Summary

This document consists of task assignment notifications and change orders related to contract HW551 between the Florida Department of Environmental Protection (FDEP) and AECOM Technical Services, Inc. (AECOM). The contract pertains to Natural Attenuation Monitoring and soil sampling services at the Aircraft Cleaners site (ERIC_4413) in Miami-Dade County. Task Assignment DC006F was originally issued on March 26, 2019, with an initial value of $10,352.30. The contract manager is Brandie Stringer, and the contractor representative is Mark Rasberry.

The task encompasses a comprehensive Natural Attenuation Monitoring and Soil Sampling Report, including groundwater sampling, soil boring operations, laboratory analytical services, and field expenses. Change Order #1, executed on May 30, 2019, added $5,228.43 to address additional mobilization work required due to contractor hiring refusal, bringing the task amount to $15,580.73 with a completion date of August 2, 2019. Change Order #2, dated September 23, 2019, reduced costs by $1,254.00 through removal of unused SPLP lab charges and 8021 leachate analyses, resulting in a final task amount of $14,326.73 with completion extended to December 13, 2019. The deliverable structure includes labor costs across multiple staff categories (geologists, engineers, field technicians), subcontractor services for drilling and utility location, laboratory analytical costs, and field expense items.