TRANSMITTAL LETTER FOR BOARD MEETING OF MAY 2, 2013
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 $96,539.18, from an amount of $71,754,839.32, to an amount not to exceed $71,851,378.50, 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 April 19, 2013, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in an amount of $3,979,222.18 from the original amount awarded of $67,775,617.14. The current contract value is $71,754,839.32. The prior approved change orders reflect a 5.87% increase to the original contract value.
A portion of the rock dam, immediately north of the drainage culvert in the southeast corner of the North Lobe of the Thornton Quarry, is below elevation -5.0 feet CCD. As a result, the grout curtain cannot be installed as intended and stored water could circumvent the grout curtain in this area. To provide continuous protection in the area of the culvert, up to elevation -5.0 feet CCD, remedial work is necessary. This change order is required to modify the area north of the drainage culvert so that the grout curtain can be extended through the area and up to a minimum of elevation -5.0 feet CCD. Remedial work includes excavating rubble to sound rock and backfilling the area with concrete to elevation -2.0 feet CCD.
The contractor submitted a cost proposal (CCO-028) for an extra in the amount of $96,539.18. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 1037, 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 $96,539.18 (0.13% of the current contract value), from an amount of $71,754,839.32, to an amount not to exceed $71,851,378.50.
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 May 2, 2013
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