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=� CDIM Standard Operating Procedure �W10 V 0 2.1 Subsurface Soil Sampling Rev.1 10/23/2020 tape over each end of the sleeve and seal each end with plastic end caps. Custody seals may be used for additional sample security. If using glass jars, cap or seal the jars appropriately. Custody seals may be used for additional sample security. Appropriately label and number the sample containers per the project work plans. Where required by the project work plans, remove the soil from one of the remaining sleeves and place it in a seam-sealing, polyethylene bag for organic vapor screening. Place the bag in the sunlight for at least five minutes, then using an organic vapor probe (e.g., portable photoionization detector, flame ionization detector, or other appropriate instrument), monitor the soil for organic vapors. Record the reading on the Borehole/Well Construction Log as specified in and any other form(s) specified in the project work plans. The sampling event should be documented as described in the project work plans. Descriptions of any examined core material should be recorded. Appropriately preserve, handle, package, and ship the samples per the project work plans. Fill and abandon the sample hole as required by the project work plans. 3.7 VOC Sample Collection When collecting samples for VOC analysis, sample disturbance must be minimized as it could result in analyte loss. Samples are first collected as grab samples, then immediately collected into appropriate VOC samplers such as TerraCore or EnCore samplers. These sampler kits consist of a small plastic tube with a T-handle on one end, and can either be locked in place to retain the sample within it, or pushed to release the sample into an appropriate glass jar for shipping. The sampling event should be documented as described in the project work plans, with appropriate labels, sample descriptions, and notes in the field log. 4. RECORDS Records generated as a result of this SOP will be controlled and maintained by the PM in the appropriate Dropbox data folder. Records will mainly consist of data documented in logbooks or on field data sheets. At a minimum, the following data is recorded: • Name of the sampler • Sample ID number • Sample location • Sample depth • Sample description • Date and time of sample collection • Weather conditions during sampling • Approximate quantity of sample collected • Type of analysis to be performed • Method of sample collection • Sketch or diagram of sample location 6