TRANSMITTAL LETTER FOR BOARD MEETING OF MARCH 19, 2015
COMMITTEE ON PROCUREMENT
Mr. David St. Pierre, Executive Director
Title
Authority to increase Contract 09-176-3P Sludge Thickening Facilities, Stickney Water Reclamation Plant, to McHugh Construction in an amount of $80,772.18, from an amount of $166,486,455.62, to an amount not to exceed $166,567,227.80, Account 401-50000-645650, Purchase Order 5001115
Body
Dear Sir:
On March 18, 2010, the Board of Commissioners authorized the Director of Procurement and Materials Management to award Contract 09-176-3P Sludge Thickening Facilities, Stickney Water Reclamation Plant, to McHugh Construction, in an amount not to exceed $162,232,344.00. The scheduled contract completion date is November 11, 2016.
As of March 6, 2015, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in an amount of $4,254,111.62 from the original amount awarded of $162,232,344.00. The current contract value is $166,486,455.62. The prior approved change orders reflect a 2.62% increase to the original contract value.
Item 1: A net credit in the amount of $14,227.82 to delete pavement and landscaping restoration in two areas as shown on sheets CF-01-04 and CF-01-05. Restoration of these two areas is no longer necessary due to future work scheduled for this area under Contract 11-195-AP (Phosphorus Recovery System at SWRP). The work to be deleted is as follows: Provide a credit for not installing the 8" portland cement concrete pavement south of the pre-digestion centrifuge facility. Provide a credit for landscape restoration andanyremaining roadway restoration between the west wall of the Post-Digestion Centrifuge Facilityand the east curbline of 6th Street. Additional concrete apron and curb which was requiredfor RFI-1874 will beadded to the scope of this RFQ as an extra. The contractor submitted a cost proposal (CCO-206) for an extra in the amount of $3,515.93 and a credit in the amount of $17,743.75, for a net credit in the amount of$14,227.82. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 5251, that the Engineering Department would recommend its approval.
Item 2: A net extra in the amount of $95,000.00 to make revisions to the required modifications of the existing dual underground 20" cast iron Southwest primary sludge lines west of the Sludge Control Building. The underground portions of these lines scheduled to be cut, capped, and routed into the Sludge Control Building cannot be constructed as shown due to unforeseen underground interferences. The requested changes include the following: (1) Revise the disconnection of the west 20" line and provide a valve connection between the north and south segments of the line, (2) Modify the connection of the west 20" line to the piping which feeds the bar screen channel, (3) Modify the connection of the west 20" line to the piping which feeds Wet Well 1, (4) Modify the connection of the east 20" line to the piping which feeds Wet Well 2, (5) Relocate the cap on the east 20" line, and (6) Remove piping and install blind flanges in the Sludge Control Building. The contractor submitted a cost proposal (CCO-202) for an extra in the amount of $139,664.12 and a credit in the amount of $44,664.12, for a net extra in the amount of$95,000.00. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 5265, that the Engineering Department would recommend its approval.
The above 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 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 two change orders to increase Contract 09-176-3P in an amount of $80,772.18 (0.049% of the current contract value), from an amount of $166,486,455.62 to an amount not to exceed $166,567,227.80.
Funds are available in Account 401-50000-645650.
Requested, Catherine O'Connor, Director of Engineering, MVL:ECB
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 March 19, 2015
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