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5. Authorize the Director of Community Development to approve and execute contract change orders for a contingency amount not to exceed $208,300 (10% of the contract amount) for necessary related project work. 6. Authorize the City Manager to enter into the above - referenced construction contract and consultant agreements. 7. Authorize the City Manager to enter into an agreement with Caltrans for an amount not to exceed $230,000 to obtain temporary construction and permanent easements required to conduct the project. FINANCIAL STATEMENT Funding for the replacement of Sanitary Sewer Pump Station S -6 has been included in the Sewer Repair and Replacement Fund fiscal year 2001 -2002. Additional funding and expenses to date have resulted in a current balance of $3,636,720, including all encumbrances for the project. The current budget is sufficient to fund the subject construction and related construction support services for the project. BACKGROUND Sanitary sewer pump station S -6 was constructed in the 1960's. It is located at the northeast corner of the intersection of the Arroyo Mocho and Alamo Canal in northwest Pleasanton, adjacent to the West Las Positas Boulevard over - crossing of Interstate 1 -680. This pump station consists of a "metal can" dry well configuration pumping from an adjacent concrete wet well into a force main that runs northerly to the Dublin San Ramon Services District (DSRSD) treatment plant. The pumping equipment, electrical systems, and pump station building are all in poor condition, with the pumps currently operating with capacity problems under both dry weather and wet weather flow conditions. On January 16, 2007, City Council approved a contract with BKF Engineers in the amount of $79,879 to complete (1) an evaluation of the condition of wastewater pumping station S -6, and (2) to provide a pre- design study for a new pump station. The evaluation report was completed in March 2007 and confirmed that the existing pump station is in poor condition and is in need of replacement. The report also indicated that the existing pump station was capable of providing the necessary services for the next three years while the new pump station was being designed and constructed. The pre- design study was completed by BKF in June, 2007. This study evaluated various alternatives for the future S -6 pump station, and resulted in the City selecting a "wet well submersible pump station" as the best alternative for the replacement of the S -6 pump station. DISCUSSION Construction Bids Sealed bids for this project were opened on August 3, 2010. There were ten (10) bids received, ranging from the low bid amount of $2,083,000 to $2,805,000, as compared to the engineer's estimate of $1,964,000 for the project. (See Attachment 1 for Bid Summary.) Page 2 of 4