TRANSMITTAL LETTER FOR BOARD MEETING OF NOVEMBER 17, 2011
COMMITTEE ON Procurement
Mr. David St. Pierre, Executive Director
Title
Authority to increase Contract 04-201-4F Tollway Dam, Grout Curtain and Quarry Plugs, Thornton Composite Reservoir, Calumet Service Area, to F.H. Paschen, S.N. Nielsen and Associates LLC, and Cabo Construction Corporation, Joint Venture, in an amount of $437,150.00, from an amount of $71,015,717.76, to an amount not to exceed $71,452,867.76, Account 401-50000-645620, Purchase Order 5001105
Body
Dear Sir:
On December 3, 2009, the Board of Commissioners authorized the Director of Procurement and Materials Management to award Contract 04-201-4F, Tollway Dam, Grout Curtain and Quarry Plugs, Thornton Composite Reservoir, Calumet Service Area, to F.H. Paschen, S.N. Nielsen and Associates LLC, and Cabo Construction Corporation, Joint Venture, in an amount not to exceed $67,775,617.14. The scheduled contract completion date is May 25, 2014.
As of November 4, 2011, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in the amount of $3,240,100.62 from the original amount awarded of $67,775,617.14. The current contract value is $71,015,717.76. The prior approved change orders reflect a 4.78% increase to the original contract value.
The contract specifications require borehole deviation surveys using a verticality probe to be conducted to verify that boreholes are within the allowed tolerance for inclination and orientation from the ground to the bottom of the hole. In addition rock cores are required to verify that grouting has reduced the rock permeability to target levels. This change order is for use of a new tool, called an optical televiewer that can provide both the inclination and orientation required for the borehole deviation surveys as well as a photographic record of the borehole walls to determine if additional grout holes are required in a cost effective manner. The use of this tool will eliminate the need to increase the quantity of verification holes.
The contractor submitted a cost proposal (CCO-014) for an extra in an amount of $437,150.00, which includes a $217,500.00 increase to the quantity of unit price bid item 22A - Drilling Rock - Initial, Primary, Secondary and Fan Holes by 8,700 linear feet, and $219,650.00 as a new unit price item for the deviation survey using the optical televiewer. The increase to bid item 22A is required to create the holes that the optical televiewer is anticipated to survey. Both of these items are unit price items and the contractor will be paid for the actual quantity of work performed, not to exceed the total value of this change order, $437,150.00. The engineer reviewed the proposal, found it reasonable, and stated via correspondence 577, that the Engineering Department would recommend its approval.
This change order is in compliance with the Illinois Criminal Code since the change is germane to the contract.
It is hereby recommended that the Board of Commissioners authorize the Director of Procurement and Materials Management to execute a change order to increase Contract 04-201-4F in an amount of $437,150.00 (0.62% of the current contract value) from an amount of $71,015,717.76 to an amount not to exceed $71,452,867.76.
Funds are available in Account 401-50000-645620.
Requested, Kenneth A. Kits, Director of Engineering, WSS:KMF
Recommended, Darlene A. LoCascio, Director of Procurement and Materials Management
Respectfully Submitted, Barbara J. McGowan, Chairman Committee on Procurement
Disposition of this agenda item will be documented in the official Regular Board Meeting Minutes of the Board of Commissioners for November 17, 2011
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