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Table C-1: Containers and Holding Times for Air Sample Analyses Geosyntec V <br /> Quality Assurance Project Plan consultants <br /> Soil Vapor Assessment Work Plan <br /> Lincoln Center, Stockton, California <br /> Parameter Matrix Analytical Method' Container Maximum Holding Time <br /> Volatile Organic Compounds Air USEPA TO-15 1 Liter Summa Canister 30 days <br /> Helium Air ASTM D1946 1 Liter Summa Canister 130 days <br /> Notes: <br /> Containers and holding times given are for referenced method. <br /> 1 —Or equivalent method. <br /> Acronyms: <br /> ASTM—American Society of Testing and Materials <br /> NA—Not applicable <br /> USEPA—United States Environmental Protection Agency <br /> Page 1 of 1 <br />