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Soil Classification Standard Operating Procedure SWE-FSOP-201;Revision 0 Ahtna Southwest Environmental Operations 1.0 Introduction 1.1 Purpose This Standard Operating Procedure (SOP) establishes uniform guidelines and procedures for field personnel when completing descriptions of soil samples obtained during field sampling efforts and entering the information into soil boring logs. Standardization is important to minimize variations in evaluations among geologists, which is essential for creating consistency in subsurface interpretations. This procedure will be used during all field activities when borehole subsurface drilling, surface soil sampling, or reconnaissance geological mapping is performed.These activities should be documented as described herein and follow SWE-FSOP-001 (Field Documentation). 1.2 Scope The scope of this SOP is to describe the data entry requirements for logging the physical properties of soil using procedures modifed from, but generally consistent with American Society for Testing Materials (ASTM) Method D2488 (Visual-Manual Procedure). 1.3 Responsibilities Field Team. A Field Team is one or more individuals working together. The Field Team is responsible for the oversight of and/or collection of groundwater samples as specified in this SOP. Field Team Lead (FTL). The FTL is responsible for reviewing project work plans to understand the health and safety needs, procedural specifications,and field documentation requirements.The FTL is responsible for reviewing and confirming the adequacy of the fieldwork documentation. Geologist.The Geologist(who may also be the FTL) is responsible for performing or having oversight over Field Team members performing the same work. The Geologist is responsible for the accurate and complete representation of the lithology encountered in the field, as well as review and approval of final logs to be stored in project files and presented in client deliverables. Project Lead (PL). The PL is responsible for providing adequate resources to the field staff and ensuring the Field Team has adequate experience and training to comply with the SOP successfully. The PL is responsible for approving and documenting techniques not described in this SOP but are considered the best methods for the current project. Safety Representative. The Safety Representative meets the experience and training requirements of USACE EM-385-1-1 (USACE, 2014). The Safety Representative oversees site-specific health and safety activities and ensures compliance with the project requirements. The Safety Representative notifies the PL of safety deficiencies and incidents and actions to correct those. The PL approves those actions or notifies the Site Safety and Health Officer for their approval if the circumstance warrants involvement. Quality Control Lead(QC Lead).The QC Lead ensures work inspections are performed using the 3-Phases of Quality Control method described in the project work plans. The QC Lead notifies the PL of quality deficiencies and actions to correct those. The PL approves those actions or notifies the SWE Field QC Manager for their approval if the circumstance warrants involvement. Page 4 of 11