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A4OM <br /> Laboratory analytical procedures will be conducted in general accordance with EPA <br /> Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air, <br /> Second Edition Compendium Method TO-15, Determination Of Volatile Organic Compounds <br /> (VOCs) In Air Collected In Specially-Prepared Canisters and Analyzed By Gas <br /> Chromatography/ Mass Spectrometry (GC/MS). The vapor analyses will be performed under <br /> the EPAFASTAC hierarchical tiering system for VOCs (Compendium Method TO-15). <br /> Table Summary of Laboratory Analytical Requirements <br /> HoldingReference Method Volume, Maximum maximum <br /> Parameters and Preservation and . . <br /> Method Type Container Storage Requirements Time Time <br /> Type (Preparation) (Analysis) <br /> Compendium Specially Ambient temperature, <br /> Method TO- vocs GC/MS Prepared closed leak-freevalve with 30 days 14 days <br /> 15 Canister tightened cap <br /> Notes: <br /> GC/MS Gas Chromatograph/Mass Spectrometry No. Number <br /> L liter VOC Volatile Organic Compound <br /> N/A Not Applicable <br /> 4 DOCUMENTATION <br /> Specific field forms will be used to record data and information during the field activities. <br /> Field notebooks will also be used during the field work to document daily activities, including <br /> decontamination of equipment, set-up, sampling, sample packaging and shipment, and <br /> health and safety issues. Mistakes on the forms and notebooks will be crossed out with a <br /> single line and initialed. <br /> 4.1 Summa® Canister Sampling Field Data Sheet <br /> Field data collected during Summa® canister sample collection will be recorded on a field <br /> form. Data recorded on the sheet includes: <br /> • Site name <br /> • Sample ID <br /> • Date <br /> • Sampler name <br /> • Summa®canister ID <br /> • Regulator ID <br /> • Purge volume <br /> • Summa® canister size <br /> • Shroud description <br /> • Tracer gas <br /> • General comments section <br />