Laserfiche WebLink
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 /> 0 60-mL syringe equipped with a three-way Luer-Lok TM valve. <br /> o Tedlar®bag <br /> 6 Cautions <br /> All samples must be extracted within 7 days after collection and analyzed within 40 days of extraction. <br /> All samples are to be shipped and stored at<4°C until extracted. <br /> Care must be taken to minimize the potential for introducing interferences during the sampling event. As such, <br /> keep PUF samplers away from heavy pedestrian traffic areas (e.g., main entranceways, walkways, designated <br /> smoking areas, pesticide storage areas), if possible. <br /> PCB manufacturing was banned in 1979, however, it was widely used until then. Potential sources of PCBs are <br /> transformers, electrical equipment/capacitors, fluorescent light ballasts, adhesives, caulk, and oil-based paints. <br /> Pesticides are widely used for agricultural, commercial, and residential use. <br /> Sampling personnel should not handle hazardous substances (such as gasoline), permanent marking pens <br /> (sharpies), wear/apply fragrances or hand sanitizers, or smoke cigarettes before and/or during the sampling <br /> event to prevent cross contamination. Only the materials listed in this TGI should be used to complete the <br /> sampling procedure. Any use of alternative materials must be approved by the CPM and a technical <br /> expert prior to use. <br /> Health and Safety Considerations <br /> All sampling personnel should review the appropriate health and safety plan (HASP)and job safety analysis (JSA) <br /> prior to beginning work to be aware of all potential hazards associated with the job site and the specific task. <br /> 8 Procedure <br /> The Method TO-10A low-volume sampling procedures are detailed in this section. Contact the laboratory to <br /> determine appropriate sample volume and air flow rates for project specific constituents and achievable <br /> reporting limits. <br /> The general procedure for collection of a PUF sample includes: <br /> 1. Placement and set-up of the sampling unit <br /> 2. Calibration of the sampling pump <br /> 3. Setup of the sampling module <br /> 4. Collection of sample <br /> 5. Termination of sample <br /> 6. Determination of flow rate <br /> 7. Shipping of Samples <br /> Printed copies of this Technical Guidance Instruction are uncontrolled. Page 7 of 14 <br />