AgdaPkt 2011-02-07 - Laserfiche WebLink

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6.2A REPORT Page 1 To the Honorable Mayor and City Council From the City Manager February 7, 2011 SUBJECT Final Acceptance — Sanitary Sewer Pump Station No. 12 Improvements Project RECOMMENDATION Accept, by motion, the Sanitary Sewer Pump Station No. 12 Improvements Project and authorize the release of bonds and retention according to city procedures. BACKGROUND On April 12, 2010, Council awarded the construction contract for the rehabilitation of Sanitary Sewer Pump Station No. 12 to Casey Construction, Inc. The pump station is located near the intersection of Marine Parkway and Shell Parkway in Redwood Shores. The wastewater flows from this pump station is conveyed by multiple pump stations from the northwest quadrant of Redwood Shores. Pump Station No. 12 is an intermediate facility that delivers wastewater to Pump Station No. 10 which then pumps to South Bayside System Authority (SBSA) wastewater treatment plant. Rehabilitation of this pump station improved pumping efficiency, ease of operation, the safety of the facility, and increased the wet well volume for storage. A permanent emergency standby engine generator was included in the design to replace a portable engine generator to ensure continuous service of the pump station in the event of power failure, larger pumps and up to date control system were installed, and the new design eliminated maintenance activities in confined space. Construction started in May 2010 and was completed within one hundred thirty (130) calendar days (as scheduled) in September 2010. This acceptance was delayed pending the contractor's submission of the final progress payment for approval received in December 2010. The contract was awarded for a base bid of $420,325.00. The project was successfully completed in accordance with the plans and specifications. Change orders were issued totaling $29,918.43. The final contract amount is $450,243.43 which is 7.11% more than the initially awarded contract amount. Change orders resulted from additional work required to remove existing embedded electrical conduit and pipe flanges exposed during deconstruction that were not shown on the record drawings, and to remove existing concrete encasement and hinge slab that were not shown on the record drawings, and for additional grading and paving work to the area surrounding the pump station and valve vault. ALTERNATIVES Council may choose not to accept the project and /or to authorize the release of bonds and retention which would be contrary to the terms of the contract, prior Council action, and the public contracting code. FISCAL IMPACT Sufficient funding for this construction agreement was previously approved as Sewer Fund Capital Projects — Pump Station 12 Renovation. ENVIRONMENTAL REVIEW As the lead agency, City of Redwood City has determined that acceptance of Sanitary Sewer Pump Station No. 12 Improvements Project does not constitute a Project as defined under CEQA.