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WPCP Rehab P &S and Call for Bids 2 February 7, 2010 In October 2005, Malcolm Pirnie completed an assessment of the facility and recommended a number of upgrades. Improvements to the Electrical System, the Primary Flow Equalization, and the Clarifier were highly ranked based on weighted factors such as safety, operation permit renewability, reliability, and operability. Wiss. Janney, Elstner Associates then evaluated the concrete structures to determine if they could be reused to implement Malcom Pirnie's recommendations. The report recommended repairs to various structures to extend their useful lives. This report also identified portions of the existing Headworks and Primary Sedimentation Basins that may soon suffer significant structural distress without major structural repairs. Based on recommendations from the various studies, it became clear that a comprehensive strategy for addressing issues at the WPCP was needed. While the single project approach to addressing the issues at the WPCP has kept the plant functional, this approach does not guarantee reliability of the facility and may not comply with impending regulatory requirements. Staff revisited past studies and developed a comprehensive approach that will ensure compliance with impending compliance requirements and ensure the efficient use of funds. In 2008, Carollo Engineers was hired to develop a preliminary design based on current and future needs of the WPCP. Design included investigating strategies for rehabilitation to ensure that the facility remained operational during the work. The preliminary design report was completed in August 2009 citing all deficiencies previously noted in previous studies. Upon completion of the preliminary design phase. Carollo Engineers was retained to complete the final design documents. In later 2009. City staff submitted a grant application to the State Clean Water Resources Board (SCWRB), the overseer of the American Recovery and Reinvestment Act (ARRA) funds. Unfortunately, the project was not approved for ARRA grant funding. However, the SCWRB recommended that the City consider funding the project through a State Revolving Fund (SRF) loan, a relatively low interest rate loan. With authorization from the City Council, staff pursued the loan. Thus far, the City's application has been received both favorably and promptly and it is expected that the loan will be confirmed at the end of January 2011 in time for the call for bids. Analysis The project design is complete and ready for Council to call for bids for construction. The construction documents were designed to comply with the SRF funding requirements as well as current and anticipated regulatory requirements. The project will restore the capacity and function of the WPCP to 7.6 mgd ADW flow by improving various existing facilities and by adding new facilities. The major work associated with the project consists of the construction of a Headworks and Influent Pump Station, one Circular Clarifier, Primary Effluent Flow Equalization Facilities, a Fix Film Reactor (FFR), a FFR Lift Station, and Bid facilities for odor control. In addition the project will construct other support facilities, such as pump stations flow control structures and an electrical building.