TRANSMITTAL LETTER FOR BOARD MEETING OF OCTOBER 2, 2014
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 $160,246.00, from an amount of $71,926,043.27, to an amount not to exceed $72,086,289.27, 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, 2015.
As of September 19, 2014, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in an amount of $4,150,426.13 from the original amount awarded of $67,775,617.14. The current contract value is $71,926,043.27. The prior approved change orders reflect a 6.12% increase to the original contract value.
The contract documents include two concrete plugs at the South wall of the Thornton Reservoir; one to seal the Level 2 Haul Tunnel and one to seal the Level 3 Haul Tunnel. The haul tunnels were used during mining to move blasted rock from the North Lobe to the Main Lobe of the Thornton Quarry for processing. The plugs are necessary to isolate the reservoir from the quarry in the Main Lobe. Upon preparation of the tunnels for the plugs, it was discovered that the dimensions of the tunnels differed from the contract drawings. A detailed survey of the tunnels was performed and the designs of the concrete plugs were modified to conform to the existing dimensions.
Item 1: The contractor submitted an extra work cost proposal (CCO-036) in the amount of $119,192.00 for the modifications to the Level 3 tunnel plug. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 1305, 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.
Item 2: The contractor submitted an extra work cost proposal (CCO-037) in the amount of $41,054.00 for the modifications to the Level 2 tunnel plug. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 1340, 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 $160,246.00 (0.22% of the current contract value), from an amount of $71,926,043.27, to an amount not to exceed $72,086,289.27.
Funds are available in Account 401-50000-645620.
Requested, Catherine A. O'Connor, 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 October 2, 2014
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