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M CDIM Standard Operating Procedure 2.2 Surface and Shallow Soil Sampling N 0 1 N i R R I N 0 Rev.0 1/27/2022 project plans. Field personnel assigned to conduct surface and shallow subsurface soil/sediment sampling activities are responsible for completing their tasks according to specifications outlined in this SOP, the project work plan, and other appropriate procedures. All of the staff are responsible for reporting deviations from procedures to the field coordinator. 3.2 Prerequisites Prior to collecting each sample, all sample equipment must be decontaminated according to the Equipment Decontamination SOP (5.0), as well as any additional procedures that may be outlined in the project work plans. In addition, sampling locations must be appropriately cleared of all underground utilities and buried objects per the project work plans. At a minimum, clearing of sampling locations should consist of notifying Underground Service Alert at least 48 hours prior to any intrusive activities. Forms and diagrams documenting the location of the cleared sampling locations should be reviewed for any underground utilities or lines, or other buried objects. Much of the health and safety equipment used during field work comes calibrated from the vendor with a certificate of such. When field calibration of health and safety monitoring equipment is required, it should be conducted according to the instrument manufacturer's specifications. Calibration results should be recorded on the appropriate form(s), as specified in the project work plans. Instruments that cannot be calibrated according to the manufacturer's specifications should be removed from service and tagged. Employ appropriate personal protection equipment as specified in the project work plans. Clear the area to be sampled of surface debris and vegetation using equipment that will not be used for sample collection or will be decontaminated prior to use in sampling. 3.3 Sampling Equipment The sampling and analytical requirements, as well as site characteristics, must be taken into account when determining the proper surface or subsurface soil or sediment sampling equipment to use. A number of devices may be used to collect surface soil and/or sediment samples. These include: core samplers, hand augers, spoons, scoops, trowels, shovels, triers, etc. These devices are constructed of a variety of materials, including stainless steel, brass, plastic, glass, Teflon, etc. 3.4 Surface and Other Non-Borehole Soil/Sediment Sample Collection When the sample depth is less than about one foot, and not collected from a borehole, a sediment or soil sample can be collected by using tools such as a shovel, hand auger, trowel, or stainless steel spoon/scoop, disposable scoops, etc. These tools can also be used when collecting samples from an excavator's bucket (see Section 3.6 below). These tools can be used to scoop or collect soil/sediment and directly transfer the matrix into a pre-cleaned sample container (e.g., glass jar, brass sample sleeve, etc.). The project work plans will specify the type of sampling equipment and sample containers to be used. 3.5 Subsurface Soil Sample Collection Using a Hand Auger or Drive Hammer The common method for collecting shallow subsurface sediment samples, both disturbed and undisturbed, is to use a hand auger or drive hammer to bore to the desired sampling depth and then retrieve the sample with a core sampler. The core sampler is typically a hollow, stainless steel cylinder that is tapered at the leading end. The hand auger might also be used to recover 3