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REFERENCES <br /> AGE (Advanced GeoEnvironmental, Inc.), 2019; Soil Vapor and Indoor Air Monitoring Report <br /> —First Quarter 2019, dated May 14, 2019. <br /> Cal EPA (California Environmental Protection Agency), 2015, Advisory Active Soil Gas <br /> Investigations, dated July 2015. <br /> FREY (FREY Environmental, Inc.), 2022; Workplan - Additional Off-Site Groundwater <br /> Investigation, Cancun Restaurant, 135 East Miner Avenue, Stockton, California; Project <br /> #1092-01; dated May 31, 2022. <br /> SFBRWQCB (San Francisco Bay Regional Water Quality Control Board), 2019, Subslab/Soil <br /> Gas Vapor Intrusion: Human Health Risk Screening Levels, Table SG-1, dated January <br /> 2019. <br /> Attachments <br /> References <br /> Table 1 Second Quarter 2021 Groundwater Levels and Summary of Laboratory Analytical <br /> Results <br /> Table 2 Second Quarter 2021 Additional Detected Volatile Organic Compounds in <br /> Groundwater Samples <br /> Table 3 Summary of Historical Groundwater Grab Sample Analytical Results <br /> Table 4 Summary of Well and Probe Construction Details <br /> Table 5 Evaluation Matrix for Retained Remedial Alternatives <br /> Figure 1 Site Location Map <br /> Figure 2 Site Vicinity Sketch <br /> Figure 3 Site Sketch Showing Proposed Soil Vapor Probe Locations <br /> Appendix A RWQCB Letter Dated March 8, 2022 <br /> Appendix B Historical Soil, Soil Vapor and Groundwater Analytical Data(AGE) <br /> Appendix C Boring Logs (B 1 and VW-1) <br /> Appendix D Typical Soil Vapor Probe and Vapor Pin Construction Diagrams <br /> Appendix E Field Procedures <br /> Appendix F Health and Safety Plan <br /> cc: Juan Ruvalcaba-via email <br /> Connor Shingai— SWRCB ECAP Unit <br /> SWRCB Geotracker Database (http://esi.waterboards.ca.gov) <br /> FREY Environmental, Inc. 10 1092-01 <br />