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METHODS TO CONTAIN POLLUTED GROUND WATER <br /> AND RETARD THE MIGRATION OF THE PLUME <br /> The methods used to contain the plume of contamination are: <br /> (1) Eliminating the source of the leak. <br /> (2) Continual "depressiono€ the ground water table with a pumping <br /> rate of 20 gpm to achieve an approximate 200 ft. radius of ' <br /> I <br /> influence. <br /> (3) Continual removal of :the phased fuel from the cone of <br /> depression in the recovery well. <br /> (4) Creating a hydro-seal at the northern perimeter of the <br /> contaminated area. <br /> I <br /> i <br /> i <br />