CN-370000-HW556-DC02ECO4.pdf

This package contains Task Assignment Change Orders (Change Order Nos. 3 and 4) for Contract HW556 between the Florida Department of Environmental Protection (FDEP) and Cardno, Inc. (HSW Engineering, Inc.). The contract relates to environmental remediation services at the Gulf States Beauty Supply (formerly) site located at 11049-1057 Kings Avenue, Jacksonville, Duval County, Florida (ERIC_4603). The primary contact for FDEP is Walsta Jean-Baptiste, Contract Manager, and the contractor representative is W. Bruce Moore. These change orders reconcile subcontractor and analytical costs associated with well installation, groundwater sampling, and investigation derived waste disposal activities.

Change Order No. 3 increases the task amount by $4,362.31 to authorize subcontractor costs for well installation and investigative derived waste disposal, with a completion date extension of three months to August 30, 2019. Change Order No. 4 reconciles well installation costs and reduces the task amount by $8,278.18, resulting in a total task cost of $24,304.62 with 68 hours of labor. The final deliverable for both change orders is the Groundwater Sampling Letter Report, ADaPT/GIS update, and Final investigative derived waste manifest, due June 28, 2019. Key cost reductions in Change Order No. 4 resulted from cancelled well installation activities due to additional safety requirements imposed by Jacksonville Transportation Authority, with Cardno retaining only onsite meeting and permitting costs. The subcontractor cost reconciliation included drilling services ($13,832.13), IDW management ($1,000.00), and laboratory analytical costs ($540.00), with corresponding adjustments documented through detailed cost estimate forms dated March 13, 2019, and May 10, 2019.