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14 Gettler Ryan Geostrategil <br />€€ 6747 Sierra Court Suite J <br />Dublin, CA 94568 <br />�€ Attention: Dave Vossler <br />QC Batch Number:*GC060 <br />Instrument ID: GCHP18 <br />Analyte <br />TPPH as Gas <br />Benzene <br />Toluene <br />Ethyl Benzene <br />Xylenes (Total) <br />Chromatogram Pattern: <br />Surrogates <br />Trifluorotoluene <br />4-Bromofluorobenzene <br />eake Drive <br />404et Lane <br />680Wtner�Avenue. <br />Redwood City, CA 94063 <br />Walnut Creek, CA 94590 <br />(650) 364-9600 <br />(510) 988-9600 <br />FAX (650) 364-9233 <br />FAX (510) 988-9673 <br />819 Suite 8 <br />Sacramento, CA 95834 <br />(916) 921-9600 <br />FAX (916) 921-0100 <br />1455 McDowell Blvd. North, Ste. D <br />Petaluma, CA 94954 <br />(707) 792-1865 <br />FAX (707) 792-0342 <br />Client Proj. ID: Unocal 11194 <br />Sample Descript: Comp DC (comp) <br />Matra: SOLID <br />Analysis Method: 8015Mod/8020 <br />Lab Number: 9805G06-01 <br />Received: 05%26%98 ` <br />Extracted: 06/03/98 <br />Analyzed: 06/08/98 <br />Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br />Detection Limit Sample Results <br />mg/Kg mg/Kg <br />.................... 50 .................... 390 <br />0.25 N.D. <br />.................... 0.25 .................... 1.6 <br />.................... 0.25 .................... 3.1 <br />.................... 0.25 .................... 8.0 <br />.................... .................... GAS <br />Control Limits % <br />70 130 <br />60 140 <br />Analytes reported as N.D. were not present above the stated limit of detection. <br />SEQUOIA ANALYTICAL - ELAP 01210 <br />T <br />3). <br />Tod Granicher <br />Project Manager <br />% Recovery <br />1500 <br />11 Q <br />Page: <br />2 <br />