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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytieal 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br />_ ms»mss—xxrs :» •• •••ar res sirs-ss—x sssx.— —sr:sss xs —s ssxs nx —n —x x x s—x — <br /> sr <br /> ,-- -E! <br /> ssh r r :w» ^mss' xss xn^r+xnx•»»»rs:sx: —s• »» —»—s s» —~_s» _--»se ^•^•• --_s s sssss xr•s rsxs <br /> Gettler RyanjGeostrategies Client Prol ID Unocal SS#x 5417, 1x80179 85 Sampled 11/23/98 = <br /> 6747 Sierra ourt Suite J Sample Descnpt MW-2 Received 11/23/98 <br /> Dublin, CA 94568 <br /> Matrix LIQUID , <br /> 3 Analysis Method 8015Mod/8020 Analyzed 12/02/98 » <br /> N Attention Deanna Harding____ _ _ Lab_ Number 9811A00-03 »_»»» » Reported 12117198 <br /> bC-Batch Number GC120298802005A »— <br /> Instrument ID HP5 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 100 340 <br /> Methyl t-Butyl Ether 50 N D <br /> Benzene 10 N D <br /> Toluene 1 0 N D <br /> Ethyl Benzene 1 0 N D <br /> Xylenes (Total) 1 0 N D <br /> Chromatogram Pattern <br /> Weathered Gas C8-C12 <br /> Surrogates Control Limits% % Recove <br /> Trifluarotoluene 70 130 84 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 41271 <br /> r <br /> er <br /> ject Manager Page 5 <br />