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Pacific Coast Producers <br /> Page 2 <br /> . 1 <br /> A statement of qualifications for each lead professional should be included in all reports. initial tank <br /> removal and soil sampling does not require such expertise; however, bore hole and monitoring well <br /> installation and logging,and impact assessments do require such a professional. [SUPPLEMENTS SECTIONS <br /> II D.4a.1 OF LUFT] <br /> All future reports are to include: <br /> -complete results for all samples analyzed at the labs, <br /> -site map showing the.location of all previous and proposed soil borings and/or monitoring wells, <br /> -the signature and stamp of the appropriate registered or certified individual(s); and <br /> -all boring logs compiled using the accepted methodology and by the appropriate, qualified <br /> individual. <br /> This office does not concur with the closure recommendation for this site. Our records document sandy soils <br /> and a xylene concentration over 40 parts per million in the soil. The environmental fate worksheet (used <br /> to determine if soil must be cleaned up or left in place) in the LUFT Manual cannot be used to evaluate this <br /> site given these conditions. <br /> Therefore, further assessment at this site needs to be addressed. Please submit a work plan to investigate <br /> the full horizontal and vertical extent of contamination, to this office, by October 7, 1991. <br /> If you have any questions, contact Linda Turkatte, EHS, of my staff at (209)468-3442. <br /> Jogi Khanna, M.D., M.P.H. <br /> Health Offi <br /> "_ez <br /> �/"1'aune A CotuIla, REHS, Program Manager <br /> Environmental Health Division <br /> LAC/LT:nr <br /> Enc. <br /> c: CVRWQCB - Elizabeth Thayer <br /> c: Dufour Environmental <br /> 819 F Street; Sacrament, CA 95814 <br /> i <br />