Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to enter a professional engineering agreement with Chester Engineers for the Blueprint Columbus - Kent / Fairwood Area project, CIP 650870-101202. The objective of this work is for the City to mitigate overflows of Designed Sewer Relief (DSRs) throughout the City’s system to the 10-year Level of Service (LOS). The City will evaluate and determine if this Level of Service is best achieved with strictly Inflow &Infiltration (I/I) elimination with Green Infrastructure (GI) or in combination with some gray infrastructure.
To accomplish this objective, the scope of work for this project will include all the requisite investigation, evaluation, formulation, and design to produce fully independent construction documents for the remediation of inflow and infiltration (I/I), green infrastructure (GI) technologies and other related activities and or documents necessary for project completion.
It should be noted that this project, and all current and past Blueprint Columbus projects, are heavily “exploratory” in nature. The processes that we are employing are constantly under review and or revision. Thus, a significant amount of general and specific scope revision is common. A perfect example of this is the need for lateral CCTV work (Task A3). After receipt of the proposals for this round of Blueprint Columbus, past Blueprint projects deemed that lateral inspection and field location data was of little value for cost savings. However, no projects containing this feature have been constructed. So, this not considered a final decision and is under review. So, all the associated costs for this portion of Task A3 for this project have not been removed; but changed to an “If Authorized” status. Furthermore, to ensure that costs in this item (Sanitary Lateral CCTV - Item 16) can cover the performance, contingency for these costs are also included in Task A20 “Contingency” (Item 1...
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