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Kennedy/Jenks Consultants <br /> SOG 3: Standard Operating Guideline <br /> Well Construction and Development <br /> 3.1 Introduction <br /> This guideline describes procedures used by Kennedy/Jenks Consultants personnel for well <br /> construction and development following completion of boring and soil sampling procedures <br /> (described in Standard Operating Guideline, Boring and Subsurface Soil Sampling). <br /> 3.2 Well Construction Materials <br /> • 2-inch or 4-inch Schedule 40 PVC blank casing <br /> • 2-inch or 4-inch Schedule 40 PVC slotted casing, of appropriate slot size <br /> • 2-inch or 4-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 /> 3.3 Well Development Equipment <br /> • 2-inch or 4-inch-diameter vented surge block <br /> • 1-inch dedicated PVC hose for monitoring well development and purging <br /> • Submersible pump (4-inch-diameter wells or larger) <br /> • 55-gallon DOT-approved drums <br /> • Teflon, stainless steel or PVC bailer <br /> • Bladder pump (2-inch diameter wells only) <br /> 3.4 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 /> Monitoring Well Installation Work Plan SOG 3 <br /> Delicato Family Vineyards, Manteca, California Page 1 <br /> yb'symuP�a4minybM0710765007.00_tl3Fcala1094osVminslaMwrk pMbOPm&x aU wslkarelo E <br />