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5 Reporting <br /> Following completion of investigation activities, including review of analytical results, Roux will prepare a Data <br /> Gap Investigation Report, which will include the following components as appropriate: <br /> • Description of sampling methods; <br /> • Field observations; <br /> • Tabulated soil, groundwater, and soil vapor sample analytical results; <br /> • Laboratory analytical reports; <br /> • Site map illustrating investigation locations; <br /> • Assessment of the findings; <br /> • Figures depicting soil gas and groundwater concentrations with closed iso-concentration contours; <br /> • Human health screening evaluation; and <br /> • Conclusions and recommendations. <br /> The Data Gap Investigation Report will also include an interpretation of both the groundwater and soil vapor <br /> results. The interpretation will include an assessment of whether additional investigation is needed or if site <br /> characterization is sufficient to support remedy selection. <br /> 5.1 Proposed Schedule <br /> The following provides an anticipated schedule of the activities associated with the implementation of this <br /> Data Gap Investigation Work Plan. This schedule is subject to adjustment, particularly if additional review or <br /> comment intervals are determined to be necessary by DTSC or other relevant overseeing agencies. <br /> ProposedActivity <br /> Submit Data Gap Investigation Work Plan to DTSC: July 28, 2022 <br /> DTSC Review of Data Gap Investigation Work Plan:30-days August 29,2022 <br /> Submit Revised Data Gap Investigation Work Plan: 30-days October 6,2022 <br /> DTSC Review/Approval of Revised Work Plan: 15-days October 21,2022 <br /> Fieldwork Notice:40-days following approval and 5-days prior to November 30, 2022 <br /> implementation <br /> Fieldwork Implementation(estimated) December 5—16, 2022 <br /> Submit Draft Data Gap Investigation Report to DTSC: 30-days following January 30, 2023 <br /> receipt of all laboratory data <br /> Receive DTSC Comments on Draft Report March 2023 <br /> Submit Final Report to DTSC April 2023 <br /> DTSC Approval of Final Report May 2023 <br /> 3989.0001S101/R Revised Data Gap Investigation Work Plan I ROUX 113 <br />