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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 />Michael Schmidt, 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. 14 <br />Project No. 114-053: Wastewater Treatment Plant Secondary Treatment <br />Improvements <br />DATE: August 11, 2017 <br />The Division of Utilities is requesting the Board of Public Works approval of Change Order No. <br />14 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. 14 addresses the following changes: <br />COP 57 R4 — Return Activated Sludge Channel Cleaning <br />$ <br />3,846.00 <br />COP 66 R2 — Return Activated Sludge Channel Cleaning <br />$ <br />3,486.00 <br />COP 78 R1 — Return Activated Sludge Channel Cleaning <br />$ <br />4,409.00 <br />COP 80 — Return Activated Sludge Channel Cleaning <br />$ <br />4,272.00 <br />COP 81 0 West Entrance Culvert Replacement <br />$ <br />5,505.00 <br />COP 82 R1 — Return Activated Sludge Channel Cleaning <br />$ <br />2,855.00 <br />COP 83 R1 — Return Activated Sludge Channel Cleaning <br />$ <br />2,996.00 <br />COP 84 --Additional Asphalt Drive Overlay <br />$ <br />5,625.00 <br />COP 85 — Inforeseen Demolition at Final Clarifier 4 & 5 Influent Gates <br />$ <br />381.00 <br />COP 86 — Sludge Removal Return Activated Sludge Channel Cleaning $ <br />25,514.00 <br />COP 87 — Water Line Abandonment, East of Aeration Tanks <br />$ <br />5,489.00 <br />Unused Unit Price Quantity Deductions (See Attached Summary) <br />($131.867.40) <br />NET DECREASE FOR CHANGE ORDER NO. 14 ITEMS <br />($ <br />66,489.40) <br />Original Contract Sum $11,885,000.00 <br />Net change by previously authorized change orders $ 2,103,104.87 <br />The contract sum prior to this change order $13,988,104.87 <br />By this change order, the project amount decreases by ($ 66,489.40) <br />The new contract sum including this change order is $13,921,615.47 <br />This Change Order represents a total change of -0.56% <br />Total change for the entire project +17.14% <br />Time Extensions resulting from Change Order No. 14: <br />Substantial Completion_ 0 days <br />Final Completion: 0 days <br />