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IT CORPORATION <br /> Mr. J. Kelly Williamson <br /> Kayo Oil Company <br /> April 17, 1985 <br /> Page 4 <br /> estimated to be .$57,000. If biostimulation is added to the system, the <br /> additional start-up costs are estimated to be $60,000. <br /> Operational costs of monitoring the basic recovery well and monitoring <br /> levels in the monitor wells is $3,000 per month. If the carbon system <br /> is added, an additional monthly cost of $ ,500 is estimated for carbon <br /> replacement. If bioenhancement is also added, the monthly operation <br /> costs are likely to increase by $4,000. <br /> The system will have to operate for at least a year, and more likely <br /> three to five years, to achieve cleanup with the pumping system alone. <br /> If bioenhancement is added, the operational life of the system may be <br /> shortened to a year. <br /> We trust that this information is responsive to your needs at this <br /> time. If you have any further questions, please feel free to call me at <br /> our Martinez, California office, (415) 228-8400. <br /> Very truly yours, <br /> 1 <br /> Robert M. Galbraith, R.G. 3881 , <br /> Manager, Geotechnical Services <br /> RMG:jc <br /> 0043 <br /> Attachments <br /> p <br /> M <br /> S <br /> 1 <br />