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PSA - Water Hydraulic Model Updates & Flow Testing – Black & Veatch Corporation
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PSA - Water Hydraulic Model Updates & Flow Testing – Black & Veatch Corporation
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10/27/2020 3:36:25 PM
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10/27/2020 3:36:03 PM
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Board of Public Works
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Contracts
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10/27/2020
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Page 1 <br />(Exhibit A – Engineer’s Services) <br />EJCDC E-500 Agreement Between Owner and Engineer for Professional Services <br />Copyright © 2008 National Society of Professional Engineers for EJCDC. All rights reserved. <br />This is EXHIBIT A, consisting of pages, referred to <br />in and part of the Agreement between Owner and <br />Engineer for Professional Services dated , . <br />Engineer’s Services <br />Article 1 of the Agreement is supplemented to include the following agreement of the parties. <br />Engineer shall provide Basic and Additional Services as set forth below. <br />PART 1 – BASIC SERVICES <br />A1.01 Study and Report Phase <br />A.Engineer shall: <br />Task 101 – Update Hydraulic Model Network <br />Engineer will update the Owner’s WaterGEMS hydraulic model network based on the following <br />information provided by the Owner: <br />1)Most recent GIS database export. <br />2)As-built plan sets from completed projects. <br />Because the hydraulic model was recently developed using the City’s GIS data exported on April <br />25, 2019, the network updates are expected to be minor. For purposes of developing a fee <br />proposal, an initial level of effort is estimated for making these updates. Model updates and <br />changes beyond this level of effort may need to be covered in an additional amendment. <br />Task 102 – Hydrant Flow Testing Plan and Assistance <br />Engineer will prepare a field testing plan to test hydrant flows at up to 12 locations through the <br />Owner’s service area. A Draft Field Testing Plan will be submitted to the Owner in PDF format <br />for review. A teleconference will be held with the Owner and Engineer to review the draft plan <br />with the Owner’s comments being incorporated into a Final Field Testing Plan deliverable. <br />Hydrant flow testing will be performed and completed by the Owner as indicated in the Final Field <br />Testing Plan with one day of onsite support from the Engineer’s senior modeling engineer. <br />Additional days of onsite support can be provided as a supplemental service. <br />Deliverables under this task will include a draft and final Field Testing Plan. <br />Task 103 – Steady State Model Calibration using Hydrant Flow Test Data <br />Engineer will use the hydrant flow test data to refine the calibration of the updated hydraulic <br />model. Engineer will create up to 12 steady-state model scenarios, one to simulate each of the <br />hydrant flow tests performed. Each scenario will be updated to reflect the boundary conditions <br />observed during the flow tests and the recorded flow will be applied to the appropriate hydrant
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