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SAP/QAPP Addendum <br /> Lodi-125 N Stockton <br /> Final <br /> March 24,2025 <br /> 4.3.2 Historical UST Soil Sampling.................................................................................................41 <br /> 4.4 Soil Gas Sampling...............................................................................................................................41 <br /> 4.5 Ambient Air Sampling........................................................................................................................41 <br /> 5.0 REQUEST FOR ANALYSIS RATIONALE.......................................................................... 43 <br /> 5.1 Analysis Narrative...............................................................................................................................43 <br /> 5.2 Analysis Laboratory............................................................................................................................44 <br /> 6.0 FIELD METHODS AND PROCEDURES........................................................................... 48 <br /> 6.1 Field Equipment.................................................................................................................................48 <br /> 6.2 Calibration of Field Equipment........................................................................................................48 <br /> 6.3 Geophysical Survey.............................................................................................................................49 <br /> 6.4 Hazardous Building Material Sampling...........................................................................................50 <br /> 6.4.1 Structural Materials Sampling..................................................................................................50 <br /> 6.4.2 Lead-Based Paint Screening......................................................................................................50 <br /> 6.4.3 Caulk Sampling for Polychlorinated Bobenyls..........................................................................51 <br /> 6.5 Soil Sampling.......................................................................................................................................52 <br /> 6.5.9 Historical MGP Soil Sampling................................................................................................52 <br /> 6.5.2 Historical UST Soil Sampling.................................................................................................53 <br /> 6.6 Soil Gas and Sub-Slab Soil Gas Sampling.......................................................................................53 <br /> 6.7 Ambient Air Sampling........................................................................................................................54 <br /> 6.7.9 Indoor Air Sampling................................................................................................................55 <br /> 6.7.2 Outdoor Air Sampling.............................................................................................................55 <br /> 6.8 Decontamination Procedures...........................................................................................................55 <br /> 6.9 Cultural Resource Discoveries..........................................................................................................55 <br /> 7.0 SAMPLE CONTAINERS,PRESERVATION,PACKAGING,AND SHIPPING............... 57 <br /> 7.1 Sample Containers..............................................................................................................................57 <br /> 7.2 Packaging and Shipping.....................................................................................................................57 <br /> 8.0 DISPOSAL OF RESIDUAL MATERIALS............................................................................ 58 <br /> 9.0 SAMPLE IDENTIFICATION,DOCUMENTATION,AND SHIPMENT........................ 59 <br /> 9.1 Field Notes...........................................................................................................................................59 <br /> 9.1.9 Field Logbooks.........................................................................................................................59 <br /> 9.1.2 Photographs..............................................................................................................................59 <br /> 9.2 Sample Labeling..................................................................................................................................59 <br /> 9.3 Sample Chain-of-Custody Forms and Custody Seals...................................................................59 <br /> 10.0 QUALITY ASSURANCE AND CONTROL.........................................................................60 <br /> 10.1 Field Quality Control Samples..........................................................................................................60 <br /> 111 <br />