Change Order Nos. 10, 11, 12 - WWTP Secondary Treatment Improvements Proj No 114-053 - Thieneman Construction Inc

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Notes: Change Order No. 12 addresses "Request for Proposal No. 3" which the City requested pricing for after Arcadis U.S. completed the design effort previously approved by the Board of Public Works. The cost for this proposal includes value engineering costs from by Thieneman Construction in conjunction with the proposal pricing supplied for Change Order No. 12. This proposal was requested as an additional scope of work. The Aeration Gallery Deck had originally been omitted from the project as a cost saving measure during design. Low costs during bidding provided an opportunity to address safety and access deficiencies while the General Contractor is mobilized and performing work at the Aeration Gallery. The resultant effort results in an increase in costs and will providing better access to the Aeration Gallery, Aeration Tanks 1-4 and Final Clarifiers 1-5. The funding sources for the construction of this project are the 2012 Sewer Bond (661-0630- 415-42-06) and Wastewater Equipment Purchases / Treatment and Disposal (642-0630-415-43- 66). This approval is subject to a 3rd Quarter Appropriation that will move bond funds from Sewer to Wastewater Treatment Plant for the purposes of paying a portion of Change Order No. 12. The expected split is $78,742.04 from the 2012 Sewer Bond and $404,668.96 from the Wastewater Equipment Purchases / Treatment and Disposal Account. If there are questions regarding the subject change order, please contact Al Greek (Ext. 4210) or Jacob M. Klosinski (Ext. 9496) at the Division of Utilities.