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' WORKPLAN FOR COMPLETION OF AN AQUIFER TEST <br /> Geweke Site, 16 South Cherokee Lane, Lodi, California <br />' 1.0 INTRODUCTION <br /> In accordance with a request from Mark Geweke of Geweke Land Development and <br /> Marketing, Geological Audit Services, Inc (GeoAudit) has prepared this work plan to <br /> conduct an aquifer test at the Geweke Site Iocated at 16 South Cherokee Lane, Lodi, <br /> California (the site) <br /> I1.1 Objectives <br /> In a letter dated dune 7, 1994, the Central Valley Regional Water Quality Control Board <br /> (CVRWQCB) will require the installation of a groundwater "pump and treat" system in the <br /> event that the dissolved-phase hydrocarbons in groundwater had migrated beyond the down- <br /> gradient groundwater monitoring wells Prior to the installation of the "pump and treat <br /> system", the CVRWQCB required the completion of a 24-hour (minimum) aquifer test <br /> The objectives of the aquifer test include determining the necessary data to be used for <br /> designing and installing a groundwater "pump and treat" system These parameters include <br /> transmissivity, hydraulic conductivity, capture zone analysis, and maximum sustainable <br /> pumping rate of the extraction well(s) <br /> 1.2 Description of Site and Existing Wells <br /> The site is located in a commercial area of Lodi, California (Figure 1) Fifteen (15) <br /> groundwater monitoring wells (Wells MW-1 through MW-14 and EW-1) currently exist at <br /> the site and the surrounding vicinity (Figure 2) -- <br /> 2.0 AQUIFER TEST METHODOLOGY <br /> The aquifer test will consist of three phases The first phase includes conducting a <br /> 9 P P g <br /> preliminary pump test Phase II will include conducting the full-scale constant-rate aquifer <br /> test for a minimum of 24-hours Phase III will include performing slug test(s) on several <br /> of the down-gradient wells in the site vicinity <br /> All water generated by aquifer test activities will be stored temporarily in a 4,500 gallon <br /> above-ground tank Once the aquifer test has been completed, samples of the water will be <br /> 1 analyzed for waste profiling Once the water has been classified, the water will then be <br /> transported under manifest to an appropiate receiving facility <br /> I <br /> Geological Audit Services, Inc. <br /> CMSGeweke wp] 1 <br />