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(� The auger and sampler were cleaned with trisodium phosphate and <br /> clean water rinse, prior to and between sampling/augering. Upon <br /> obtaining the soil sample, the sleeve is withdrawn from the sample <br /> barrel; and the uncovered ends are screened with the HNU-PID (all <br /> were non detectable) , then capped with aluminum foil, plastic end <br /> caps, sealed with duck tape, labeled, put into a zip lock freezer <br /> nag, and placed upon dry ice in a cooler for preservation. The <br /> chain of cu&tody was filled out prior to leaving the site and the <br /> samples were hand delivered to ChemTech Laboratories (State of <br /> California Cert. # 359) . <br /> SOIL REHEDIATION <br /> On May 29, 1990, phone communications with Ms. Eleanor Ratliff of <br /> San Joaquin County Health indicated the following concerning our <br /> proposed vapor extraction well within the tank excavation: <br /> 1. Ms. Ratliff and Mrs. Hinson feel that the "Versadrilled" <br /> boring would not be a satifactory method for installing <br /> the well. <br /> 2. The proposed vapor extraction uell shall not extend <br /> deeper than the 10 year high ground water level for the <br /> area. <br /> 3. The vapor extraction well will need to have at least a <br /> 10 foot bentonite-neat cement seal from the surface to <br /> . � depth. � <br /> 4. The vapor extraction well will not be connected to a <br /> vapor extraction system and :gust remain capped to <br /> prevent vapor loss, until a satisfactory remediation <br /> action plan has been approved. <br /> 5. The ground water contamination needs to be defined. <br /> 6. we are in violation, due to not being able to obtair <br /> permission for the placement-development-sampling of <br /> the offsite monitor well(s) with report by May 20, 1990, <br /> as stated in her letter dated April 19, 1490. <br /> 7. she recognized our problems with obtaining permission <br /> for an offsite well, inwhich we asked her help in a <br /> letter dated May 7, 1990, and we have kept her well <br /> informed on our progress with Mr. Gong Lee and Mr. <br /> Angelos Parisis. <br /> a. Ms. Ratliff suggested a meetin, to air out any problems <br /> concerning this site, with hPi and her supervisor (Mrs. <br /> Hinson) , yourself and m,!, I agreed this should take <br /> place. <br /> 9. Ms. Ratliff was going to VAX me her comments concerning <br /> the vapor extraction well, but not having received any <br /> 40, 2 <br />