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Geweke Property <br /> 16 Cherokee Lane, Lodi - 2 - 13 June 2002 <br /> two wells will be completed in Unit 3 at 110 to 120 feet and 112 to 117 feet. Board staff believe that the <br /> proposed well in Unit 2 with a screen interval at 80 to 90 feet in a silt/sandy silt unit would be improved by <br /> constructing the well with a screen interval of 75 to 80 feet in the sand unit above. With this exception,Board <br /> staff concur with AGE'S recommendations. <br /> By 22 July 2002,please submit a complete plan of work to install the two proposed well clusters. In general,the <br /> plan of work should include a proposal to collect continuous core soil samples across the proposed screen <br /> intervals to evaluate preferential pathways(more transmissive zones)where contaminants are more likely to <br /> migrate. Modifications to the proposed screen intervals may need to be made based on the evaluation of <br /> preferential pathways. Well screen intervals below the water table should be limited to five to ten foot sections <br /> based on lithology encountered, and water table wells should not exceed 15 feet of screened interval (5 feet <br /> above and 10 feet below the static water table). <br /> Please notify me a minimum of business days prior to any site work or sampling. If you have any questions or <br /> comments,please call me at(916)255-3115. <br /> C [/ 4Ia�R.G. 41 <br /> arty <br /> Associate Engineering Geologist <br /> cc: Mr. Mark Owens,UST Cleanup Fund, SWRCB, Sacramento <br /> Mr.Harlin Knoll, San Joaquin County Environmental Health Division, Stockton <br /> Mr. Brian Millman, Advanced GeoEnvironmental,Incorporated, Stockton <br />