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Sequoia 680 Chesapeake Dnvc Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> RECEIVED <br /> r s <br /> DEC 2 199 <br /> Ground Zero Analysis, Inc "-`- `" ' __��`"�_'-�- <br /> 1714 Main St y Client Prol ID 97 163 Sampled 12/15/97 <br /> Sample Descript KR EFF Received 12/16/97 <br /> Escalon, CA 95320 Matrix AIR <br /> Analysis Method 8015Mod 8020 <br /> Attention Greg Stahl / Analyzed 12/18/97 <br /> _ _ Lab Number 9712970-01 Reported 12f22197 <br /> r QC�umber GC12189713TEX02A _ <br /> t Instrument ID GCHP2 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit <br /> Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 10 <br /> Benzene 38 <br /> Toluene 010 61 <br /> Ethyl Benzene 010 3 7 <br /> Xylenes(Total) 010 0 7 <br /> Chromatogram Pattern 0 10 1 8 <br /> Gas <br /> Surrogates Control Limits% ° <br /> Tnfluorotoluene Recovery <br /> 70 ,6 <br /> 130 104 <br /> r <br /> � I <br /> I <br /> I <br /> 5 <br /> l <br /> I <br /> 6 <br /> f <br /> k <br /> I <br /> K Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> t <br /> r <br /> { <br /> e Penner <br /> t Project Manager <br /> k Page 1 <br /> 4 <br /> S <br /> 7 <br />