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SAP/QAPP Addendum <br /> Lodi-125 N Stockton <br /> Final <br /> March 24,2025 <br /> SITE-SPECIFIC QAPP WORKSHEET#19 <br /> SAMPLE CONTAINERS,PRESERVATION AND HOLD TIMES <br /> Maximum <br /> Matrix <br /> Analytical Concentration Analytical Sample Volume and Containers Preservation Holding Timea <br /> Group Level Methods Requirements (Preparation/ <br /> Analysis) <br /> Building Material Asbestos NA EPA 600/R- Whirl-Pak®bag None None <br /> 93/116 <br /> Building Material(Paint) Lead NA EPA 7000 Whirl-Pak®bag None 180 days <br /> Building Material Caulk PCBs NA EPA 8082 One 4-ounce glass jar None None <br /> Lead and ICP-MS EPA 6020 One 4-ounce glass jar with TeflonTM- None 180 days <br /> Arsenic lined cap <br /> 5-gram aliquots collected with a Terra <br /> Core®sampler and placed into two <br /> TPH- NA EPA 8015M pre-labeled pre-weighed 40-mL glass Cool <— 6°C <br /> 14 days <br /> Soil GRO vials with TeflonTM-lined septum Methanol y <br /> caps containing magnetic stir bars <br /> and methanol solution. <br /> D O NA EPA 8015M One 4-ounce glass jar with TeflonTM- Cool, <_ VC40 day 14 s <br /> PAH SIM EPA 8270-SIM lined cap Cool, <— 6°C 14 days/ <br /> 40 days <br /> Soil Gas VOCs NA EPA TO-15 1-liter SUMMA®canister None 30 days <br /> Helium NA ASTM D1946 1-liter SUMMA®canister None 30 days <br /> Indoor/Outdoor Air VOCs NA EPA TO-15 SIM 6-liter SUMMA®canister None 30 days <br /> Notes: <br /> a Holding time is measured from time of sample collection to time of sample extraction and analysis. <br /> °C Degreed Celsius QAPP Quality assurance project plan <br /> ASTM ASTM International SIM Selected ion monitoring <br /> EPA U.S.Environmental Protection Agency TO Toxic organics <br /> ICP-MS Inductively coupled plasma mass spectrometer TPH-DRO Total petroleum hydrocarbons-diesel range organics <br /> mL Milliliter TPH-GRO Total petroleum hydrocarbons-gasoline range organics <br /> NA Not applicable VOC Volatile organic compound <br /> PCB Polychlorinated biphenyl <br /> 46 <br />