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• directly from either the sidewall or floor by scraping material directly into the laboratory <br /> pre-sterilized glass containers with the container itself Each container was completely <br /> filled, packed down with fresh latex-gloved hands and covered with both a Teflon sheet <br /> and thenar lid, leaving no space for volatilization of organic compounds Each sample <br /> was promptly labeled and then placed into a chilled icechest <br /> After all of the 48 samples were collected they were grouped into 12 composites <br /> of geographically proximal samples and entered as such onto the chain of custody sheets <br /> The samples were then taken to STL Chromalab (a division of Sevem Trent Services) in <br /> Pleasanton, California for composite blending and analyses <br /> Analyses Results <br /> The results of these analyses show that the level of contamination has dropped <br /> dramatically since the soil was first excavated in 1998-99 Under test method 8270C <br /> (semi volatiles) all samples were non-detect for the analytes and no higher than 135 ppm <br /> for any of the surrogates This nearly matched the Batch QC results For test method <br /> 8015M (diesel) nine of the twelve sample results were no higher than 160 ppm and the <br /> three outliers were 220, 610 and 810 ppm Lastly, for test method 8021 B (BTEX) again <br /> all sample results were non-detect and less than the surrogate concentration for <br /> Trifluorotoluene found in the Batch QC <br /> Discussion <br /> Based on the results of the analyses RMC Pacific Materials would like to request <br /> that we be able to use the soil in the two piles for in-house road use (not for sale) This <br /> request would be in line with what was allowed us from Alameda County Department of <br /> Environmental Health when we remediated contaminated soil at two of our other <br /> facilities within their jurisdiction The levels of contamination are minor and certainly <br /> less than what would come off of a fresh asphalt surface during any rain event <br /> If you have any questions you can reach me at (925) 426-2261 <br /> I <br /> I <br /> Thank you <br /> Robert Aldenhuysen <br /> Environmental Supervisor <br /> Cc Mike Kemnitz—Kerlinger Plant <br /> Dennis Tsuchida—Main Office <br /> Butch Kelly—Eliot Plant <br /> files <br />