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I <br /> Sequoia 580 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> t900 Bates Avenue Suuc L Concord CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Analytical 319 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> -Canonte Environmental~ - Client Prol—lD_ 94-3i2, Chevron Stockton Received 02/07/95 _ <br /> 1710 Main Street <br /> Escalon, CA 95320 Lab Proj ID 9502367 Reported 02/21/95 <br /> Attention John Lane - <br /> LABORATORY NARRATIVE <br /> i <br /> TEPH Diesel Analysis <br /> Sample CS MW-1 is reported as 51 ug/L of total extractable petroleum <br /> hydrocarbons quantified as diesel The chromatogram pattern of the sampleidoes <br /> not match the diesel standard, nor does it match the pattern of trace (less <br /> than detection limit) hydrocarbons found in the extraction blank When samples <br /> of this pattern are quantified against a diesel standard as required by the <br /> method the effect is often to exaggerate the level of total extractable <br /> petroleum hydrocarbons present This information should be considered when <br /> evaluating the reported results for this sample <br /> • <br /> SEQUOIA ANALYTICAL <br /> Vickie Tague Clark <br /> Project Manager Page 1 <br />