TRANSMITTAL LETTER FOR BOARD MEETING OF SEPTEMBER 16, 2010
COMMITTEE ON PROCUREMENT
Mr. Richard Lanyon, Executive Director
Title
Authority to increase Contract 04-125-3S (Re-Bid), Upper Des Plaines Pumping Station Rehabilitation and TARP Connection, Stickney Service Area, to F.H. Paschen/S.N. Nielsen and Associates LLC, in an amount of $50,909.24, from an amount of $8,940,547.66, to an amount not to exceed $8,991,456.90, Accounts 401-50000-645600 and 645700, Purchase Order 5000812
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Dear Sir:
On December 20, 2007, the Board of Commissioners authorized the Director of Procurement and Materials Management to award Contract 04-125-3S (Re-Bid), Upper Des Plaines Pumping Station Rehabilitation and TARP Connection, Stickney Service Area, to F.H. Paschen/S.N. Nielsen and Associates LLC, in an amount not to exceed $11,756,000.00. The scheduled contract completion date was April 8, 2009.
As of September 3, 2010, the attached list of change orders has been approved. The effect of these change orders resulted in a decrease in the amount of $2,815,452.34 from the original amount awarded of $11,756,000.00. The current contract value is $8,940,547.66. The prior approved change orders reflect a 23.95% decrease to the original contract value.
A portion of the contract involved the installation of a temporary bulkhead system to isolate the Upper Des Plaines Pumping Station during construction. Upon installation of the bulkhead, it was realized that a large amount of surface water is entering the manhole at station 11 + 17 of Upper Des Plaines Intercepting Sewer No. 3, just downstream of where the temporary bulkhead is installed. The manhole is in an area which routinely floods during rain events due to its proximity to the Des Plaines River. Rehabilitation of the manhole is required to eliminate the inflow and infiltration entering the sewer at this location.
The contractor submitted a cost proposal (COR-11) for an extra in the amount of $50,909.24 to rehabilitate the manhole. The engineer reviewed the proposal, found it reasonable, and stated via correspondence 473, that the Engineering Department would recommend its approval.
This change order is in compliance with the Illinois Criminal Code since the change is due to circumstances not reasonably foreseeable at the time the contract signed, and is in the best interest of the District.
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 04-125-3S (Re-Bid) in an amount of $50,909.24 (0.57% of the current contract value) from an amount of $8,940,547.66 to an amount not to exceed $8,991,456.90.
Funds are available in Accounts 401-50000-645600 and 645700.
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 September 16, 2010
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