TRANSMITTAL LETTER FOR BOARD MEETING OF APRIL 23, 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 $11,380.51, from an amount of $166,568,033.53, to an amount not to exceed $166,579,414.04, 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 April 10, 2015, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in an amount of $4,335.689.53 from the original amount awarded of $162,232,344.00. The current contract value is $166,568,033.53. The prior approved change orders reflect a 2.67% increase to the original contract value.
Item 1: A net credit in the amount of $5,033.49 to make certain revisions to CCO-117. CCO-117 was approved by the Board on September 6, 2012, for an extra in the amount of $34,122.86 for modifying the connection between the new centrifuge-thickened sludge line and an existing thickened sludge pipe. The revisions being made to CCO-117 include utilizing cement lined ductile iron pipe and fittings in lieu of glass-lined ductile iron pipe and fittings. The change is being made due to the long lead-time required for purchasing glass-lined ductile iron pipe and because adjacent piping is not glass-lined. Therefore, glass-lined ductile iron pipe is not necessary for this application. The contractor submitted a cost proposal (CCO-207) for an extra in the amount of $200.00 and a credit in the amount of $5,233.49, for a net credit in the amount of $5,033.49. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 5282, 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 was signed, and is in the best interest of the District.
Item 2: An extra in the amount of $16,414.00 to provide a 20" mechanical joint (MJ) gate valve for use in CCO-202. CCO-202 was approved by the Board on March 19, 2015, for a net extra in the amount of $95,000.00. The scope of work for CCO-202 included the installation of a 20" MJ gate valve on the North PREL line adjacent to the Sludge Control Building to be supplied by the District. Subsequent investigation has revealed that the District's existing valve is not suitable for buried service. Therefore, a 20" MJ gate valve suitable for buried service needs to be furnished in order to complete the work. The contractor submitted a cost proposal (CCO-214) for an extra in the amount of $16,414.00. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 5352, 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 two change orders to increase Contract 09-176-3P in an amount of $11,380.51 (0.007% of the current contract value), from an amount of $166,568,033.53, to an amount not to exceed $166,579,414.04.
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 April 23, 2015
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