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M CDIM Standard Operating Procedure <br /> 4.1 Soil Vapor Sampling <br /> '"°'"""'"' Rev.1 6/30/2022 <br /> • Method of sample collection <br /> • Sketch or diagram of sample location <br /> 5 HEALTH AND SAFETY <br /> All work will be performed under CDIM's Corporate Health and Safety Plan. A Project <br /> Health and Safety Plan (PHSP) will be prepared for the sampling site prior to commencement of <br /> field work. All project personnel and subcontractors at the site will review the PHSP prior to <br /> commencing work and will comply with the PHSP requirements. <br /> 6 ATTACHMENTS <br /> Attachment 1.1 — Installation and Extraction of the Vapor Pin TM SOP <br /> Attachment 1.2— Use of the Vapor Pin TPA Drilling Guide and Secure Cover SOP <br /> Attachment 2.1 —Typical Single and Nested Soil Vapor Well Construction Diagram <br /> Attachment 2.2—Soil Gas Sampling Train and Leak Detection <br /> Attachment 3.1 —Sampling Train Manifold <br /> Attachment 3.2—Shut-in Test/Purge Manifold <br /> Attachment 4—Soil Vapor Sampling Data Sheet <br /> 7 REFERENCES <br /> Alpha Analytical, 2022. EPA Method TO-15, Determination of Volatile Organic Compounds <br /> (VOCs) in Air. <br /> Department of Toxic Substances Control, 2015. Advisory Active Soil Gas Investigations. <br /> Vapor Pin Enterprises, Inc., 2021. Standard Operating Procedure: Installation and Extraction of <br /> the Vapor Pin TM Sampling Device. Plain City, Ohio. <br /> Vapor Pin Enterprises, Inc., 2021. Standard Operating Procedure: Use of the Vapor Pin TM <br /> Sampling Device Drilling Guide and Secure Cover. Plain City, Ohio. <br /> Vapor Pin TM, 2020. "Vapor PinTm Live Demo Including Leak Testing". YouTube, Vapor Pin Live <br /> Demo Including Leak Testing (water dam, mechanical and helium) - YouTube. Dated 23 <br /> September. <br /> 9 <br />