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EXHIBIT A <br /> SCOPE OF SERVICES <br /> Background <br /> 1. The City of Everett, Washington (City)selected HDR Engineering, Inc. (HDR)to provide <br /> engineering analysis, design, and permitting assistance to expand the Final Effluent North <br /> (FEN) pump station capacity at the Water Pollution Control Facility(WPCF), as well as <br /> replacing the chlorination facilities. The FEN pumping system is an integrated process that <br /> combines open channel hydraulics, chlorination, dechlorination, effluent pumping, and <br /> discharge. All components of the system must work together to produce a fully treated <br /> effluent at the desired flow rate. <br /> 2. During Phase 1 and Phase 2, HDR completed a study on the FEN pumping system and <br /> hydraulics as well as a basis of design for the Chlorination Building. Final design and bid <br /> documents were produced, as well as a base scope for services during construction (SDC). <br /> 3. The intent of this scope of services is to provide an amendment to adjust the project budget <br /> to accommodate various additional scope items already completed as part of the design and <br /> bidding process as authorized by the City(to maintain the overall project <br /> schedule/construction) as well as account for added scope related to additional services <br /> during construction The final goal is to provide an adequate budget to complete the new and <br /> existing SDC tasks and complete the project through construction completion. <br /> Scope of Services <br /> Task 100 Project Management <br /> This amendment closes this task in its entirety and reallocates remaining fee. <br /> Task 200 Investigation Phase <br /> This amendment closes this task in its entirety and reallocates remaining fee. <br /> Task 300 Conceptual Chlorine Building <br /> This amendment closes this task in its entirety and fee adjusted based on fee invoiced to date. <br /> Task 400 Geotechnical Services <br /> This amendment closes this task in its entirety and reallocates remaining budget. <br /> Task 500 Surveying Services <br /> This amendment closes this task in its entirety and fee increased based on fee invoiced to date. <br /> Task 600 Permit Acquisition & Environmental Services <br /> This amendment closes this task in its entirety and reallocates remaining budget. <br /> City of Everett—WPCF FEN Amendment No.4 1 Scope of Services <br />