Task Order No. 3 to Master Services Agreement - Stantec Consulting Services Inc - Green Stormwater Infrastructure Master Plan

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Attachment A TASK ORDER 03 CSO LTCP GREEN STORMWATER INFRASTRUCTURE MASTER PLAN DEVELOPMENT This Task Order is made this the .Ll day of / ,y-' , 2018, by and between the Board of Public Works, City of South Bend, Indiana ("CLIENT") and Stantec Consulting Services Inc. ("CONSULTANT") pursuant to the terms and conditions set forth in the Master Services Agreement executed between the parties on the 1 Ith day of April, 2017, ("Agreement"), which incorporated this Task Order by reference. I . The CONSULTANT Job Number for this Task Order is 4jk 3 The CONSULTANT Contract Number and Job Number shall be referenced in each invoice submitted by CONSULTANT to CLIENT under this Task Order. CLIENT seeks to develop a master plan for the effective implementation of green stormwater infrastructure within targeted combined sewer overflow (CSO) basins to significantly reduce and/or potentially eliminate CSOs thereby reducing the need for construction of consolidation sewers as part of the CSO Long-term Control Plan (LTCP). Stantec will coordinate closely with its partner firms (American Structurepoint, EmNet, LimnoTech) for the delivery of this project. American Structurepoint will serve as the primary technical lead (TECHNICAL LEAD) for services under this task order. 2. The Services performed by CONSULTANT under this Task Order are as follows: Task 3.1: Project Initiation --- CONSULTANT will facilitate a meeting of the project team and invited CLIENT staff to kick off the project and establish a preliminary meeting schedule, project team communication process, and a list of key stakeholders (if any) for the project. TECHNICAL LEAD will lead the discussion of technical issues including vision for green infrastructure, support for green infrastructure, and anticipated obstacles for the project. Client Provided Items None Deliverables: Kick off meeting agenda Project schedule Kick off meeting summary List of key stakeholders (if necessary) Task 3.2: Confirm GSI Design Objectives — CONSULTANT will review previous modeling of the City's sewer system and perform supplemental simulations to determine an acceptable release rate from each of 9 CSO basins targeted for GSI implementation. The acceptable release rate will be the peak rate of discharge that the interceptor system can accept from the basin under design storm conditions without causing a CSO to the river with a specific program of improvements in place. The release rate determined will serve as a target peak flow limit to be achieved through the implementation of specific GSI measures. CONSULTANT will generate flow hydrographs for the trunk sewer in each basin at its connection to the regulator that diverts flow to the interceptor or the CSO outfall. One hydrograph will represent existing conditions; a second hydrograph will establish the target release rate for the basin. Client Provided Items None