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Standard Operating Procedures <br /> Subsurface Soil Sampling using Direct <br /> Push Technology Methods <br /> targeted. The liner should be cut with a knife and the sample immediately extracted and <br /> containerized. Clean and label the container and place it into a cooler immediately. Residual sample <br /> may then be used to fill other sample or logging requirements. <br /> 5.0 QUALITY CONTROL <br /> Quality control requirements are dependent on project-specific sampling objectives. The WP will provide <br /> requirements for equipment decontamination (frequency and materials),sample preservation and holding <br /> times, sample container types, sample packaging and shipment, as well as requirements for the collection of <br /> various quality assurance samples such as trip blanks, field blanks, equipment blanks, and field duplicate <br /> samples. <br /> 6.0 DOCUMENTATION <br /> Various forms are required to ensure that adequate documentation is made of sample collection activities. <br /> These forms include: <br /> • Boring logs <br /> • Field log books <br /> • Sample collection records <br /> • Chain-of-custody records <br /> • Shipping labels <br /> Boring logs will provide visual and descriptive information for each sample collected and are often the most <br /> critical form of documentation generated during a soil sampling program. The field log book is kept as a <br /> general log of activities and should not be used in place of the boring log. Occasionally, sample collection <br /> records are used to supplement boring logs, especially for environmental samples which have been collected <br /> for laboratory analysis. Chain-of-custody forms are transmitted with the samples to the laboratory for sample <br /> tracking purposes. Shipping labels are required if sample coolers are to be transported to the laboratory by a <br /> third party(courier service). Original copies of these records should be maintained in the appropriate project <br /> files. <br /> 7.0 REFERENCES <br /> GeoprobeTM Systems,August 1993, 1993-94 Equipment and Tools Catalog". <br /> Page 10 of 14 <br />