Brown and Caldwell Inc. 2/3/2022

Port Gardner Storage Facility Scope of Work 1-06-22 ventilation rates for each area or room, where appropriate. • Instrumentation and Controls - Document the instrumentation and control design criteria. This will include overall system control architecture; operator graphical interface requirements; controller distribution and control room dimension and location; and network and fieldbus media and protocols. • Combined Sewer Influent - Document design criteria specific to the influent to the facility. This will include description of the hydraulics and piping configuration required to deliver combined sewer flows to the facility. • Combined Sewer Debris Removal - Document design criteria specific to the screening and grit removal facility including overall general arrangement of channels and equipment; material handling processes and equipment; building modifications; and odor control collection and treatment(if any). • Combined Sewer Storage -Aeration Basins - Document design criteria specific to the conversion of the aeration basins to combined sewer storage. Criteria will include hydraulics and capacities;flushing system requirements; drainage system capacities;general arrangement of equipment and piping;fall protection systems; maintenance access requirements; and odor control collection and treatment(if any). • Combined Sewer Storage - Clarifiers - Document design criteria specific to the conversion of the clarifiers to combined sewer storage. Criteria will include hydraulics and capacities; flushing system requirements; drainage system capacities; general arrangement of equipment and piping;fall protection systems; maintenance access requirements; and odor control collection and treatment(if any). • Effluent Pump Station - Document design criteria specific to effluent pump station. Criteria will include hydraulic analysis; preliminary pump selections; general arrangement of pump station and supporting electrical building;foundation requirements; and maintenance access requirements. • Operations Building - Document design criteria specific to operations building(if included). Criteria will include architectural use programming; ingress/egress requirements;security provisions;fire protection requirements; control room general arrangement; interior/exterior surface treatments; and Washington State energy code requirements. Task Assumptions • TMs will be 5-10 pages each on average and included as appendix to the Basis of Design Report. Some TMs may be combined, as appropriate. • Basis of Design Report will be a summary of the approach and conclusion of the TMs and approximately 15-20 pages. • Architectural elevations and treatments and building mechanical elements and layouts will be generally deferred to intermediate design phase. Everett Responsibilities • Provide input on the recommended improvements. • Review and provide comments on the Basis of Design Report. • Participate in Basis of Design workshop. Meetings • Workshops and internal meetings covered under Phase 300. 21