TRANSMITTAL LETTER FOR BOARD MEETING OF NOVEMBER 4, 2010
COMMITTEE ON PROCUREMENT
Mr. Richard Lanyon, Executive Director
Title
Authority to increase Contract 03-RFP-03 (73-161-CH) McCook Reservoir Overburden Removal Lawndale Avenue Solids Management Area, to Walsh Construction Company of Illinois, in the amount of $28,242.63, from an amount of $65,816,127.49, to an amount not to exceed $65,844,370.12, Account 401-50000-645620, Purchase Order 5000113
Body
Dear Sir:
On September 4, 2003 the Board of Commissioners passed an order authorizing the Director of Procurement and Materials Management to award Contract 03-RFP-03 (73-161-CH), to Walsh Construction Company of Illinois, in an amount not to exceed $58,770,500.00. The scheduled contract completion date was September 5, 2007.
As of October 22, 2010, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in the amount of $7,045,627.49 from the original amount awarded of $58,770,500.00. The current contract value is $65,816,127.49. The prior approved change orders reflect an 11.99% increase to the original contract value.
Item 1: An extra in the amount of $202,145.63 for the removal of an additional 32,343.30 cubic yards of overburden from the temporary road constructed between Lagoons 8 and 10.
The contractor originally proposed, as part of COR-14, to remove 72,000 cubic yards from the temporary road installed between Lagoons 8 and 10 as well as from adjacent areas. Upon excavation, it was determined that the top of rock elevations in the area of the road were lower than expected, resulting in an increased quantity of materials. The contractor’s final survey of the area showed that an additional 32,343.30 cubic yards above the estimated 72,000 cubic yards were excavated. The removal of the road and miscellaneous materials from the adjacent area became necessary as ramp 10 was placed back in service and Vulcan began to mine the area near the road.
The contractor submitted a cost proposal (COR-14A) in the amount of $202,145.63, which is based upon the previously approved unit cost of $6.25 per cubic. After reviewing the contractor’s proposal and performing an independent estimate, the engineer accepted the proposal (FL-272). The Engineering Department now recommends approval for the above extra work.
Item 2: A credit in the amount of $173,903.00 for the deletion of 28 acres of landscaping along the reservoir perimeter.
After completion of the overburden removal along the reservoir side slopes, the contractor planned to begin landscaping activities. However, the Army Corps of Engineers (Corps) determined that slope stabilization work would be required on portions of the reservoir side slopes instead of the landscaping. Since the Corps will perform the stabilization work in the future, the Engineering Department requested that the contractor provide a proposal to delete all side slope landscaping from the contract.
The contractor submitted a cost proposal (COR-13) for deleting 28 acres of landscaping along the reservoir perimeter in an amount of $173,903.00. After reviewing the contractor’s proposal and performing an independent estimate, the engineer accepted the proposal (FL-271). The Engineering Department now recommends approval for the above credit.
The above two change orders are in compliance with the Illinois Criminal Code since the changes are due to circumstances not reasonably foreseeable at the time the contract was signed, and are in the best interest of the District.
It is hereby requested that the Board of Commissioners authorize the Director of Procurement and Materials Management to execute two change orders to increase Contract 73-161-CH in an amount of $28,242.63 (.04% of the current contract value), from an amount of $65,816,127.49, to an amount not to exceed $65,844,370.12.
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 4, 2010
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