Laserfiche WebLink
Mr. Himanshu H. Mehta, P.E. <br />12 April 2019 <br />Page 4 <br />Geosyntec ° <br />consultants <br />summer 2020 sampling event. Consistent field documentation and field protocols will be utilized <br />to develop reliable data to support the natural attenuation evaluation for the groundwater plume. <br />The groundwater samples will be analyzed in accordance with the sampling plan summarized in <br />the 2018 Annual Groundwater Monitoring Report. Quality control samples are proposed to be <br />collected at a rate of 5% of total samples as required by the most recent FDEP SOPs. <br />Geosyntec will conduct a complete round of groundwater level measurements coincident with each <br />semi-annual groundwater sampling event (budgeted for one day with two -person field team for <br />each event). Depth to groundwater measurements will be recorded to the nearest 0.01 -ft in each <br />monitoring well, including existing monitoring wells and applicable City of Vero Beach wells <br />(assumed up to 95 wells per event). Due to wet site conditions and difficult access to certain well <br />clusters, costs for rental of a utility task vehicle are included for one day of groundwater level <br />measurements and one day of sampling per event (4 total days). <br />It is anticipated that purge water (investigation -derived waste [IDW]) will be containerized in 55 - <br />gallon polyethylene drums and temporarily staged on Site for characterization prior to removal <br />and disposal. Costs are included herein for purchase and delivery to the site for two 55 -gallon <br />polyethylene drums and for one-half day of drum disposal oversight for one person. <br />Geosyntec will provide oversight for a contractor to clear brush in an approximate 6 feet radius <br />around select well clusters in conjunction with the summer 2019 groundwater sampling event to <br />maintain access to well clusters. Costs are included for one day oversight (with one person) and <br />for subcontractor costs. <br />Overall, for field activities, budget has been included for nine and one-half field days for one <br />person, eight field days for a second person, (i.e., 17.5 man days) and associated field expenses for <br />sampling. <br />Task 5 — Data Evaluation and Semi -Annual Reporting: Under this task, Geosyntec will perform <br />data evaluation activities and reporting. The reporting includes preparation of one summer 2019 <br />report (simplified format) and one winter 2019 report for submittal to FDEP. <br />The summer 2019 report will be a letter report with attachments, including a monitoring well <br />location map and tables of the field and laboratory results. Data evaluation activities for the <br />summer 2019 report will include database management, screening results against applicable <br />regulatory criteria, and summary data table preparation. This report will be prepared following the <br />June groundwater sampling event. <br />The winter 2019 report will be consistent with the groundwater monitoring reports historically <br />submitted to FDEP for this Site and the data evaluation activities will include database <br />management, screening results against applicable regulatory criteria, GIS figure preparation, time <br />FR0766\XR 19012 <br />engineers I scientists I innovators <br />