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I <br /> 1 <br /> EXHIBIT A <br />' July 21 . 199A - A meeting was held at the offices of the San <br /> Joaquin County EHD to discuss what additional work would be <br /> required in order to obtain site closure. In attendence were <br />' Stephen Valentine, owner of the property; William Hunter of Wm. <br /> J. Hunter & Associates, (consultant to Mr_ Valentine, ) and Steve <br /> Sasson & Margaret Lagorio from the County Environmental Health <br />' Division. It was agreed at that meeting that further excavation <br /> was not practical due to space constraints. It was further <br /> agreed that a soil boring in the middle of the site of the <br /> removed tank would be sufficient to assess possible contamination <br />' beneath the site. Two methods were discussed; a conventional <br /> small diameter auger hole, or a large diameter boring using a <br /> much larger rig. Either method would be agreeable to the County. <br /> Mr. Hunter made an inspection of the large diameter boring <br /> equipment and discussed it' s operation with the drilling <br />' superintendent. As a result of that investigation and <br /> conversations with Mr. Valentine, it was decided to use a <br /> conventional auger rig to perform the work. A workplan to <br /> accomplish that task is detailed below. <br /> WORKPLAN FOE PLACING ONE SOIL BORING IN THE CENTER OF THE SITE OF <br /> HE REMOVED WASTE OIL TANK AT 2315 EL WRADO ST STOCKTON, C <br /> t1 . Mobilize Spectrum Exploration auger rig & support truck. <br /> Work is to be conducted under approved drilling permit 0 93-2072, <br /> issued October 8, 1993; it is attached as EXHIBIT B. The permit <br /> ' was submitted showing Osterberg & Stewart as the contractor <br /> However, due to a scheduling conflict, Spectrum Exploration was <br /> substituted; that change was approved by Steve Sarson of the <br /> County EHD. <br /> 2 Spot rig on the site marked SB-5 on PLATE IV. which is the <br /> center of the site of the removed waste oil tank on SB-5. The <br /> ' exact location of that removed tank has been determined by the <br /> owner; it may not coincide exactly with the attached site snap. <br /> It' s actual location will be measured and a revised map prepared <br /> ' upon completion of the work. <br /> 3 Using clean, 8 1/4" OD auger flights, the hole will be <br /> ' advanced to 40' bgl under the direction of a registered geologist <br /> from Wm. J Hunter & Assoc. <br /> ' 4 . Soil samples will be taken at 5' intervals from 15' bgl to <br /> 40 ' using an 18" California Modified splitspoon sampler filled <br /> with clean metal tubes. <br /> 5. One (1) sample tube from each cored interval will be briefly <br /> ' 4 <br />