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Kennedy/Jenks ConsukaMs <br /> SOG 4: Standard Operating Guideline <br /> Groundwater Sampling <br /> 4.1 Introduction <br /> This Standard Operating Guideline (SOG) provides the procedures typically followed by <br /> Kennedy/Jenks Consultants personnel during the collection of groundwater samples from <br /> monitoring wells. Groundwater sampling from temporary boreholes (e.g., grab groundwater <br /> samples collected from direct push borings) is not addressed by this SOG. This SOG provides <br /> guidance on procedures that are generally consistent with standard practices used in environmental <br /> sampling. Federal, state and/or local regulatory agencies may require groundwater sampling <br /> procedures that differ from those described in this SOG and/or may require additional procedures. <br /> As guidance, this SOG does not constitute a specification of requirements for groundwater <br /> sampling. Deviations from, and additions to, the procedures described herein may be appropriate <br /> based on project-specific sampling objectives, site-specific conditions, and/or regulatory <br /> requirements. The user of this SOG should modify the sampling procedures used, as appropriate, <br /> to conform to the project-specific requirements and then document such deviations from this SOG <br /> in the project-specific documentation of groundwater sampling activities. <br /> This SOG does not address Quality Assurance/Quality Control (QA/QC) procedures for <br /> groundwater sampling in detail. While some general QA/QC procedures are addressed, <br /> project-specific QA/QC procedures should be developed and presented in a Quality Assurance <br /> Project Plan (QAPP), field sampling and analysis work plan, or other project-or activity-specific <br /> document. <br /> This SOG contains the following sections: <br /> • Field Equipment/Material <br /> • Typical Procedures for Monitoring Well purging and Groundwater Sampling <br /> • Stabilization Criteria for Adequacy of Monitoring Well Purging <br /> • Quality Control Guidance <br /> • Investigation-Derived Waste (IDW) Management <br /> • References <br /> 4.2 Field Equipment/Materials <br /> Material/equipment typically required for the collection of groundwater samples from monitoring <br /> wells may include: <br /> • Electric water-level monitoring probe <br /> • Bladder pump, peristaltic pump, pre-cleaned, disposable, 2-or 4-inch bailers with <br /> disposable cord, inertial pump, submersible pump, passive diffusion bags or other suitable <br /> apparatus for purging the well and sampling <br /> • Flexible discharge tubing [polyethylene (PE), TeflonTM, or similar] <br /> • Purge water collection container <br /> Monitoring Well Replacement Work Plan, SOG 4 <br /> Sutter Home Lodi Winery, Lodi, California Page 1 of 7 <br /> e'x�,w'�4rowe�osssoos.�s zmananrenv+wort+'m•�.navweacn_.,aa�a sw.�mv_re��.eo <br />