Change Order No. 7 - WWTP Secondary Treatment Project No 114-053 - Thieneman Construction Inc.

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INTER -OFFICE MEMORANDUM DEPARTMENT OF PUBLIC WORKS DIVISION OF ENVIRONMENTAL SERVICES TO: Members of the Board of Public Works Eric Horvath, Director of Public Works Michael Schmidt, Board of Public Works Attorney FROM: Al Greek, Director of Utilities Jacob M. Klosinski, Assistant City Engineer SUBJECT: Agenda Request Form — Change Order No. 7 Project No. 114-053: Wastewater Treatment Plant Secondary Treatment Improvements DATE: January 12, 2017 The Division of Utilities is requesting the Board of Public Works approval of Change Order No. 7 for Project No. 114-053 Wastewater Treatment Plant Secondary Treatment Improvements. Refer to attached documents for supporting details for claims. Change Order No. 7 addresses the following changes: Provide Blind Flange for Aeration Tank 4, Pass 4 Drain $ 1,349.00 Patch HOBAS Pipe and Fill for Grout $ 4,360.00 Leak Test Launder Troughs $ 3,832.00 Fiber Optic Patch Panels Reuse, Old Reuse and Disinfection Bldg. $10,493.00 Scum Pump Station, 40 Amp Breaker $ 1,706.00 Gallery #4 MCC Modifications, Neutral Bar (Electrical Insp. Req'd) $11,513.00 Gallery #4, Electrical Transformer Relocation, per IM/AEP $13,077.00 NET INCREASE FOR CHANGE ORDER NO. 7 ITEMS $ 46,330.00 Original Contract Sum $11,885,000.00 Net change by previously authorized change orders $ 859,365.87 The contract sum prior to this change order $12,744,635.37 By this change order, the project amount increases by $ 46,330.00 The new contract sum including this change order is $12,790,965.87 This Change Order represents a total change of +0.39% Total change for the entire project +7.62% Time Extensions: Required due to MCC Modification required by City Electrical Inspector. Refer to attached paperwork for time extension. The primary funding sources for the construction of this project are the 2011 Sewer Bond (659- 0630-415-42-06), 2012 Sewer Bond (661-0630-415-42-06), and Wastewater Equipment Purchases / Treatment and Disposal (642-0630-415-43-66). If there are any questions regarding the subject change order, please contact Al Greek (Ext. 4210) or Jacob M. Klosinski (Ext. 9496) at the Division of Utilities.