Change Order No. 9 - WWTP Secondary Improvements - Project No. 114-053 - Thieneman Construction Inc

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INTER -OFFICE MEMORANDUM DEPARTMENT OF PUBLIC WORKS DIVISION OF UTILITIES 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. 9 Project No. 114-053: Wastewater Treatment Plant Secondary Treatment Improvements DATE: May 12, 2017 The Division of Utilities is requesting the Board of Public Works approval of Change Order No. 9 for Project No. 114-053 Wastewater Treatment Plant Secondary Treatment Improvements. Refer to attached documents for supporting details for claims. Change Order No. 9 addresses the following changes: COP 40 R1 -- Meter Vault Piping $ 7,897.00 COP 70 R1 — Miscellaneous Electrical Changes $ 6,917.00 COP 71 — Re -use Water Valve $ 920.00 COP 72 — Plug Drains Pipes $ 920.00 COP 73 — Repair Existing 60" RCP at Final Clarifier 7 $ 1,739.00 COP 74 — Final Electrical Allowance Reconciliation $ 8,691.00 NET INCREASE FOR CHANGE ORDER NO. 8 ITEMS $ 27,084.00 Original Contract Sum $11,885,000.00 Net change by previously authorized change orders $ 1,134,600.87 The contract sum prior to this change order $13,019,600.87 By this change order, the project amount increases by $ 27,084.00 The new contract sum including this change order is $13,046,684.87 This Change Order represents a total change of +0.22% Total change for the entire project +9.77% Time Extensions resulting from Change Order No. 9: Substantial Completion: +0 days Final Completion: +0 days 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 1 Treatment and Disposal (642-0630-415-43-66). 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.