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FIGURE' 2 - schematic Representation of Wellhead <br />Design for Pumping Tests <br />Spigot for water sampling <br />Gate valve and/or flow controller valve for <br />controlling discharge rate Discharge Pipe <br />Discharge point downgradient of well <br />Flowmeter or Orifice Weir <br />Automated datalogger <br />records water levels <br />Ground Surface <br />steel well casing <br />Pressure transducer measures water levels <br />Borehole <br />Calibrated container for <br />volumetric measurement <br />of discharge rate <br />SUBMERSIBLE PUMP powered by a portable generator <br />Jroundwater, Inc. <br />