Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to renew (Renewal #1) an existing engineering agreement with Stantec Consulting Services for the Large Diameter Sewer Assessment Big Walnut Trunk, Big Walnut Outfall and Rocky Fork Sanitary Outfall Project; CIP# 650725-100005. The purpose of this project is to perform additional sewer condition assessment of the Big Walnut Outfall in order to gain a better understanding of the corrosion damages, debris accumulation and structural integrity of the pipes. This work will take place in the Rickenbacker planning area.
1.1. RENEWAL INFORMATION:
1.1.1. Amount of additional funds to be expended: $360,295.18
Original Contract $1,255,706.74
Renewal #1 (Current): $ 360,295.18
Total Cost ($) $1,616.001.92
1.1.2. Reasons additional goods/services could not be foreseen:
The renewal scope includes additional investigations to conduct man entry inspections, insitu testing and sampling of the materials to better understand the current conditions and create a more accurate degradation curve. Due to the flow and air conditions within this sewer, a majority of this work will be completed by a specialty diving subcontractor. Once the sampling/testing is completed, Stantec will update and finalize the findings report so that the data can be entered into the Sewer Condition Rehabilitaion Evaluation and Assessment Model (SCREAM) for prioritization.
1.1.3. Reasons other procurement processes are not used:
Due to the scope of the project, much of the information and data that has already been gained by the consultant as part of this project would be lost. It would be costly to bring another firm up to date on the current conditions, access points and areas of concern.
1.1.4. How cost of modification was determined:
The costs for the renewal were deter...
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