R2012-69 ACCEPTING THE BID AND AUTHORIZING CONTRACT FOR SOUTH WATER TREATMENT PLANT CONCRETE BASIN REPAIR

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Public Works Memorandum NO. 2012-27 DATE: March 28, 2012 TO: Honorable Mayor McElroy and City Council FROM: Ryan P. McCrady, City Manager Richard G. Marley, P.E., Public Works Director Keith D. Alexander, Director of Water Management SUBJECT: South Water Treatment Plant Concrete Basin Repairs City Project 2011-32 SUMMARY RECOMMENDATION: It is recommended that the City Council approve the attached resolution approving a contract in the amount of$205,408 for the South Water Treatment Plant Concrete Basin Repairs, City Project 2011-32., to Truesdell Corporation of Wisconsin, Inc. as the lowest qualified bidder and that the Mayor be authorized to execute the contract, and the City Clerk to attest. PRIOR COUNCIL ACTION: • April 18, 2011 - City Council approved Resolution R2011-44 authorizing an agreement with Black &Veatch Corporation to conduct a field inspection of the concrete basins due to observed concrete deterioration. • August 29, 2011 - City Council approved Resolution R 2011-138 authorizing an agreement with Black&Veatch to provide bid drawings, technical specifications and limited construction related services for this project. BACKGROUND: South Water Treatment Plant Settling Basin Inspection Since the completion of the South Water Treatment Plant in 1988 there has been no major concrete maintenance completed in the settling basin portion of the plant (see the attached drawing). In April, 2011, the City retained the services of Black and Veatch to perform a field inspection of the South Water Treatment Plant settling basins and access areas to address concrete deterioration. Inspections were conducted in May and June of 2011 and repair recommendations were submitted to the City. Concrete repair designs were prepared by Black and Veatch in late 2011 and early 2012 to address the concrete deterioration noted in the inspection report. Page 1