Support development of the Alternatives Analysis Report (Phase 400) and Basis of Design Report (Phase 450) Structural Design Criteria TM Site Preparation Design Package o Preliminary design drawings and specifications o Final design drawings and specifications o Responses to bidder questions o Conformed structural drawings o Up to five site visit reports documenting structural observations o One final memorandum summarizing structural observations. Memorandum will be written in accordance with Section 1704.6 of the 2024 IBC. o Site preparation package structural record drawings. Headworks Design Package o Preliminary design drawings, up to 30 sheets, and specifications o Intermediate design drawings, up to 50 sheets, and specifications o Final design drawings, up to 70 sheets, and specifications o Responses to bidder questions o Conformed structural drawings Task 320 HWA GeoSciences Objective: HWA GeoSciences Inc. will provide geotechnical engineering services to support the design phase of the Everett WPCF headworks replacement project. scope includes project management, field explorations, geotechnical engineering analysis, and reporting. The work will inform the project design for the alternatives analysis, basis of design, and subsequent detailed design for both the site preparation and headworks packages. The following section summarizes