Explanation
1. BACKGROUND:
A. NEED: This legislation authorizes the Director of Public Utilities to enter into a planned modification of the professional engineering services contract with Stantec Consulting Services, Inc. in connection with the Early Ditch Relief Area I&I Project.
This work augments and extends the work already begun: cleaning, televising and condition assessment of selected sewers in the area (specifically storm); increased modeling efforts for selected area storm sewers and augmented sanitary sewer modeling services; and augmented sanitary and storm field investigation efforts for storm and sanitary modeling and system evaluation and recommendation efforts.
City engineers developing the project identified additional infrastructure decline of the original system and the effect poor storm drainage systems in the area would affect project design. As a consequence, significant additional flow monitoring, field investigations and modeling was required to assess the condition of the sanitary system. In so doing, it also has become evident that the success of this work is highly dependent on the understanding and investigation of the area storm sewers. To meet these requirements significant additional modeling and stormwater investigations are necessary.
B. Amount of additional funds to be expended: $1,325,501.35
Original Contract - $6,628,698.00
Modification No. 1 - $1,325,501.35
Future Modifications $ 00.00
Total Proposal Amount: $ 7,954,199.35
Estimated total contract amount with all existing and future modifications: $7,954,199.35
Reasons additional goods/services could not be foreseen:
A study was conducted that revealed there were deficiencies in the area's stormwater infrastructure this is severely hampering sanitary system performance. Thus, while not a major part of the original project scope, stormwater deficiencies would...
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