TRANSMITTAL LETTER FOR BOARD MEETING OF JANUARY 10, 2019
COMMITTEE ON PROCUREMENT
Mr. Brian A. Perkovich, Executive Director
Title
Authority to decrease Contract 11-239-3S Calumet Intercepting Sewer 19F Rehabilitation, Calumet Service Area, to Insituform Technologies USA, Inc. in an amount of $7,800.00, from an amount of $14,238,856.11, to an amount not to exceed $14,231,056.11, Account 401-50000-645700, Purchase Order 4000036
Body
Dear Sir:
On June 2, 2016, the Board of Commissioners authorized the Director of Procurement and Materials Management to award Contract 11-239-3S Calumet Intercepting Sewer 19F Rehabilitation, Calumet Service Area, to Insituform Technologies USA, Inc., in an amount not to exceed $12,395,588.70. The scheduled contract completion date was March 6, 2018.
As of December 21, 2018, the attached list of change orders has been approved. The effect of these change orders resulted in an increase in an amount of $1,843,267.41 from the original amount awarded of $12,395,588.70. The current contract value is $14,238,856.11. The prior approved change orders reflect a 15% increase to the original contract value.
While preparing to abandon the 10" diameter damaged sewer pipe connecting the Lake St. siphon with the Des Plaines River Intercepting Sewer No. 1 in Maywood, using grout fill, the contractor encountered 3" to 4" of active flow in the sewer that was not there previously. This increase in infiltration in the sewer makes the initially planned work impractical. Rather than fill the entire abandoned pipe with grout, the contractor is now proposing to install 10" diameter mechanical plugs a couple of feet into the sewer on both ends, and then to install high strength concrete on both ends to create a minimum 8" thick concrete bulkhead. The contractor submitted a cost proposal (CCO-005) for a credit in the amount of $7,800.00. The engineer reviewed the proposal, found it to be reasonable and stated, via correspondence 342, 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 circumstance 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 a change order to decrease Contract 11-239-3S in an amount not to exceed $7,800 (.001% of the current contract value), from an amount of $14,238,856.11, to an amount not to exceed $14,231,056.11.
Funds will be restored to Account 401-50000-645700.
Requested, Catherine A. O’Connor, 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 January 10, 2019