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Groundwater Well Development Field Standard Operating Procedure SWE-FSOP-602;Revision 1 Ahtna Southwest Environmental Operations 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 the current version of U.S. Army Corps of Engineers EM-385-1-1 Safety and Health Requirements.The Safety Representative oversees site-specific health and safety activities and ensures compliance with the project requirements. The Safety Representative notifies the FTL of safety deficiencies and incidents and actions to correct those. If the circumstance warrants,the FTL approves those actions and notifies the PL and Site Safety and Health Officer for their approval. Quality Control Lead (QC Lead).The QC Lead ensures work inspections are performed using the 3-Phases of the 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. 1.4 Definitions Bailer. A bottom-filling cylindrical tube with an open top and check valve at the bottom used to remove water and sediment from a borehole or well. Bailing. A well development technique uses a bailer raised and lowered in the well to create a strong inward and outward movement of water from the formation, break sand bridges, and remove water and fine-grained materials from the well. Extraction Well.A well designed to extract fluids(such as water,gas,free product,or a combination)from the subsurface. Field Documentation—The combination of field logbooks/notepads,field forms,digital/electronic forms, and other documentation in the project file. Field Forms — Any documentation that preserves an accurate historical record of field activities but is recorded on unbound paper. These forms should be referenced in the FLB. Each data entry field should have an entry or indicate that data for that field is not available or not required. [PFAS Project]: Record of field events will be maintained on loose paper(PFAS-free) secured on Masonite or aluminum clipboards. Plastic clipboards, binders, or spiral hard cover notebooks are not acceptable. Field logbooks are permanently assigned to a specific project. Field Logbook(FLB)—A portable, bound, weatherproof notebook with consecutively numbered pages. [PFAS Project]: Use field logbook made of standard/loose plain paper(non-weatherproof), held together by an aluminum or Masonite field clipboard. Alternatively, a spiral-bound notebook with non-weatherproof paper and/or cover can be used. Field Notepad—A unbound notepad or loose-leaf paper with consecutively numbered pages. Investigation Derived Waste(IDW). Waste that is generated in the process of investigating or examining a contaminated site. Page 5 of 11