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TETRA TECH,INC. <br /> 4.3 DIRECT PUSH TECHNOLOGY DRILLING PROCEDURES.....................................4-1 <br /> 4.4 SAMPLING PLAN..........................................................................................................4-2 <br /> 4.4.1 Sampling Locations............................................................................................4-2 <br /> 4.4.2 Field Quality Control Samples...........................................................................4-5 <br /> 4.4.2.1 Field Duplicates..................................................................................4-5 <br /> 4.4.2.2 Matrix Spikes and Matrix Spike Duplicates.......................................4-5 <br /> 4.4.2.3 Equipment Blanks..............................................................................4-5 <br /> 4.4.2.4 Trip Blanks.........................................................................................4-5 <br /> 4.4.2.5 Temperature Blanks............................................................................4-6 <br /> 4.5 SAMPLING EQUIPMENT AND PROCEDURES ........................................................4-6 <br /> 4.5.1 Groundwater Sample Collection.........................................................................4-6 <br /> 4.5.2 Soil Sample Collection.......................................................................................4-6 <br /> 4.5.2.1 SVOCs,TPH-D,TPH-0....................................................................4-6 <br /> 4.5.2.2 VOCs and TPH-G...............................................................................4-7 <br /> 4.6 EQUIPMENT DECONTAMINATION PROCEUDRES...............................................4-7 <br /> 4.7 SAMPLE DOCUMENTATION AND HANDLING......................................................4-9 <br /> 4.7.1 Sample Numbering System ................................................................................4-9 <br /> 4.7.2 Sample Labels.....................................................................................................4-9 <br /> 4.7.3 Field Logbook.....................................................................................................4-9 <br /> 4.7.4 Photographs......................................................................................................4-10 <br /> 4.7.5 Sample Packaging and Shipping.......................................................................4-10 <br /> 4.7.6 Chain-of-Custody Procedures...........................................................................4-11 <br /> 4.8 INVESTIGATION DERIVED WASTE.......................................................................4-12 <br /> 5.0 ACRONYMS AND ABBREVIATIONS......................................................5-1 <br /> 6.0 REFERENCES ...............................................................................................6-1 <br /> LIST OF FIGURES <br /> Figure 1-1 Assessor's Parcel Map Showing Former Mansfield Property in Red......................................1-3 <br /> Figure 3-1 Proposed Sample Locations Indicated in Yellow....................................................................3-7 <br /> Figure 4-1 EnCore®Sampler Diagram.....................................................................................................4-8 <br /> Figure 4-2 EnCore®Sampler T-Handle Diagram.....................................................................................4-8 <br /> Figure 4-3 Properly Locked Sampling Cap..............................................................................................4-8 <br /> Figure 4-4 Improperly Locked Sampling Cap..........................................................................................4-8 <br /> Figure 4-5 Example Chain-of-Custody Form..........................................................................................4-12 <br /> Figure 4-6 Material Information and Drum Contents Form...................................................................4-13 <br /> LIST OF TABLES <br /> Table 3-1 Sampling and Analysis Methodologies and Comparison Values..............................................3-3 <br /> Table 4-1 Sample Volume,Container,Preservation,Holding Time Requirements.................................4-3 <br /> Table 4-2 Planned Groundwater Samples and Analyses..........................................................................4-4 <br /> APPENDICES <br /> APPENDIX A—Site-Specific Health and Safety Plan <br /> APPENDIX B—Permit Documents <br /> APPENDIX C—Field Forms <br /> Page ii Sampling Effort Work Plan <br /> Tracy Mansfield Property <br />