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Standard Operating Procedures Subsurface Soil Sampling using Direct Push Technology Methods sampling depth or sampling interval to the drilling subcontractor. The project geolog ist/sam piing engineer is also responsible for the collection of representative environmental or stratigraphic characterization samples once the sampling device has been retrieved and opened. Additional sample collection responsibilities include labeling, handling, and storage of samples until further chain-of-custody procedures are implemented. 2.2 Drilling Subcontractor It will be the responsibility of the drilling subcontractor to provide the necessary DPT equipment for obtaining subsurface soil samples. This generally includes the truck or ATV-mounted percussion/probing machine and one or more Macro-Core and Large Bore samplers in good operating condition, appropriate liners, and other necessary equipment for borehole preparation and sampling. It is the drilling subcontractor's responsibility to provide and maintain their own boring logs if desired. Equipment decontamination materials should also be provided by the subcontractor and should meet project specifications. 3.0 REQUIRED MATERIALS In addition to those materials provided by the subcontractor,the project geologist/sampling engineer will require: • Project WP and HASP • Boring Logs • Teaspoon or spatula • Sample kit(bottles, labels, custody records and tape, cooler) • Sample collection pan • Folding rule or tape measure • Utility knife • Equipment decontamination materials • Health and safety equipment(as required by HASP) • Field project notebook/pen Sampling equipment which comes in direct contact with environmental samples during the sample collection process should be constructed of stainless steel, Teflon, or glass, unless specified otherwise in the WP. 4.0 METHOD Page 6 of 14