R2012-92 ACCEPTING THE BID AND AUTHORIZING CONTRACT FOR 2012 TRENCHLESS LONG LINING REPAIRS

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Public Works Memorandum NO. 2012-31 DATE: April 4, 2012 TO: Honorable Mayor McElroy and City Council FROM: Ryan P. McCrady, City Manager Richard G. Marley, P.E., Public Works Director SUBJECT: 2012 Trenchless Long Lining Repairs City Project 2012-28 SUMMARY RECOMMENDATION: It is recommended that the City Council approve the attached resolution approving a contract in the amount of$416,674.25 for 2012 Trenchless Long Lining Repairs, City Project 2012-28, to Insituform Technologies USA, LLC, as the lowest qualified bidder and that the Mayor be authorized to execute the contract and the City Clerk to attest. PRIOR COUNCIL ACTION: The City Council approved the FY 2011-12 Capital Improvements Plan which allocated funds for this project. BACKGROUND: Sanitary Sewer Priorities Under the direction of the City Council, the Public Works Department has established four priorities to improve the City's sanitary sewer collection system as defined in the Sanitary Sewer Master Plan. 1. Critical Large Diameter Sewer Rehabilitation. 2. Sanitary Sewer Overflows Due to Inflow and Infiltration. 3. System Operation and Maintenance 4. Small Diameter Sewer Rehabilitation The 2012 Trenchless Long Lining Repairs project primarily addresses priority number 4 by repairing deteriorated sanitary sewer pipes. Secondly, the lining work also addresses priorities 2 and 3 by decreasing the amount of ground water infiltration into the system and reducing the operation and maintenance costs in the system. 2012 Trenchless Long Lining Project The purpose of this project is to repair structural deficiencies in the sanitary system with a minimum disruption to service and disturbance to the surface. Structural deficiencies include broken and missing pieces of pipe, offset pipe joints and voids. All of the project locations were derived from the annual televised inspection reports. Page I 1