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• <br /> • <br /> • <br /> • • Quantity of fluid in well prior to development standing in the well and contained <br /> • in saturated annulus (assume 30 percent porosity). <br /> • • Field measurement of pH, EC, and temperature during development using an <br /> • electrometric device. <br /> • <br /> • • Depth from top of well casing to bottom of well. <br /> • • Screen length. <br /> • <br /> • • Depth from top of well casing to top of sediment inside well,before and after <br /> • development. <br /> • . Physical character of removed water, to include changes during development in <br /> • clarity, color,particulates, and odor. <br /> • Type and size/capacity of pump and/or bailer used. <br /> • • Description of surge technique. <br /> • <br /> • . Height of well casing above ground surface. <br /> • • Quantity of fluid/water removed and time for removal (present both incremental <br /> • and total values). <br /> • Water removed from the well for development will not be counted toward the volumetric <br /> • removal requirements of any pre-sample purging. <br /> • Following completion of the work, the contractor will remove from the premises and <br /> • work areas all excess materials, tools, and equipment used in the execution of the work, <br /> • and will properly dispose of all construction and development debris. <br /> • E. WELL SURVEY <br /> The elevation of the top of the interior well casing (north side) will be determined by a <br /> licensed land surveyor. The elevation reference point at each monitoring well will be <br /> • measured within 0.01 foot. This elevation will be the basis for determining the depth to <br /> • groundwater. The surveyor will also determine the coordinates of the well(i.e., northings <br /> • and eastings). <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • Riverbank WWTP Workplan Nolte Associates,Inc. <br /> • March 2005 6 \\SasO\project\SA1542Mon_well\new\gw wiwp\wp.doo <br /> • <br />