Okaloosa County BOCC — June 2, 2015 — Final Change Order & Final Payment - Layne Christensen Contract on Del — agenda request

BOARD OF COUNTY COMMISSIONERS AGENDA REQUEST DATE: June 2, 2015 TO: Honorable Chairman and Members of the Board FROM: Jeff Littrell SUBJECT: Final Change Order & Final Payment - Layne Christensen Contract on Del Cerro II Well DEPARTMENT: Water and Sewer BCC DISTRICT: 1 STATEMENT OF ISSUE: OCWS staff requests BCC approval of Change Order #6 (Final Summary) and final payment in the amount of $212,628.40 to Layne Christensen Company, Inc. for Del Cerro II Public Water Supply Well on contract # C13-2026-WS. BACKGROUND: Via the County's formal bidding process, the Board of County Commissioners entered into a contract with Layne Christensen Company, Inc. on April 3, 2013 for the construction of the Del Cerro II Public Water Supply Well. Five (5) previous change orders were approved for this project. Those change orders addressed additional costs and contract time related to unforeseen subsurface conditions and well hydraulic conditions. Changes made during the course of construction dramatically changed the design of the well and the well building. The project was complete in early February 2015 and permanently went on- line in March of 2015. The time between completion and the well being placed on-line was spent coordinating with OCWS’s SCADA system for required monitoring. It was during this time that adjustments were made to existing controls that ensure proper monitoring, safety, and operation. The contract with Layne was a unit price contract. Change Order #6 (Final Summary) adjusts the contract amount to reflect the as-installed and field verified quantities. The net result of Change Order #6 is a deduction of $17,522.50 from the previously approved contract price, bringing the final cost of the project to $1,051,080.05. The change order also adds time to the contract that was necessary to allow OCWS staff to complete their installations that integrate with the well’s controls, and to troubleshoot items and adjust electronic components that could only be identified once all components were installed and functional. Now that all work has been completed and deemed sufficient, final payment is now due on the contract. Upon BCC approval of the final payment, a one (1) year warranty period will begin on all components installed under this contract. For your review and consideration, please find attached all the necessary documentation and the completed Contract Close-Out Checklist. OPTIONS: Approve or deny. RECOMMENDATIONS: Staff recommends BCC approval to authorize the Chairman to execute Change Order #6 (Final Summary) and final payment of $212,628.40 to Layne Christensen Company for construction of the new Del Cerro II Public Water Supply Well on contract # C13-2026-WS. RECOMMENDED BY: APPROVED BY: John Hofstad, County Administrator