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10 June 1999 <br />' AGE-NC Project No 97-0290 <br /> Page 26 of 26 <br /> f <br /> • Investigation of permitting requirements for discharge of extracted ground water to the City <br /> of Lodi sanitary sewer system <br /> • Upon review of permitting requirements, perform cost comparison of treatment of extracted <br /> ground water versus installation of additional spargmg wells <br />' • Preparation of a Remedial Action Work Plan detailing the proposed installation and <br /> operation of the selected system <br /> • Installation of either the IAS or the ground water extraction system at the site concurrently <br />' with the proposed SVE system <br /> • Based upon the relatively high concentrations of hydrocarbons in ground water at the site, <br />' an estimated t,treatment period i of 12 to 18 months should be sufficient to reduce <br /> concentrations to a level suitable for closure consideration <br />' 10.0. LIMITATIONS <br />' Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> environmental consultants practicing in this or similar localities The findings were based on <br /> analytical results provided by an independent laboratory Evaluations of the geologic/hydrogeologic <br /> conditions at the site for the purpose of this investigation are made from a limited number of <br /> available data points (i a monitoring wells, soil borings) and subsurface conditions may vary away <br />' from these data points No other warranty, expressed or implied, is made as to the professional <br /> recommendations contained in this report <br /> I <br /> I <br /> . Advanced GeoEnvtronmental,Inc <br /> I <br />