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GRO <br /> San Joaquin County Environmental Health Department <br /> December 18, 2003 (Project No. 03.537) <br /> detects certain organic compounds such as petroleum hydrocarbons. Because of the past <br /> agricultural uses in the area, Fugro also proposes to collect four samples at a depth of six inches <br /> below the ground surface for limited environmental testing. <br /> Borehole Sealing <br /> The borings will be conducted under the required drilling permit issued by the San Joaquin County <br /> Environmental Health Department and will be backfilled with lean cement grout in accordance with <br /> the requirements of the permit. We have assumed that soil cuttings generated during the drilling <br /> can be left on-site. If we discover contamination during the drilling operations, then we will contain <br /> the drill cuttings in drums and have the drums hauled to a licensed landfill. We anticipate that no <br /> water will be generated for disposal at the site. We will clear the proposed exploration locations for <br /> underground utilities by contacting Underground Service Alert. <br /> Scope of Laboratory Testing <br /> At this time, Fugro has only established a laboratory testing program for the four surface <br /> soil samples. We anticipate the past uses of the site have been agricultural and that pesticides <br /> and/or herbicides have been used. We have therefore planned to test the four soil samples for <br /> the presence of organo chlorine pesticides in accordance with EPA Test Method 8081. During <br /> the Phase I Environmental Site Assessment, we may identify other potential contaminants at the <br /> site, and we may therefore add additional laboratory testing. If, during our drilling operations, we <br /> encounter soils with high OVM vapor readings that are indicative of petroleum hydrocarbons or <br /> solvents, and we will designate additional analyses to quantify concentrations of these <br /> compounds. <br /> Site Plan and Safety Plan <br /> We have included on the attached plate the proposed locations of the fifteen borings for the <br /> three parcels. <br /> Closure <br /> We request that you review the work plan and the Well Permit Application Permit Form. We <br /> have included a check for $368 to cover the permit fee, and we have attached a copy of the <br /> signed right of entry agreement between the current owner and the purchaser. Our drilling is <br /> currently scheduled for January 5, 2004. Please provide us with any questions or comments as <br /> soon as possible on our permit application and work plan so that we can proceed with the <br /> drilling operations. <br /> GAPROPOSED W0RK%2003=.53TW0RK_PLAN.D0C 2 <br />