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HomeMy WebLinkAboutItem 1b: Contract with MNR Construction, Inc. for the Baldwin Ave, & Old Ranch Rd. sewer improvmentSTAFF RFPORT Public Works Services Department DATE: May 15, 2012 TO: Mayor and City Council FROM: Tom Tait, Public Works Services Director Prepared by: Ken Herman, Deputy Public Works Services Director Mark Rynkiewicz, Associate Civil Engineer SUBJECT: AUTHORIZE THE CITY MANAGER TO EXECUTE A CONTRACT WITH MNR CONSTRUCTION, INC. FOR THE BALDWIN AVENUE AND OLD RANCH ROAD SEWER CAPACITY IMPROVEMENT PROJECT IN THE AMOUNT OF $413,620 AND INCLUDE A 10% CONTINGENCY Recommendation: Approve SUMMARY The 2006 Sewer Master Plan Update evaluated the adequacy of the City's wastewater collection system and identified sections of the system which are unable to handle current and projected wastewater demands. Baldwin Avenue (between Huntington Drive and Fairview Avenue) and Old Ranch Road (near the intersection of Victoria Drive) are two sections which were identified as needing improvements. It is recommended that the City Council authorize the City Manager to execute a contract with MNR Construction, Inc. for the Baldwin Avenue and Old Ranch Road Sewer Capacity Improvement Project in the amount of $413,620 and include a 10% contingency. BACKGROUND On May 2, 2006, The State Water Resources Control Board (State Board) adopted the General Waste Discharge Requirement (WDR). The WDR applies to all public collection system agencies in California and requires the City of Arcadia to prepare a Sewer System Management Plan (SSMP). The SSMP describes the activities the City uses to manage the wastewater collection system effectively and has the primary objective of eliminating all sewer system overflows. A component of the SSMP is the Sewer Master Plan. The Sewer Master Plan addresses the needs of the City's sewer system through the Year 2026 and establishes the maintenance and improvement framework the City uses to make decisions on future operational goals and system capital improvement projects. Mayor and City Council May 15, 2012 Page 2 of 3 DISCUSSION The 2006 Sewer Master Plan Update identified the existing sewer piping at Baldwin Avenue (between Huntington Drive and Fairview Avenue) and at Old Ranch Road (near the intersection of Victoria Drive) as being unable to handle current and projected wastewater demands during heavy storms. The sewer lines at both of these locations were originally installed in 1949. Sewer systems need air to flow in and out of manholes and other vents in order to function properly. When storm runoff flows on the streets, some of the water flows into the sewer system through these vents along with a smaller percentage entering the system through cracks or joints in the pipe. This additional flow increases the potential for sewer systems to back up during rain storms and overflow into the streets or storm drains. Replacement of the existing sewer pipes at both locations with larger pipes will accommodate the increase in demand and reduce the potential for sewer spills or overflows. The replacement of the sewer mains at Baldwin Avenue and Old Ranch Road were originally scheduled as CIP projects in separate fiscal years. However, it was felt that combining both projects and bidding them together would result in a savings in mobilization costs and the economy of scale for materials and work. The engineer's estimate for the combined work was $438,900. Notices inviting bids were published in the adjudicated paper and bid packages were distributed to area contractors. The City Clerk publicly opened five (5) sealed bids on April 24, 2012. The following bid results are listed for the City Council's review and consideration: RANK FIRM LOCATION BID AMOUNT 1 MNR Construction, Inc. Baldwin Park, CA $413,620 2 Atlas Underground, Inc. Pomona, CA $449,027 3 Garcia Juarez Const. Corp. Brea, CA $455,875 4 C.P. Construction Co., Inc. Ontario, CA $516,305 5 SND Construction, Inc. Arcadia, CA $624,050 Bid documents were carefully reviewed for content and the contractors' backgrounds and recent projects were investigated for competency. It has been determined that MNR Construction, Inc. is the lowest responsible bidder to perform the construction of this project. Therefore, it is recommended that the City Council authorize the City Manager to execute a contract with MNR Construction, Inc. for the Baldwin Avenue and Old Ranch Road Sewer Capacity Improvement Project in the amount of $413,620 and include a 10% contingency. Mayor and City Council May 15, 2012 Page 3 of 3 ENVIRONMENTAL ANALYSIS The Baldwin Avenue and Old Ranch Road Sewer Capacity Improvement Project involves the replacement of existing utility systems and is therefore categorically exempt per Section 15302(c) of the California Environmental Quality Act. FISCAL IMPACT The Baldwin Avenue Sewer Main Project was budgeted in the 2010-2011 Capital Improvement Program (CIP) for construction costs of $435,000. The Old Ranch Road Sewer Main Project was budgeted in the 2011-2012 CIP for construction costs of $104,000. The funding source for these projects is through the Sewer Enterprise Fund. The total cost of $413,620 plus 10% contingency is within the adopted budget for the Project. RECOMMENDATIONS 1. Award a Contract to MNR Construction, Inc. for the Baldwin Avenue and Old Ranch Road Sewer Capacity Improvement Project in the amount of $413,620 and include a 10% contingency. 2. Authorize the City Manager and City Clerk to execute a contract in a form approved by the City Attorney. 3. Waive any informality in the bid or bidding process. Dominic Lazza TT:KH:MR Attachment City Manager CITY OF ARCADIA SIER FOOTHII PROJECT LOCATIONS U • AL BALDWIN AVENUE SEWER AND OLD RANCH ROAD SEWER CAPACITY IMPROVEMENT PROJECT PROJECT LOCATION MAP