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Cleanup in Vulnerable Communities'Initiative Discovery Project Reference:Favorite Cleaners <br /> and Enforcement Discovery Investigation Work Plan Project Number:60688620 <br /> 3.2.5.6 Field Quality Control Samples............................................................................... 18 <br /> 3.2.5.7 Field Equipment and Calibration............................................................................ 19 <br /> 3.2.6 Sample Analysis.................................................................................................................20 <br /> 3.2.6.1 Analyses of Soil Vapor Samples............................................................................20 <br /> 3.2.6.2 Analyses of Groundwater Samples........................................................................21 <br /> 3.2.6.3 Analyses of Indoor/Outdoor ambient air Samples...................................................21 <br /> 3.2.6.4 Laboratory Quality Control Samples.......................................................................21 <br /> 3.2.7 Sample Containers and Preservatives.................................................................................21 <br /> 3.2.8 Water Sample Collection, Packaging, and Shipment............................................................21 <br /> 3.2.9 Sample Documentation.......................................................................................................22 <br /> 3.2.9.1 Field Forms...........................................................................................................22 <br /> 3.2.9.2 Chain-of-Custody Records....................................................................................23 <br /> 3.2.9.3 Photographs.........................................................................................................24 <br /> 3.2.10 Decontamination Procedures..............................................................................................24 <br /> 3.2.11 Investigation-Derived Waste Management...........................................................................24 <br /> 4. Quality Assurance Project Plan...................................................................................................................26 <br /> 4.1 Data Quality Objective Process........................................................................................................26 <br /> 4.2 Specific Data Quality Objectives......................................................................................................27 <br /> 4.2.1 Precision............................................................................................................................27 <br /> 4.2.2 Accuracy............................................................................................................................27 <br /> 4.2.3 Representativeness............................................................................................................28 <br /> 4.2.4 Completeness....................................................................................................................28 <br /> 4.2.5 Comparability.....................................................................................................................28 <br /> 4.2.6 Method Detection Limits......................................................................................................28 <br /> 4.3 Data Collection and Evaluation........................................................................................................29 <br /> 4.4 Data Management...........................................................................................................................29 <br /> 4.5 Assessment Oversight.....................................................................................................................30 <br /> 5. Field Variances..........................................................................................................................................31 <br /> 6. Health and Safety Plan...............................................................................................................................32 <br /> 7. Screening Risk Evaluations........................................................................................................................33 <br /> 7.1 Human Health Screening Risk Evaluation........................................................................................33 <br /> 8. Discovery Investigation Report Preparation.................................................................................................34 <br /> 9. Proposed Schedule....................................................................................................................................35 <br /> 10. References................................................................................................................................................36 <br /> Prepared for: California Department of Toxic Substances Control AECOM <br />