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INTER -OFFICE MEMORANDUM <br />DEPARTMENT OF PUBLIC WORKS <br />DIVISION OF UTILITIES <br />TO: Members of the Board of Public Works <br />Eric Horvath, Director of Public Works <br />Clara McDaniels, Board of Public Works Attorney <br />FROM: Al Greek, Director of Utilities <br />Jacob M. Klosinski, Assistant City Engineer <br />SUBJECT: Agenda Request Form — Change Order No. 16 <br />Project No. 114-053: Wastewater Treatment Plant Secondary Treatment <br />Improvements <br />DATE: December 18, 2017 <br />The Division of Utilities is requesting the Board of Public Works approval of Change Order No. <br />16 for Project No. 114-053 Wastewater Treatment Plant Secondary Treatment Improvements. <br />Refer to attached documents for supporting details for the subject work. <br />Change Order No. 16 addresses the following changes: <br />COP 98 — Enviromix and Stop Log Plates <br />COP 99 — Additional 12' Crack Repair <br />COP 100 —Add Three (3) Concrete Bridges at Aeration Gallery <br />COP 101 — Shutdown 11 Additional Sludge Removal <br />COP 102 — Remove 24" Aeration Tank 1 Valve <br />COP 103 — Change Order No. 15 Scrivener's Error Correction <br />COP 104 — PCO #12 Link Seal Credit <br />NET INCREASE FOR CHANGE ORDER NO. 16 ITEMS <br />Original Contract Sum <br />Net change by previously authorized change orders <br />The contract sum prior to this change order <br />By this change order, the project amount increases by <br />The new contract sum including this change order is <br />This Change Order represents a total change of <br />Total change for the entire project <br />Time Extensions resulting from Change Order No. 16: <br />Substantial Completion: <br />Final Completion: <br />$ 5,939.00 <br />$ 840.00 <br />$ 4,483.00 <br />$ 6,926.00 <br />$ 4,471.00 <br />($ 30.00) <br />$____3,276.00) <br />$ 19,353.00 <br />$11,885,000.00 <br />$ 2,034,865.47 <br />$13,919,865.47 <br />$ 19,353.00 <br />$13,939,218,47 <br />+0.16% <br />f 17.28% <br />0 days <br />0 days <br />