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Mr. Himanshu H. Mehta, P.E. <br />2 April 2020 <br />Page 2 <br />PROJECT BACKGROUND <br />Geosynte& <br />consultants <br />As part of the long-term monitoring activities for the identified CVOC plume associated with the <br />South Gifford Road Landfill, a network of monitoring wells will require sampling on an annual or <br />semi-annual basis to: (i) confirm that the CVOC plume is not migrating by monitoring the lateral <br />and vertical extent; (ii) evaluate the impact of source and dissolved plume bioremediation to assess <br />CVOC plume centerline concentrations over time; and (iii) assess the impact of biological and <br />physical natural attenuation processes on CVOC plume degradation. <br />In consideration of the ongoing natural attenuation processes occurring at the site, the enhancement <br />of these biological processes via the injection of an electron donor was proposed and agreed to in <br />concept by the FDEP in correspondence dated 2 August 2006. In response to FDEP's request and <br />supported by groundwater monitoring results, Geosyntec conducted an injection event in 2017 <br />[Remedial Action Plan Modification Addendum No. 3 (RAPM3)] to remediate recalcitrant CVOC <br />groundwater impacts in the former source area. Semi-annual performance monitoring associated <br />with bioremediation implementation is ongoing at monitoring wells GR-MW30B and GR- <br />MW37B and conducted concurrently with groundwater monitoring of the plume monitoring well <br />network. <br />PROPOSED SCOPE OF WORK <br />The proposed scope of work consists of semi-annual groundwater monitoring and reporting and <br />related activities to be performed on behalf of IRC SWDD at the Former South Gifford Road <br />Landfill. For the purpose of budgeting, the scope of work has been divided into the following <br />tasks: <br />• Task 1 — Project Management; <br />• Task 2 — Meetings/Regulatory Interaction; <br />• Task 3 — Annual Pollution Remediation Liabilities Evaluation; <br />• Task 4 — Semi -Annual Sampling Activities; and <br />• Task 5 — Data Evaluation and Semi -Annual Reporting. <br />The remainder of this section presents a general description of the activities to be performed in <br />each task. <br />FR0766\XR20017 <br />engineers i scientists i iniiovators <br />