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CALGON <br />CALGON CARBON CORPORATION P.O. BOX 717 PITTSBURGH, PA 15230- (412) 787-6700 <br />0717 <br />Writer's Direct Dial Number <br />412/787-6756 <br />September 10, 1985 <br />Ms. Laurie Cotulla F�CMIYEI <br />San Joaquin Local Health District <br />1602 East Hazelton SEP 1 1 1985 <br />Stockton, CA 952001 <br />ENVIROMENTAL HEALTH <br />SUBJECT: Additional Analyses for Stockton East FERMIT/SERVICES <br />Dear Ms. Cotulla: <br />On August 27, I sent you a waste profile of granular activated carbon from <br />the Stockton East Water Treatment Plant for landfilling at the Foothills <br />Landfill on Waverly Road. <br />I have enclosed GC/MS analyses performed by Montgomery Laboratories on two <br />of the four filters containing granular activated carbon to be landfilled. <br />Since all the filters are operated in parallel, the analyses should be very <br />similar, as the data indicate. <br />Also, note that in our profile,geosmin was estimated to be 4 wt.%, and the <br />maximum concentration is on 0.2 mg/kg. <br />If you have any additional concerns, please call me. <br />Very truly yours, <br />CALGON CARBON CORPORATION <br />Roland J. B ur eau <br />Applicati ns Engineer <br />RJB: ah <br />Enc 1. (4) <br />