TRANSMITTAL LETTER FOR BOARD MEETING OF APRIL 5, 2012
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 $9,119.32, from an amount of $163,696,392.79, to an amount not to exceed $163,705,512.11, Account 401-50000-645650, Purchase Order 5001115
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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 April 12, 2014.
As of March 16, 2012, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in an amount of $1,464,048.79 from the original amount awarded of $162,232,344.00. The current contract value is $163,696,392.79. The prior approved change orders reflect a 0.90% increase to the original contract value.
Item 1: An extra in the amount of $3,133.61 for additional pavement restoration which resulted from work covered under CCO-022, previously approved by the Board of Commissioners on March 17, 2011. CCO-022 involved the installation of dual 30" ductile iron pipes in lieu of one 42" reinforced concrete pipe for the new drain line from the post-digestion building. During preparation of the scope of work for CCO-022, both the contractor and District staff inadvertently missed the need for additional pavement restoration. This work should have been included in CCO-022. The contractor submitted a cost proposal (CCO-043) for an extra in the amount of $3,133.61. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 2729, that the Engineering Department would recommend its approval.
Item 2: A net extra in the amount of $9,521.63 to revise the conduit and cable for the 16 centrifuge feed valves in the Area 51-Pre-Digestion Centrifuge Building. The contract drawings did not show the proper number of wires and conduit to provide control wiring to the valves. The contractor submitted a cost proposal (CCO-103) for an extra in the amount of $13,779.79 and a credit in the amount of $4,258.16, for a net extra in the amount of $9,521.63. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 2699, that the Engineering Department would recommend its approval.
The above two change orders are in compliance with the Illinois Criminal Code since the changes are germane to the contract.
Item 3: A net credit in the amount of $3,535.92 to modify the installation of temporary communication wiring. The contract details the installation of temporary communication lines under the existing railroad tracks on the Southeast corner of the existing drying beds. The details show the communication cables running through a 14" steel casing at a minimum of five feet below the railroad. The contractor proposed a less expensive option to use a directional bore procedure with two 4" steel PVC coated conduits at a minimum of 7 feet below the railroad, in lieu of running the communications cable through a 14" steel casing as specified. The contractor submitted a cost proposal (CCO-005) for an extra in the amount of $22,704.89 and a credit in the amount of $26,240.81, for a net credit in the amount of $3,535.92. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 2741, that the Engineering Department would recommend its approval.
This change order is 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 recommended that the Board of Commissioners authorize the Director of Procurement and Materials Management to execute three change orders to increase Contract 09-176-3P in an amount of $9,119.32 (0.01% of the current contract value) from an amount of $163,696,392.79 to an amount not to exceed $163,705,512.11.
Funds are available in Account 401-50000-645650.
Requested, Kenneth A. Kits, Director of Engineering, TEK: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 5, 2012
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