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1 Trace Analysis Laboratory,Inc. Telephone (415) 783-69W <br /> 3423 Investment Boulevard, #8 • Hayward, California 94545 Facsimile (415) 783-1512 <br /> � w <br /> 1 <br /> June 7, 1991 <br /> 1 <br /> Mr. James Jensen <br />' Versar, Inc. <br /> 5330 Primrose Drive, Suite 228 <br /> Fair Oaks, CA 95628 <br />' Dear Mr. Jensen: <br /> t Trace Analysis Laboratory received three air samples on June 4, <br /> 1991, for your Project No. 6264.308, Ashley Lane/PB Stockton (our <br /> custody Log Number 9948) . <br /> These samples were analyzed for Total Petroleum Hydrocarbons as <br /> Gasoline, Benzene, Toluene, Xylenes and Ethylbenzene. Our analytical <br /> report and the completed chain of custody form are enclosed for <br /> your review. <br /> Trace Analysis Laboratory is certified under the California Environ- <br /> mental Laboratory Accreditation Program. Our certification number <br /> is 1199. <br /> If you should have any questions or require additional information, <br />' please call me. <br /> Sincerely yours, <br /> Louis DuPuis <br /> QA/QC Manager <br /> Enclosures <br /> Founding Member of the Association of California Testing Laboratorigs <br />