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Soil Vapor Sampling Log <br /> Site: Date: <br /> Sample ID: Samplers: <br /> Summa Canister ID: Sample Manifold ID: <br /> Helium Monitor Make/Model: <br /> Shut-In Test <br /> Time Vacuum (in Hg) <br /> Shut-In Start Vacuum must be held for at least 1 minute <br /> Shut-In End <br /> Pre-Sample Purge and Helium Leak Test <br /> Purging Method: <br /> Purging Notes: <br /> Time Vacuum (in Hg) Flow Rate(mL/min) Volume Purged (mL) <br /> Purge Start <br /> 1 Purge Volume <br /> 3 Purge Volumes <br /> Minimum Helium Detected in Shroud (%v): <br /> Maximum Helium Detected in Purge Line(%v): <br /> Sample Collection <br /> Time Vacuum (in Hg) Helium in Shroud (%v) Notes <br /> Sample Start <br /> Sample End <br /> Notes: <br />