TRANSMITTAL LETTER FOR BOARD MEETING OF DECEMBER 15, 2016
COMMITTEE ON PROCUREMENT
Mr. David St. Pierre, Executive Director
Title
Authority to increase Contract 06-212-3M Calumet TARP Pump Station Improvements, Calumet Water Reclamation Plant, to Sollitt/Sachi/Alworth JV in an amount of $127,654.93, from an amount of $35,570,964.00, to an amount not to exceed $35,698,618.93, Account 401-50000-645600, Purchase Order 5001404
Body
Dear Sir:
On May 2, 2013, the Board of Commissioners authorized the Director of Procurement and Materials Management to award Contract 06-212-3M Calumet TARP Pump Station Improvements, Calumet Water Reclamation Plant, to Sollitt/Sachi/Alworth JV, in an amount not to exceed $35,067,000.00. The scheduled contract completion date is May 19, 2018.
As of December 2, 2016, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in an amount of $503,964.00 from the original amount awarded of $35,067,000.00. The current contract value is $35,570,964.00. The prior approved change orders reflect a 1.44% increase to the original contract value.
Item 1: An extra in the amount of $79,904.00 is necessary to perform the Distributed Control System modifications to incorporate additional signals at the direction of the engineer. During construction, several meetings were held which determined that these modifications to the original control strategies were required. These modifications included the hard-wiring of safety features and additional communication points that were not identified in the original design, as well as subsequent modifications to the programming. The contractor submitted a cost proposal (CCO-030) for an extra in the amount of $79,904.00. The engineer reviewed the proposal, found it reasonable, and stated via correspondence 670, that the Engineering Department would recommend its approval.
Item 2: An extra in the amount of $47,750.93 for control schematic revisions, relay additions and wiring changes to six existing TARP 13.2 kV feeder breakers, and control schematic revisions and modifications to six new medium voltage Variable Frequency Drives (VFDs). These changes are required for additional interlocking between the six existing 13.2 kV feeder breakers and their associated VFDs. ABB’s (VFD manufacturer) Engineering Guidelines, which were furnished to the District after award of the contract, require the VFD to initiate closing of the respective 13.2.kV feeder breaker. The District’s standard operating procedure is that only a District electrical operator can initiate a 13.2 kV breaker to close. To satisfy the District’s and ABB’s breaker closing requirements, additional engineering work and modifications to the six TARP 13.2 kV feeder breaker circuits and six ABB VFDs are required. The contractor moved forward at its own risk and has already completed modifications for the three West Pump Room units which are currently in start-up testing. The contractor submitted a revised cost proposal (CCO-026) for an extra in the amount of $47,750.93. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence 657, 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.
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 06-212-3M in an amount of $127,654.93 (0.36% of the current contract value), from an amount of $35,570,964.00, to an amount not to exceed $35,698,618.93.
Funds are available in Account 401-50000-645600.
Requested, Catherine O’Connor, Director of Engineering, MVL:GR
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 December 15, 2016
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