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' Of-Site Groundwater Investigation Work Plan <br /> Rainwater Car Wash,Manteca, California 95336 <br /> May 30,2012 <br /> ' 5.3.1 Monitoring Well Locations..........................................................................................6 <br /> 5.3.2 Hollow-Stem Auger Drilling Method and Soil Sample Collection ...............................6 <br /> 5.3.3 Well Installation..........................................................................................................7 <br /> 5.3.4 Well Survey................................................................................................................7 <br /> 5.3.5 Well Development and Groundwater Sampling .........................................................7 <br /> ' 5.4 Equipment Decontamination ....................................................................................................8 <br /> 5.5 Disposal of Investigation-Derived Wastes................................................................................8 <br /> 5.6 Quality Assurance/Quality Control ...........................................................................................8 <br /> ' 5.7 Field Variances...................................................................................................................:.....8 <br /> 5.8 Report Preparation...................................................................................................................9 <br /> ' 6. SCHEDULE.......................................................................................................................................9 <br /> 7. REFERENCES ................................................................................................................................10 <br /> t Figures <br /> Figure 1 —Site Location Map <br /> ' Figure 2 —Site Map <br /> Figure 3— Proposed Monitoring Well Locations <br /> Figure 4—Groundwater Monitoring Well Construction Diagram <br /> ' Table <br /> Table 1 —Well Construction Details <br /> ' Appendices <br /> Appendix A — CVRWQCB Correspondence dated February 27, 2012 <br /> ' Appendix B — Health and Safety Plan <br /> 1 <br /> 1 <br /> ralAdini <br /> ::ocfates.lnc. <br />