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Groundwater Data Gaps Site Investigation <br /> 8 March 2019 <br /> Page 6 <br /> authorization from DTSC and the RWQCB. Pending driller availability, weather, and site <br /> conditions, the fieldwork will commence upon receipt of the approved drilling permits. The data <br /> gaps fieldwork proposed in this memorandum is anticipated to take approximately six weeks to <br /> complete. Results of the grab-groundwater sampling and recommendations for future evaluation <br /> work will be presented to the DTSC and RWQCB in a meeting following receipt of the analytical <br /> results. The results of the data gap investigation will be included in the Annual Groundwater <br /> Monitoring Report, which, in accordance with the GMWP, will be submitted within 90 days of <br /> completion of the data gaps investigation field activities. <br /> Enclosure: Attachment 1: Response to Comments <br /> Table 1: Grab Groundwater Sampling Plan <br /> Table 2: Groundwater Monitoring Well Sampling Plan <br /> Figure 1: Site Location <br /> Figure 2: Rough and Ready Island Sites <br /> Figure 3: Site Layout and Grab Groundwater Sample Locations <br /> Figure 4: Site 3 Grab Sample Locations <br /> Figure 5: Site 4 Grab Sample Locations <br /> Figure 6: Central Area Grab Sample Locations <br /> Figure 7: Landfill Area Grab Sample Locations <br /> 2019_0308_RRI_Revised Data Gaps Investigation Memo <br /> engineers I scientists I innovators <br />