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TGI — Indoor Air, Ambient Air, Sub-Slab Vapor, and Soil Vapor 04ARCADIS <br /> Sampling for Analysis via USEPA Compendium Method TO-10A <br /> Rev: 0 1 Rev Date: March 10, 2023 <br /> 11 Quality Assurance <br /> Conduct quality assurance as required by the project- <br /> COMPRESSION <br /> specific work plan and/or Quality Assurance Project NUT ITT <br /> VALVE FERRULESET <br /> Plan (QAPP). Typically, one duplicate sample is TELF°NORTEFLON- <br /> required per 10 or 20 samples. Indoor air duplicate <br /> LINE[)1""°D TUBING A F <br /> ABSORBENT <br /> samples are collected using a separate PUF absorbent PUF TUBES°" <br /> ABSORBENT �-- VAPOR <br /> tube sampler and low flow air pump and is placed TUBE �' ADAPTER <br /> directly next to the parent PUF absorbent tube air °W '' <br /> sampler. Sub-slab and soil vapor samples are collected FLOW AIR OW <br /> PUMP :,, <br /> using a duplicate tee with a separate PUF absorbent POMP <br /> ,� lJ4"I°SILICONE TUBING <br /> tube, PUF absorbent tube soil vapor adapter, and low <br /> flow air pump for the duplicate as shown in the figure to TO-10A SUB-SLAB VAPOR <br /> SUB-SLAB DUPLICATE SAMPLE <br /> the right. VAPOR POINT I CONFIGURATION WITH <br /> VAPOR PIN•" <br /> SEPARATE PURGE <br /> Provide one field blank filter/PUF cartridge to the <br /> laboratory with each group of samples. Treat a field blank exactly as the sample except that air is not drawn <br /> through the PUF cartridge assembly (i.e., wearing gloves remove from packaging, expose to the air, then <br /> repackage and ship to lab). <br /> 12 References <br /> USEPA. 1999. Compendium of Method TO-10A. Determination of Pesticides and Polychlorinated Biphenyls in <br /> Ambient Air using Low Volume Polyurethane Foam (PUF) Sampling Followed by Gas <br /> Chromatography/Mass Spectrometry (GC/MS). <br /> Contest. Pace Analytical Laboratory. 2021. Compendium Method TO-4A/TO-10A by Soxhlet Extractor <br /> (Method 3540C). <br /> Eurofins. 2008. Air Toxics LTD. Sorbents and Solutions. Guide to Air Sampling &Analysis. <br /> Printed copies of this Technical Guidance Instruction are uncontrolled. Page 13 of 14 <br />