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K Kennedy Jenks <br /> Appendix D: Standard Operating Guideline - <br /> Well Construction and Development <br /> D.1 Introduction <br /> This guideline describes procedures used by Kennedy/Jenks Consultants, Inc. (Kennedy Jenks) <br /> personnel for well construction and development following completion of boring and soil sampling <br /> procedures (described in Standard Operating Guideline, Boring and Subsurface Soil Sampling). <br /> D.2 Well Construction Materials <br /> • 4-inch or 2-inch Schedule 40 PVC blank casing <br /> • 4-inch or 2-inch Schedule 40 PVC slotted casing, of appropriate slot size <br /> • 4-inch or 2-inch Schedule 40 PVC threaded and slip caps <br /> • Hasp-locking standpipes <br /> • Ground-level traffic-rated watertight well housing enclosure <br /> • Locking expansion plugs <br /> • Combination or key lock <br /> • Filter pack sand <br /> • Type I or II Portland cement <br /> • Concrete <br /> • Bentonite powder <br /> • 0.25-inch bentonite pellets or chips. <br /> D.3 Well Development Equipment <br /> • 4-inch or 2-inch diameter vented surge block <br /> • Submersible pump (2-inch or larger) <br /> • 55-gallon DOT-approved drums <br /> • Teflon, stainless steel or PVC bailer. <br /> D.4 Typical Procedure <br /> 1. Following completion of selected borings, install the monitoring well casing through the center of <br /> the hollow stem auger, drive casing, or open boring. The monitoring well consists of a PVC <br /> Schedule 40 slotted well casing of appropriate diameter and a blank casing with a threaded <br /> bottom cap and a slip or threaded top cap or watertight expansion plug. The casing string must <br /> be held in tension during initial installation. <br /> 2. Place clean, well graded sand around the slotted section of the monitoring well to serve as the <br /> filter pack. The grade of sand is chosen on the basis of aquifer units encountered. The filter <br /> pack is emplaced as the auger or temporary casing is removed from the boring. <br /> 3. Ensure that filter pack sand for the well extends to approximately 3 feet above the top of the <br /> screened interval. <br /> 4. If required in the well construction permit, notify the appropriate inspector prior to placing the <br /> well seal. <br /> Monitoring Well Installation Work Plan, D-1 <br /> The Wine Group, Franzia Winery, Ripon, CA <br /> P.\1 S-Proj\2003-post archive\030120.XY_GW Mon Well Support\09-Reports\piecesWPP_D SOG Well_Const.doc <br />