AgdaPkt 2017-12-04 Joint SA PFA - Laserfiche WebLink

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6.2.A. - Page 1 REPORT To the Honorable Mayor and City Council From the City Manager December 4, 2017 SUBJECT Final Acceptance —Bair Island Storm Drain Pump Station Project RECOMMENDATION By motion, accept the Bair Island Storm Drain Pump Station Project, and authorize the release of bonds and the retention according to City procedures BACKGROUND On January 27, 2014, the City Council approved the Award of Contract for the Bair Island Storm Drain Pump Station (BISDPS) Project, to build a new storm drain pump station and demolish the existing storm drain pump station. The capacity of the pump station was increased to handle the storm water flows from a 100 year" storm event (a rain event that has a 1 % probability of occurring each year). Additionally, the new pump station location is more compatible with the traffic circulation planned for the area, which includes the newly constructed roundabout on Bair Island Road and a future vehicular bridge from Bair Island Road to Blomquist Street. ANALYSIS The contract was awarded for a base bid of $1,913,000.00 to Sanco Pipelines, Inc. of Los Gatos, CA. The project was successfully completed in accordance with the plans and specifications. Change orders were issued totaling $93,412.15. The final contract amount is $2,006,412.15, which is 4.88% more than the initially awarded contract amount. Change orders were due to unforeseen field conditions that resulted in additional work that was not within the original scope of work, but was necessary to complete the project. Construction was temporarily suspended for more than two years until a sanitary sewer force main operated by Silicon Valley Clean Water (SVCW), which within the immediate vicinity of the BISDPS project site, could be deactivated by SVCW.