2008-037 - Laserfiche WebLink

Home Browse Search

Janet Dunlap, P .E. GeOSynte& 2 January 2008 consultants Page 2 As requested, Geosyntec has prepared a scope of work to (i) delineate the extent of arsenic impacts, (ii) prepare an ISR Work Plan which provides details for the remediation of the identified soil and groundwater arsenic impacts, (iii) implement the excavation activities and transport of the impacted soil and groundwater, and (iv) prepare an ISR Report which provides documentation of the excavation and soil/groundwater disposal activities . The proposed field activities include the collection of soil samples from select locations around the former cattle dipping vat and analysis of these samples for arsenic by a fixed based laboratory. Once the delineation is complete (samples collected with arsenic concentrations near or below the residential SCTL or background) , an ISR Work Plan will be prepared which provides details regarding the proposed voluntary cleanup efforts for submittal to the Florida Department of Environmental Protection (FDEP ) . Upon submittal to the FDEP , excavation of the impacted area can begin. The proposed ISR activities will include initial site preparation (tree/brush clearing and silt fence installation), removal of the cattle dipping vat structure, arsenic impacted soil excavation, shallow saturated zone soil excavation, and arsenic impacted groundwater extraction . Excavated soil, concrete, and cleared brush will be transported to the IRC landfill . Landfill disposal costs will be the responsibility of IRC. Extracted groundwater will be hauled to an industrial wastewater treatment facility in Jacksonville, Florida. We have developed a task-based approach to accomplish this work in an organized and cost- effective manner. The remainder of this letter provides a description of the proposed scope of work. A budget estimate to accomplish the work described herein is provided in Exhibit 2 . SCOPE OF WORK Task 1 — Preliminary Activities Task 1 includes project management for the entire project, subcontracting, project coordination, project administration, as well as preliminary activities associated with bidding the project, and revising the Site- Specific Health and Safety Plan to reflect the proposed excavation work. Excluding project management, much of the preliminary activities have been completed . Geosyntec also discussed the project in general terms with the FDEP to confirm the proposed strategy is acceptable. X R07084/CCR08003 . DOC ullgiiiBCiJ I scientists J intiov4Lols